diff --git a/xCAT-client/pods/man1/genimage.1.pod b/xCAT-client/pods/man1/genimage.1.pod
index e3a3ab03f..d6de32b9e 100644
--- a/xCAT-client/pods/man1/genimage.1.pod
+++ b/xCAT-client/pods/man1/genimage.1.pod
@@ -53,8 +53,8 @@ for statelite: B<liteimg>
 
 Becides prompting for the input for some paramters, the B<genimage> command takes default quesses for the parameters not specified or not defined in the I<osimage> and I<linuximage> tables. It also makes default answers for questions from yum/zypper command when installing rpms into the image. Please use --interactive flag if you want yum/zypper command to prompt you for the answers.  
 
-The B<genimage> command must be run on a system that is the same architecture as the nodes it will be
-used on.  If the management node is not the same architecture, copy the contents of
+The B<genimage> command must be run on a system that is the same architecture and same distro with same majar release version as the nodes it will be
+used on.  If the management node is not the same architecture or same distro level, copy the contents of
 /opt/xcat/share/xcat/netboot/<os> to a system that is the proper architecture, and mount /install from
 the management node to that system. Then change directory to /opt/xcat/share/xcat/netboot/<os> and run ./genimage.