diff --git a/perl-xCAT/xCAT/Schema.pm b/perl-xCAT/xCAT/Schema.pm
index e596cc058..13fbcbc8e 100644
--- a/perl-xCAT/xCAT/Schema.pm
+++ b/perl-xCAT/xCAT/Schema.pm
@@ -632,9 +632,10 @@ linuximage  => {
   kerneldir => 'The directory name where the 3rd-party kernel is stored. It is used for diskless image only.',
   nodebootif => 'The network interface the stateless/statelite node will boot over (e.g. eth0)',
   otherifce => 'Other network interfaces (e.g. eth1) in the image that should be configured via DHCP',
-  netdrivers => 'the ethernet device drivers of the nodes which will use this linux image, at least the device driver for the nodes\' installnic should be included',
-  kernelver => 'the version of linux kernel used in the linux image. If the kernel version is not set, the default kernel in rootimgdir will be used',
-  permission => 'the mount permission of /.statelite directory is used, its default value is 755',
+  netdrivers => 'The ethernet device drivers of the nodes which will use this linux image, at least the device driver for the nodes\' installnic should be included',
+  kernelver => 'The version of linux kernel used in the linux image. If the kernel version is not set, the default kernel in rootimgdir will be used',
+  krpmver => 'The rpm version of kernel packages (for SLES only). If it is not set, the default rpm version of kernel packages will be used.',
+  permission => 'The mount permission of /.statelite directory is used, its default value is 755',
   dump => qq{The NFS directory to hold the Linux kernel dump file (vmcore) when the node with this image crashes, its format is "nfs://<nfs_server_ip>/<kdump_path>". If you want to use the node's "xcatmaster" (its SN or MN), <nfs_server_ip> can be left blank. For example, "nfs:///<kdump_path>" means the NFS directory to hold the kernel dump file is on the node's SN, or MN if there's no SN.},
   comments => 'Any user-written notes.',
   disable => "Set to 'yes' or '1' to comment out this row.",