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Old 11-17-2005, 02:51 AM   #1
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Registered: Nov 2005
Distribution: Ubuntu 10.4
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Update kernel?

Hi.. I reasently updated my kernel from FC4 to But now I cant load some of my modules..
Is it possibly to remove the new kernel and just use 13.1 as default again? And is that a bad idea?

In the future when I run: yum update
is it possible to add a parameter so my kernel isnt updated?

Old 11-17-2005, 03:25 AM   #2
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Please forgive my ignorance. I have not yet used any version of FC.

First question: When yum updates a kernel, does it also run make modules and make modules_install?

Second question: have you looked into the /boot directory to see if the original vmlinuz is still there?

Third question: have you inspected grub.conf to see if there is still an entry pointing to the original kernel?

Fourth question: have you looked into /lib/modules to see if you have a parallel set of modules; the original and the new.

If the original kernel and lib/modules are still there, then you should be able to edit grub.conf to point to the original compressed kernel image and boot into the original kernel. Then delete all of the new stuff and try again.
Old 11-17-2005, 03:38 AM   #3
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First of all, when Yum installs a new kernel in Fedora Core, it doesn't remove the old one; so you can always choose to boot an older kernel in the menu when you boot up.

What kind of problems are you having with the new kernel? If you use any separate kernel modules like NTFS or 3D graphics card drivers, you will need to install them again for the new kernel since they are compiled for specific kernels.
Old 11-17-2005, 04:49 AM   #4
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thx for the answers.. but I found my answer in another thread in another forum:

Anyway, removing a kernel can be done easily:
- issue:

rpm -qa | grep kernel

to list all the kernel (and kernel related) rpms on your system, then:

yum remove <package_1> <package_2>...

to remove the unwanted ones.

If you don't want yum to update your kenrel anymore, just add the --exclude=kernel* option to your yum command line.


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