Booting more than one kernel on SUSE Linux Enterprise Server
This document (3086701) is provided subject to the disclaimer at the end of this document.
Novell SUSE Linux Enterprise Server 9
Novell SUSE Linux Enterprise Server 8
How to update the kernel and save the previously installed kernel
- Run YOU to update the linux server, but do not do an automatic update, select the option to manually select packages.
- Select all of the desired packages minus the linux kernel packages.
- Finish the update of the linux system.
- Go to the Patch Database site, https://support.novell.com/linux/psdb, and download the kernel packages separately.
- Install the kernel rpm packages from the commandline with the
following parameters:rpm -ivh --force packagename.rpmNote: Do not use the -F option. This option will remove previously installed kernels.
- Next change to the /boot directory and review
the symbolic links to make sure they are correct. The install
script should have modified initrd and vmlinuz so they point to the
new kernel:initrd ->initrd-2.6.5-7.283-default
vmlinuz ->vmlinuz-2.6.5-7.283-defaultAlong with two new symbolic links (initrd.previous andvmlinuz.previous) pointing to the previous kernel:initrd.previous ->initrd-2.6.5-7.244-defaultTo create the symbolic links manually use the following syntax:
vmlinuz.previous ->vmlinuz-2.6.5-7.244-defaultln -s vmlinuz-2.6.5-7.244-default vmlinuz.previous
ln -s initrd-2.6.5-7.244-default initrd.previous
- Next edit the /boot/grub/menu.lst file
and put an entry in here for the previous kernel. You can copy the
current entry for the current kernel you are using and modify
it. The end result should look similar to:###Don't change this comment - YaST2 identifier: Original name: linux###
title Linux Previous
kernel (hd0,1)/boot/vmlinuz.previous root=/dev/sda2 vga=0x333 selinux=0 splash=silent resume=/dev/sda1 elevator=cfq showopts
- Reboot the server and validate that the previous kernel shows
up in the boot menu and that both kernels are bootable.
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- Document ID:3086701
- Creation Date:04-JAN-07
- Modified Date:27-APR-12
- SUSESUSE Linux Enterprise Server
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