Introduction
After installing a new kernel, most likely via yum, you must edit yaboot to include this new kernel in the boot menu.
Execution
- Find the filenames for the new kernel components:
kernels are installed in /boot, so list the files there and locate the latest 'vmlinux'.
[root@aj-pb ~]# ls -lt /boot/ total 13028 -rwxr-xr-x 1 root root 4748956 Jul 28 11:31 vmlinux-2.6.12-3.ydl.1 -rw-r--r-- 1 root root 37494 Jul 28 11:21 config-2.6.12-3.ydl.1 -rw-r--r-- 1 root root 871388 Jul 28 11:21 System.map-2.6.12-3.ydl.1 -rw-r--r-- 1 root root 1355066 Jul 28 11:21 initrd-2.6.12-3.ydl.1.img -rw-r--r-- 1 root root 609863 Jun 10 16:22 initrd-2.6.12-0.ydl.4.img -rwxr-xr-x 1 root root 4753052 May 24 11:27 vmlinux-2.6.12-0.ydl.4 -rw-r--r-- 1 root root 37387 May 24 11:18 config-2.6.12-0.ydl.4 -rw-r--r-- 1 root root 870981 May 24 11:18 System.map-2.6.12-0.ydl.4
... I used 'ls -lt' to produce a detailed listing, sorted by creation time. You can see that the 2.6.12-3.ydl.1 version of vmlinux, config, System.map, and initrd are the most recent set to be installed.
- Modify yaboot.conf:
nano /etc/yaboot.conf [ENTER]
- Create a new entry at the bottom for your new kernel. It is easiest to copy and paste an existing entry and modify a few lines
(image=, label=, initrd=). Since the latest kernel I installed was 2.6.12-3.ydl.1, I want to make sure the files for initrd and
image are correct, and give this new entry a unique label:
image=/boot/vmlinux-2.6.12-3.ydl.1 label=linux-test read-only initrd=/boot/initrd-2.6.12-3.ydl.1.img root=/dev/hda4 append="rhgb quiet"
- Commit the changes:
ybin [ENTER]
- Reboot.
This HOWTO was created by AJ Hawks, Terra Soft Solutions