feat(doc): Infra updates

Signed-off-by: Peter Mikus <pmikus@cisco.com>
Change-Id: I208fc73382754d3182f6f7eedc1a46ae72ef6aa2

78 files changed, 80 insertions, 77 deletions

diff --git a/docs/lab/testbeds_sm_icx_hw_bios_cfg.md b/docs/lab/testbeds_sm_icx_hw_bios_cfg.md
index e787d2c6c9..b897d64593 100644
--- a/docs/lab/testbeds_sm_icx_hw_bios_cfg.md
+++ b/docs/lab/testbeds_sm_icx_hw_bios_cfg.md
@@ -1242,6 +1242,9 @@ Host.           IPMI IP.      BMC.      BIOS. CPLD.     CPU Microcode.  PCI Bus.
 s65-t37-sut1.   10.30.50.75.  1.00.21.  1.1.  F1.00.07. 0D000280.       A5.01.24.  8.30 0x8000a49d 1.2926.0. 2.17.15. 3.20 0x8000d83e 1.3146.0. 1.8.3.
 s66-t37-sut2.   10.30.50.76.  1.00.21.  1.1.  F1.00.07. 0D000280.       A5.01.24.  8.30 0x8000a49d 1.2926.0. 2.14.15. 3.20 0x8000d83e 1.3146.0. 1.8.3.
 s67-t37-tg1.    10.30.50.77.  1.00.21.  1.1.  F1.00.07. 0D000280.       A5.01.24.  8.30 0x8000a49d 1.2926.0. 2.14.13. 3.20 0x8000d83e 1.3146.0. 1.8.3.
+s78-t38-sut1.   10.30.50.78.  1.00.21.  1.1.  F1.00.07. 0D000280.       A5.01.24.  8.30 0x8000a49d 1.2926.0. 2.17.15. 3.20 0x8000d83e 1.3146.0. 1.8.3.
+s79-t38-sut2.   10.30.50.79.  1.00.21.  1.1.  F1.00.07. 0D000280.       A5.01.24.  8.30 0x8000a49d 1.2926.0. 2.14.15. 3.20 0x8000d83e 1.3146.0. 1.8.3.
+s80-t38-tg1.    10.30.50.80.  1.00.21.  1.1.  F1.00.07. 0D000280.       A5.01.24.  8.30 0x8000a49d 1.2926.0. 2.14.13. 3.20 0x8000d83e 1.3146.0. 1.8.3.
 s71-t212-sut1.  10.30.50.81.  1.00.21.  1.1.  F1.00.07. 0D000280.       A5.01.24.  8.30 0x8000a49d 1.2926.0. 2.17.15. 3.20 0x8000d83e 1.3146.0. 1.8.3.
 s72-t212-tg1.   10.30.50.82.  1.00.21.  1.1.  F1.00.07. 0D000280.       A5.01.24.  8.30 0x8000a49d 1.2926.0. 2.14.13. 3.20 0x8000d83e 1.3146.0. 1.8.3.
 s83-t213-sut1.  10.30.50.83.  1.00.21.  1.1.  F1.00.07. 0D000280.       A5.01.24.  8.30 0x8000a49d 1.2926.0. 2.17.15. 3.20 0x8000d83e 1.3146.0. 1.8.3.
