[CentOS] Uniprocessor kernel booted after YUM update

Dr R L Oswald L.Oswald at cranfield.ac.uk
Wed Sep 21 16:32:02 UTC 2005

Karanbir Singh wrote:

> 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.
Now I knoiw what I am looking for, I found that in fact only three 
machines were affected & we have now recovered from the situation (& 
avoided it happening again)

>> 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.

Well all at time of installation of Centos 3.5, I still don't understand 
where lilo came from!

>> 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.

OK Thanks for the info & help I guess we can close this discussion now :-)


> - K

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