[CentOS] Uniprocessor kernel booted after YUM update

Karanbir Singh mail-lists at karan.org
Wed Sep 21 10:54:03 UTC 2005

Dr R L Oswald wrote:
> Mystery Solved!
> Karanbir Singh gave a clue by suggesting the dsiabling of the splash 
> screen at which point the magic word "LILO" flashed up briefly on the 
> screen.
> It appears that the machines which were affected all had lilo installed 
> but not configured as bootloader. These machines are all configured 

If the word LILO pop'ed up - then it is setup to be the bootloader. And 
would explain why changes to grub.conf were having no effect.

> identically using a kickstart script. This script does not have lilo 
> enabled in the bootloader. How they actually came to have lilo installed 
> is a bit of a mystery as all the rest plainly do not have it. However 

try "rpm -qa --last"

That should give you an idea as to when the packages were installed.

> when the kernel update was installed by yum, it looked for a bootloader 
> & picked on lilo instead of grub in machines with lilo installed.
> I the log files of affected systems:
> Kernel Updated/Installed, checking for bootloader
> Lilo found - adding kernel to lilo and making it the default

If you are interested in the process, look at /sbin/new-kernel-pkg - 
thats the script called to install / remove config's for a kernel package.

- K
Karanbir Singh : http://www.karan.org/ : 2522219 at icq

More information about the CentOS mailing list