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:42:68:6f:68:ee b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:42:68:6f:68:ee
index ed48f8edd4..3cd09aa930 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:42:68:6f:68:ee
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:42:68:6f:68:ee
@@ -1,4 +1,4 @@
 menuentry "Install s39-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:42:68:6f:68:ee url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:42:68:6f:68:ee/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:42:68:6f:68:ee url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:42:68:6f:68:ee/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:42:68:6f:6f:c0 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:42:68:6f:6f:c0
index ebb2b284cf..b01923d117 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:42:68:6f:6f:c0
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:42:68:6f:6f:c0
@@ -1,4 +1,4 @@
 menuentry "Install s40-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:42:68:6f:6f:c0 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:42:68:6f:6f:c0/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:42:68:6f:6f:c0 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:42:68:6f:6f:c0/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:f2:8b:7c:fb:12 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:f2:8b:7c:fb:12
index 083a63beb8..8284f69548 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:f2:8b:7c:fb:12
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:f2:8b:7c:fb:12
@@ -1,4 +1,4 @@
 menuentry "Install s41-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:f2:8b:7c:fb:12 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.29:8081/ubuntu_focal_amd64/00:f2:8b:7c:fb:12/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:f2:8b:7c:fb:12 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.29:8081/ubuntu_focal_amd64/00:f2:8b:7c:fb:12/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:f2:8b:7c:fb:4a b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:f2:8b:7c:fb:4a
index c15c3e38c4..1e7a4a2523 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:f2:8b:7c:fb:4a
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:f2:8b:7c:fb:4a
@@ -1,4 +1,4 @@
 menuentry "Install s44-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:f2:8b:7c:fb:4a url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:f2:8b:7c:fb:4a/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:f2:8b:7c:fb:4a url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:f2:8b:7c:fb:4a/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:58:1e:f6 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:58:1e:f6
index 86da6a1494..74cc9655b2 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:58:1e:f6
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:58:1e:f6
@@ -1,4 +1,4 @@
 menuentry "Install s42-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:58:1e:f6 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:58:1e:f6/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:58:1e:f6 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:58:1e:f6/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:32 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:32
index bdbaa720fe..675dda5a33 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:32
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:32
@@ -1,4 +1,4 @@
 menuentry "Install t1-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:e5:68:32 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:e5:68:32/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:e5:68:32 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:e5:68:32/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:c2 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:c2
index 8f583260b9..23b6c7af7b 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:c2
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:c2
@@ -1,4 +1,4 @@
 menuentry "Install s43-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:e5:68:c2 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:e5:68:c2/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:e5:68:c2 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:e5:68:c2/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:e0 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:e0
index 2386f00a5b..1f44abe127 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:e0
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:68:e0
@@ -1,4 +1,4 @@
 menuentry "Install t2-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:e5:68:e0 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:e5:68:e0/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:e5:68:e0 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:e5:68:e0/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:6a:72 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:6a:72
index ee898bbca8..14a455effc 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:6a:72
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:6a:72
@@ -1,4 +1,4 @@
 menuentry "Install t2-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:e5:6a:72 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:e5:6a:72/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:e5:6a:72 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:e5:6a:72/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:6c:76 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:6c:76
index bdc207278c..9b5b009ed8 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:6c:76
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-00:fe:c8:e5:6c:76
@@ -1,4 +1,4 @@
 menuentry "Install t1-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:e5:6c:76 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:e5:6c:76/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=00:fe:c8:e5:6c:76 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/00:fe:c8:e5:6c:76/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:c9:58 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:c9:58
index 80e7d3a551..d49c709aa9 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:c9:58
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:c9:58
@@ -1,4 +1,4 @@
 menuentry "Install s30-t35-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=0c:c4:7a:fc:c9:58 url=http://10.32.8.14:8081/ubuntu_focal_amd64/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://0.32.8.14:8081/ubuntu_focal_amd64/0c:c4:7a:fc:c9:58/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=0c:c4:7a:fc:c9:58 url=http://10.32.8.14:8081/ubuntu_focal_amd64/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://0.32.8.14:8081/ubuntu_focal_amd64/0c:c4:7a:fc:c9:58/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:ca:90 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:ca:90
