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-rwxr-xr-xtrex_book.asciidoc17
1 files changed, 15 insertions, 2 deletions
diff --git a/trex_book.asciidoc b/trex_book.asciidoc
index df78de04..5e544786 100755
--- a/trex_book.asciidoc
+++ b/trex_book.asciidoc
@@ -150,8 +150,21 @@ NOTE: You should buy seperatly the 10Gb/sec SFP+, Cisco would be fine with TRex
==== Supported versions
-Fedora 18-20, and Ubuntu 14.04.1 LTS are the Linux OS supported.
-More OS could be supported by compiling the drivers.
+Fedora 18-20 , and Ubuntu 14.04.1 LTS are the Linux OS supported.
+You should install the *64bit* Kernel version.
+More 64bit OS could be supported by compiling the drivers.
+
+WARNING: Only *64bit* Kernels are supported
+
+To verify that your kernel is 64bit version try this
+
+[source,bash]
+----
+$uname -m
+x86_64 #<1>
+----
+<1> x86_64 is the desired output
+
==== Download ISO file