How to remove my previous Kernal after Kernel Update?

seow_ming · 07-10-2005, 01:29 AM

Dear all,

I need your help here about how to remove my previous Linux Kernel from the Booting screen once i on my computer?

I'm using FC2 now and just updated my Kernel from and older version to a newer one. And after I reboot my computer. I found out that, Now i got two version of kernel for me to choose to boot for. Can somebody help? How can i remove the older one? Thanks.

poopoo · 07-10-2005, 01:48 AM

1 Make a back up of lilo.conf or grub.conf depend on your system.

2 To remove the kernel option from lilo or grub , you can modify /etc/lilo.conf (or /etc/grub.conf) then run lilo command as root.

3 To remove actual kernel , delete System.map-kernelversion , vmlinuz-kernelversion , bzImage-kernelversion . Before you reboot make sure there is no broken link in /boot dir and image option is pointing correctly .

4 If you accidently srew things up, use a bootable cd and change it back. good luck

Good luck
Hung Nguyen

seow_ming · 07-10-2005, 09:24 AM

Dear poopoo,

Thanks a lot. I followed what you showed me and it's really works!! Thankyou so much!

abisko00 · 07-10-2005, 09:50 AM

Just an additional note: If your new kernel works properly and you deleted the old one like poopoo explained, you might have some unrequired kernel modules in /lib/modules/<old-version>. To safe some space, you could delete them as well.

Boow · 07-10-2005, 04:20 PM

Since hes using fedora couldn't he just use rpm -e kernel-whatever if he removes its by hand it remains in the rpm database.

reddazz · 07-11-2005, 02:19 AM

Quote:

Originally posted by Boow
Since hes using fedora couldn't he just use rpm -e kernel-whatever if he removes its by hand it remains in the rpm database.

Yeah, the method posted by poopoo is not good if you are removing a kernel installed via rpm. You are better of doing,

Code:

$rpm -qa | grep -i kernel

A list of installed kernels will be listed. Remove the one you don't want by doing

Code:

#rpm -e kernel-version

Running the command above also removes the kernel from the list of available kernels in grub so you don't have to edit grub manually.

seow_ming · 07-12-2005, 10:29 AM

Wow,~~
You all are so helpful!! The last way really works and really helped me to remove everything automatically! Thanks everyone.

Adam