index 5209f63f97..07238cc777 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:ca:90
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:ca:90
@@ -1,4 +1,4 @@
 menuentry "Install s31-t35-sut2" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=0c:c4:7a:fc:ca:90 url=http://10.32.8.14:8081/ubuntu_focal_amd64/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://0.32.8.14:8081/ubuntu_focal_amd64/0c:c4:7a:fc:ca:90/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=0c:c4:7a:fc:ca:90 url=http://10.32.8.14:8081/ubuntu_focal_amd64/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://0.32.8.14:8081/ubuntu_focal_amd64/0c:c4:7a:fc:ca:90/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:ca:cc b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:ca:cc
index 941d838804..cb7546828d 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:ca:cc
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-0c:c4:7a:fc:ca:cc
@@ -1,4 +1,4 @@
 menuentry "Install s29-t26-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=0c:c4:7a:fc:ca:cc url=http://10.32.8.14:8081/ubuntu_focal_amd64/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://0.32.8.14:8081/ubuntu_focal_amd64/0c:c4:7a:fc:ca:cc/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=0c:c4:7a:fc:ca:cc url=http://10.32.8.14:8081/ubuntu_focal_amd64/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://0.32.8.14:8081/ubuntu_focal_amd64/0c:c4:7a:fc:ca:cc/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-1c:1b:0d:01:d8:dc b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-1c:1b:0d:01:d8:dc
index ce3a395c80..dab9b55722 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-1c:1b:0d:01:d8:dc
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-1c:1b:0d:01:d8:dc
@@ -1,4 +1,4 @@
 menuentry "Install s50-nomad" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=1c:1b:0d:01:d8:dc url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/1c:1b:0d:01:d8:dc/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=1c:1b:0d:01:d8:dc url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/1c:1b:0d:01:d8:dc/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-1c:1b:0d:68:7c:b3 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-1c:1b:0d:68:7c:b3
index 8b29afcd96..47a1efc3a9 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-1c:1b:0d:68:7c:b3
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-1c:1b:0d:68:7c:b3
@@ -1,4 +1,4 @@
 menuentry "Install s49-nomad" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=1c:1b:0d:68:7c:b3 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/1c:1b:0d:68:7c:b3/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=1c:1b:0d:68:7c:b3 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/1c:1b:0d:68:7c:b3/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-38:0e:4d:9c:4b:0c b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-38:0e:4d:9c:4b:0c
index 13bf015fbe..4fcd0547e7 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-38:0e:4d:9c:4b:0c
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-38:0e:4d:9c:4b:0c
@@ -1,4 +1,4 @@
 menuentry "Install s45-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=38:0e:4d:9c:4b:0c url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/38:0e:4d:9c:4b:0c/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=38:0e:4d:9c:4b:0c url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/38:0e:4d:9c:4b:0c/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-38:0e:4d:9c:85:7a b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-38:0e:4d:9c:85:7a
index 734e7cee00..f5f6d3040f 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-38:0e:4d:9c:85:7a
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-38:0e:4d:9c:85:7a
@@ -1,4 +1,4 @@
 menuentry "Install s42-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=38:0e:4d:9c:85:7a url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/38:0e:4d:9c:85:7a/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=38:0e:4d:9c:85:7a url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/38:0e:4d:9c:85:7a/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:43:a3:ba b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:43:a3:ba
index 5b93f011ba..f0caf112a1 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:43:a3:ba
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:43:a3:ba
@@ -1,4 +1,4 @@
 menuentry "Install s60-t210-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:43:a3:ba url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/3c:ec:ef:43:a3:ba/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:43:a3:ba url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/3c:ec:ef:43:a3:ba/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:46:34:e8 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:46:34:e8
index dc01c238e2..22a20e1afd 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:46:34:e8
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:46:34:e8
@@ -1,4 +1,4 @@
 menuentry "Install s61-t210-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:46:34:e8 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/3c:ec:ef:46:34:e8/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:46:34:e8 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/3c:ec:ef:46:34:e8/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:7f:12 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:7f:12
index b1f70d6ff0..a771cea691 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:7f:12
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:7f:12
@@ -1,4 +1,4 @@
 menuentry "Install s72-t212-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:7f:12 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:7f:12/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:7f:12 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:7f:12/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:80 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:80
index dbb782f991..13973c3ce6 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:80
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:80
@@ -1,4 +1,4 @@
 menuentry "Install s66-t37-sut2" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:a6:80 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:a6:80/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:a6:80 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:a6:80/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:92 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:92
