roll kernel upgrade

If you need to upgrade kernel in kernel roll for any reason (driver problem for example). You can build your own Kernel roll with latest kernel update from CentOS/RHEL by follow the following procedure.

• Put the desired kernel RPMs in /export/rocks/install/contrib/5.1/<arch>/RPMS/
• Rebuild distribution: # cd /export/rocks/install && rocks create distro
• Check out the rocks source code by following these instructions
• Put all the same kernel RPMs to /src/roll/kernel/RPMS/<arch>. If the RPMS/<arch> does not exist, create one. Remember to replace with your system architecture (i386, x86_64, etc...)!
• Rebuild the kernel roll
  # cd rocks/src/roll/kernel
# make roll
• Once the roll is built successfully, a file named kernel-*.iso should exist in rocks/src/roll/kernel. Try mounting it some place, for example in /mnt/cdrom:
  # mount -o loop kernel*.iso /mnt/cdrom
• Check the built vmlinuz file if this is the newer version already. vmlinuz is the linux kernel itself that will be used during the installation
  # strings /mnt/cdrom/isolinux/vmlinuz | grep "2.6"
  Among the early lines of output, you should see the kernel version. See if it matches your desired version.
• Next, check if the kernel RPM is updated. This can be done by
  # find /mnt/cdrom -name "kernel*.rpm"
• Unmount the cd image when finished
  # umount /mnt/cdrom

Links: GB's answer at ROCKS mailing list archive