index 3d9417fd32..978e1a6e2c 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:92
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:92
@@ -1,4 +1,4 @@
 menuentry "Install s85-t214-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:a6:92 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:a6:92/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:a6:92 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:a6:92/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:ba b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:ba
index 7671aba517..50d416565b 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:ba
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:ba
@@ -1,4 +1,4 @@
 menuentry "Install s65-t37-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:a6:ba url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:a6:ba/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:a6:ba url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:a6:ba/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:c6 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:c6
index 323405033b..f4364296e6 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:c6
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:c6
@@ -1,4 +1,4 @@
 menuentry "Install s67-t37-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:a6:c6 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:a6:c6/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:a6:c6 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:a6:c6/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:ca b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:ca
index 6f57f9da1d..30e6fe38c0 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:ca
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:b9:a6:ca
@@ -1,4 +1,4 @@
 menuentry "Install s71-t212-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:a6:ca url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:a6:ca/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:b9:a6:ca url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:b9:a6:ca/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:26 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:26
index 3cdcb6c0e1..432b184931 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:26
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:26
@@ -1,4 +1,4 @@
 menuentry "Install s84-t213-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:92:26 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:92:26/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:92:26 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:92:26/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:b2 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:b2
index 1346bce647..b67a992069 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:b2
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:b2
@@ -1,4 +1,4 @@
 menuentry "Install s80-t38-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:92:b2 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:92:b2/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:92:b2 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:92:b2/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:e4 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:e4
index 596f1e3574..5f54673741 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:e4
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:e4
@@ -1,4 +1,4 @@
 menuentry "Install s86-t214-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:92:e4 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:92:e4/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:92:e4 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:92:e4/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:e8 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:e8
index b7da1427fd..50a11c2f71 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:e8
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:92:e8
@@ -1,4 +1,4 @@
 menuentry "Install s87-t215-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:92:e8 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:92:e8/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:92:e8 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:92:e8/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a0:d4 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a0:d4
index 1d084a5084..54e1a63439 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a0:d4
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a0:d4
@@ -1,4 +1,4 @@
 menuentry "Install s79-t38-sut2" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:a0:d4 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:a0:d4/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:a0:d4 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:a0:d4/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a0:ec b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a0:ec
index 02b197c064..c2238c4ac3 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a0:ec
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a0:ec
@@ -1,4 +1,4 @@
 menuentry "Install s78-t38-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:a0:ec url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:a0:ec/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:a0:ec url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:a0:ec/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a1:ac b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a1:ac
index e11d3ccb4c..04179b868a 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a1:ac
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a1:ac
@@ -1,4 +1,4 @@
 menuentry "Install s88-t215-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:a1:ac url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:a1:ac/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:a1:ac url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:a1:ac/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a1:ea b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a1:ea
index cdee030dd0..2670ff7b8a 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a1:ea
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-3c:ec:ef:bc:a1:ea
@@ -1,4 +1,4 @@
 menuentry "Install s83-t213-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:a1:ea url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:a1:ea/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=3c:ec:ef:bc:a1:ea url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/3c:ec:ef:bc:a1:ea/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e0:9f:cd b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e0:9f:cd
index 890ecf3e67..02a8a58c04 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e0:9f:cd
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e0:9f:cd
@@ -1,4 +1,4 @@
 menuentry "Install s54-nomad" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=40:8d:5c:e0:9f:cd url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/40:8d:5c:e0:9f:cd/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=40:8d:5c:e0:9f:cd url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/40:8d:5c:e0:9f:cd/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b0:aa b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b0:aa
index a623f31828..bec02bb232 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b0:aa
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b0:aa
@@ -1,4 +1,4 @@
 menuentry "Install s51-nomad" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=40:8d:5c:e7:b0:aa url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/40:8d:5c:e7:b0:aa/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=40:8d:5c:e7:b0:aa url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/40:8d:5c:e7:b0:aa/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b1:12 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b1:12
index 69ce1bbdf7..1434062473 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b1:12
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b1:12
@@ -1,4 +1,4 @@
 menuentry "Install s52-nomad" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=40:8d:5c:e7:b1:12 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/40:8d:5c:e7:b1:12/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=40:8d:5c:e7:b1:12 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/40:8d:5c:e7:b1:12/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b2:6e b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b2:6e
index 30389e62ef..a6ea93c726 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b2:6e
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b2:6e
@@ -1,4 +1,4 @@
 menuentry "Install fdio-marvell-dev" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=40:8d:5c:e7:b2:6e url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/40:8d:5c:e7:b2:6e/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=40:8d:5c:e7:b2:6e url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/40:8d:5c:e7:b2:6e/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b3:19 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b3:19
index 930b1609c8..2d5569a36b 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b3:19
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-40:8d:5c:e7:b3:19
@@ -1,4 +1,4 @@
 menuentry "Install s53-nomad" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=40:8d:5c:e7:b3:19 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/40:8d:5c:e7:b3:19/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=40:8d:5c:e7:b3:19 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/40:8d:5c:e7:b3:19/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-4c:00:82:ae:5a:f8 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-4c:00:82:ae:5a:f8
index 5f37336d7c..9ab26fbc3a 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-4c:00:82:ae:5a:f8
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-4c:00:82:ae:5a:f8
@@ -1,4 +1,4 @@
 menuentry "Install s43-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=4c:00:82:ae:5a:f8 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/4c:00:82:ae:5a:f8/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=4c:00:82:ae:5a:f8 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/4c:00:82:ae:5a:f8/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-58:ac:78:5c:90:78 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-58:ac:78:5c:90:78
index f8ae6de153..69c9a377cf 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-58:ac:78:5c:90:78
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-58:ac:78:5c:90:78
@@ -1,4 +1,4 @@
 menuentry "Install s45-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=58:ac:78:5c:90:78 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/58:ac:78:5c:90:78/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=58:ac:78:5c:90:78 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/58:ac:78:5c:90:78/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-6c:41:6a:1f:39:26 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-6c:41:6a:1f:39:26
index 87f71b6906..36da84becc 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-6c:41:6a:1f:39:26
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-6c:41:6a:1f:39:26
@@ -1,4 +1,4 @@
 menuentry "Install s42-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=6c:41:6a:1f:39:26 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/6c:41:6a:1f:39:26/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=6c:41:6a:1f:39:26 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/6c:41:6a:1f:39:26/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-a0:a3:3b:c1:12:fa b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-a0:a3:3b:c1:12:fa
index 04961a3563..480526983c 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-a0:a3:3b:c1:12:fa
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-a0:a3:3b:c1:12:fa
@@ -1,4 +1,4 @@
 menuentry "Install s18-t33-sut2" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=a0:a3:3b:c1:12:fa url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/a0:a3:3b:c1:12:fa/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=a0:a3:3b:c1:12:fa url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/a0:a3:3b:c1:12:fa/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-a0:a3:3b:c1:14:28 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-a0:a3:3b:c1:14:28
index c3ad3b9ded..218009b706 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-a0:a3:3b:c1:14:28
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-a0:a3:3b:c1:14:28
@@ -1,4 +1,4 @@
 menuentry "Install s17-t33-sut1" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=a0:a3:3b:c1:14:28 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/a0:a3:3b:c1:14:28/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=a0:a3:3b:c1:14:28 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/a0:a3:3b:c1:14:28/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6a:b4 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6a:b4
index 187274e6e3..2e1df4e291 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6a:b4
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6a:b4
@@ -1,4 +1,4 @@
 menuentry "Install s47-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:5a:6a:b4 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/ac:1f:6b:5a:6a:b4/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:5a:6a:b4 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/ac:1f:6b:5a:6a:b4/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6a:d4 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6a:d4
index d46ede3b88..deb4e5fc02 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6a:d4
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6a:d4
@@ -1,4 +1,4 @@
 menuentry "Install s46-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:5a:6a:d4 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.15:8081/ubuntu_focal_amd64/ac:1f:6b:5a:6a:d4/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:5a:6a:d4 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.15:8081/ubuntu_focal_amd64/ac:1f:6b:5a:6a:d4/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6b:08 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6b:08
index ff34c71235..5dbf44647e 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6b:08
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:5a:6b:08
@@ -1,4 +1,4 @@
 menuentry "Install s48-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:5a:6b:08 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/ac:1f:6b:5a:6b:08/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:5a:6b:08 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/ac:1f:6b:5a:6b:08/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8c:76 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8c:76
index b91dcc68a6..54ea3305f2 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8c:76
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8c:76
@@ -1,4 +1,4 @@
 menuentry "Install s1-t11-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8a:8c:76 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8a:8c:76/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8a:8c:76 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8a:8c:76/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:0a b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:0a
index 9bff7a23e8..0a3e8e25fa 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:0a
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:0a
@@ -1,4 +1,4 @@
 menuentry "Install s10-t24-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8a:8d:0a url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8a:8d:0a/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8a:8d:0a url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8a:8d:0a/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:94 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:94
index d5fd70ebb0..3891d0a0b4 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:94
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:94
@@ -1,4 +1,4 @@
 menuentry "Install s4-t21-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8a:8d:94 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8a:8d:94/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8a:8d:94 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8a:8d:94/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:b6 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:b6
index 7dffb605a4..b018ec5e7e 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:b6
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8a:8d:b6
@@ -1,4 +1,4 @@
 menuentry "Install s3-t21-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8a:8d:b6 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8a:8d:b6/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8a:8d:b6 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8a:8d:b6/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:60 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:60
index a0038b56f1..caeb0e4716 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:60
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:60
@@ -1,4 +1,4 @@
 menuentry "Install s19-t33t211-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:53:60 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:53:60/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:53:60 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:53:60/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:64 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:64
index 8038c3d329..670e5e2065 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:64
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:64
@@ -1,4 +1,4 @@
 menuentry "Install s14-t32-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:53:64 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:53:64/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:53:64 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:53:64/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:96 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:96
index 060122e5af..880a0e4743 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:96
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:53:96
@@ -1,4 +1,4 @@
 menuentry "Install s2-t12-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:53:96 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:53:96/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:53:96 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:53:96/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:54:c4 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:54:c4
index 53b630f9e2..34f7ecf26e 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:54:c4
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:54:c4
@@ -1,4 +1,4 @@
 menuentry "Install s11-t31-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:54:c4 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:54:c4/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:54:c4 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:54:c4/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:54:c8 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:54:c8
index 9557725a38..e6cee6d4c5 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:54:c8
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:54:c8
@@ -1,4 +1,4 @@
 menuentry "Install s28-t26t35-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:54:c8 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/ac:1f:6b:8b:54:c8/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:54:c8 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/ac:1f:6b:8b:54:c8/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:78 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:78
index eaeb6d60d4..e17bb4e37e 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:78
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:78
@@ -1,4 +1,4 @@
 menuentry "Install s13-t31-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:55:78 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:55:78/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:55:78 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:55:78/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:ae b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:ae
index e46d505592..fb2694a93a 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:ae
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:ae
@@ -1,4 +1,4 @@
 menuentry "Install s16-t32-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:55:ae url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:55:ae/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:55:ae url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:55:ae/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:d8 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:d8
index aa2da794c2..f22d1ee078 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:d8
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:55:d8
@@ -1,4 +1,4 @@
 menuentry "Install s9-t24-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:55:d8 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:55:d8/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:55:d8 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:55:d8/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:8c b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:8c
index 53c771fd84..ad54aae8bb 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:8c
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:8c
@@ -1,4 +1,4 @@
 menuentry "Install s8-t23-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:56:8c url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:56:8c/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:56:8c url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:56:8c/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:b6 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:b6
index dfecaa6f45..756eee997c 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:b6
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:b6
@@ -1,4 +1,4 @@
 menuentry "Install s12-t31-sut2" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:56:b6 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:56:b6/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:56:b6 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:56:b6/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:e2 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:e2
index 3e219603ab..8bd30ee2f6 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:e2
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:8b:56:e2
@@ -1,4 +1,4 @@
 menuentry "Install s15-t32-sut2" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:56:e2 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:56:e2/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:8b:56:e2 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:8b:56:e2/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d7:4a b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d7:4a
index 05613f12bf..2063cd866f 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d7:4a
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d7:4a
@@ -1,4 +1,4 @@
 menuentry "Install s6-t22-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ab:d7:4a url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ab:d7:4a/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ab:d7:4a url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ab:d7:4a/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d7:92 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d7:92
index fd995bdddf..1a26bb36d8 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d7:92
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d7:92
@@ -1,4 +1,4 @@
 menuentry "Install s7-t23-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ab:d7:92 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ab:d7:92/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ab:d7:92 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ab:d7:92/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d9:ae b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d9:ae
index 47365081db..4fd076d051 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d9:ae
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ab:d9:ae
@@ -1,4 +1,4 @@
 menuentry "Install s5-t22-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ab:d9:ae url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ab:d9:ae/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ab:d9:ae url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ab:d9:ae/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:56 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:56
index 5e2f9c305b..42c485247b 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:56
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:56
@@ -1,4 +1,4 @@
 menuentry "Install s36-t28-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:56 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:56/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:56 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:56/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:76 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:76
index 23514fd976..688386f17c 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:76
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:76
@@ -1,4 +1,4 @@
 menuentry "Install s38-t29-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:76 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:76/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:76 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:76/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:8c b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:8c
index 129c2f3bd2..89a1fa4721 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:8c
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:8c
@@ -1,4 +1,4 @@
 menuentry "Install s34-t27-tg1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:8c url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:8c/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:8c url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:8c/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:ba b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:ba
index a7d1f61566..eb808986c5 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:ba
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:ba
@@ -1,4 +1,4 @@
 menuentry "Install s37-t29-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:ba url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:ba/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:ba url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:ba/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:c0 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:c0
index 5bcfc1e4bc..f8008559a0 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:c0
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:c0
@@ -1,4 +1,4 @@
 menuentry "Install s35-t28-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:c0 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:c0/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:c0 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:c0/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:d6 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:d6
index 23e959b46e..86fb3619a7 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:d6
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d7:d6
@@ -1,4 +1,4 @@
 menuentry "Install s33-t27-sut1" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:d6 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:d6/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d7:d6 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d7:d6/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d9:2e b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d9:2e
index dc05e74a40..8c63c583fa 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d9:2e
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-ac:1f:6b:ac:d9:2e
@@ -1,4 +1,4 @@
 menuentry "Install s57-nomad" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d9:2e url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d9:2e/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=ac:1f:6b:ac:d9:2e url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.32.8.14:8081/ubuntu_focal_amd64/ac:1f:6b:ac:d9:2e/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-b4:2e:99:ab:1d:dc b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-b4:2e:99:ab:1d:dc
index 51795e239e..48725a8292 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-b4:2e:99:ab:1d:dc
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-b4:2e:99:ab:1d:dc
@@ -1,4 +1,4 @@
 menuentry "Install s56-t14-sut1" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=b4:2e:99:ab:1d:dc url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/b4:2e:99:ab:1d:dc/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=b4:2e:99:ab:1d:dc url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/b4:2e:99:ab:1d:dc/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-b4:2e:99:ab:1d:e8 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-b4:2e:99:ab:1d:e8
index 8a2e551d9a..7782299eb5 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-b4:2e:99:ab:1d:e8
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-b4:2e:99:ab:1d:e8
@@ -1,4 +1,4 @@
 menuentry "Install s55-t13-sut1" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=b4:2e:99:ab:1d:e8 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/b4:2e:99:ab:1d:e8/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=b4:2e:99:ab:1d:e8 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/b4:2e:99:ab:1d:e8/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-cc:46:d6:17:e0:58 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-cc:46:d6:17:e0:58
index 7e71653b3f..0ec7b83913 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-cc:46:d6:17:e0:58
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-cc:46:d6:17:e0:58
@@ -1,4 +1,4 @@
 menuentry "Install t1-sut2" {
-    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=cc:46:d6:17:e0:58 url=https://releases.ubuntu.com/20.04.3/ubuntu-20.04.3-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/cc:46:d6:17:e0:58/ --- console=ttyS0,115200n8 quiet
+    linux    /casper/ubuntu-focal-amd64/vmlinuz ip=dhcp interface=cc:46:d6:17:e0:58 url=https://releases.ubuntu.com/20.04.4/ubuntu-20.04.4-live-server-amd64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_amd64/cc:46:d6:17:e0:58/ --- console=ttyS0,115200n8 quiet
     initrd   /casper/ubuntu-focal-amd64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-d8:5e:d3:02:b1:9f b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-d8:5e:d3:02:b1:9f
index d6330a668a..97adc68d8f 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-d8:5e:d3:02:b1:9f
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-d8:5e:d3:02:b1:9f
@@ -1,4 +1,4 @@
 menuentry "Install s59-nomad" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=d8:5e:d3:02:b1:9f url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/d8:5e:d3:02:b1:9f/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=d8:5e:d3:02:b1:9f url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/d8:5e:d3:02:b1:9f/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-d8:5e:d3:02:b1:bb b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-d8:5e:d3:02:b1:bb
index adde6ea2cd..3dcc204ce8 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-d8:5e:d3:02:b1:bb
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-d8:5e:d3:02:b1:bb
@@ -1,4 +1,4 @@
 menuentry "Install s58-nomad" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=d8:5e:d3:02:b1:bb url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/d8:5e:d3:02:b1:bb/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=d8:5e:d3:02:b1:bb url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/d8:5e:d3:02:b1:bb/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file
diff --git a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-e0:d5:5e:ae:70:26 b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-e0:d5:5e:ae:70:26
index 882ffa25eb..fcd7827a12 100644
--- a/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-e0:d5:5e:ae:70:26
+++ b/fdio.infra.pxe/docker-dnsmasq/tftpboot/grub/grub.cfg-e0:d5:5e:ae:70:26
@@ -1,4 +1,4 @@
 menuentry "Install s27-t211-sut1" {
-    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=e0:d5:5e:ae:70:26 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.3-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/e0:d5:5e:ae:70:26/ --- console=ttyAMA0,115200n8 quiet
+    linux    /casper/ubuntu-focal-arm64/vmlinuz ip=dhcp interface=e0:d5:5e:ae:70:26 url=http://10.30.51.28:8081/ubuntu_focal_arm64/ubuntu-20.04.4-live-server-arm64.iso autoinstall ds=nocloud-net\;s=http://10.30.51.28:8081/ubuntu_focal_arm64/e0:d5:5e:ae:70:26/ --- console=ttyAMA0,115200n8 quiet
     initrd   /casper/ubuntu-focal-arm64/initrd
 }
\ No newline at end of file