How to remove old kernel?

[zhumingvictor]

I have just upated my kernel, and in the boot list there are two FC4 on the list. One for the old version one for the new kernel. How Do I remove the old version?

[smfinley]

Originally Posted by zhumingvictor

I have just upated my kernel, and in the boot list there are two FC4 on the list. One for the old version one for the new kernel. How Do I remove the old version?

This works for FC4 as well as FC3.

[rega451]

A simple way to remove an unwanted kernel is: yum remove <old_kernel_version>. Do this as su -
To find out the kernel versions are on your computer do: rpm -q kernel.

Here is an example of how you would remove kernel-2.6.12-1.1387_FC4:

[user@localhost ~]$ rpm -q kernel
kernel-2.6.12-1.1387_FC4
kernel-2.6.12-1.1390_FC4
[user@localhost ~]$ su -
Password:
[root@localhost ~]# yum remove kernel-2.6.12-1.1387_FC4

A lot of users perefer to keep at least the previous version of the kernel just in case something doesn't work right in the newer kernel update but it isn't required.

[imdeemvp]

It is recommended to keep at least 2 kernels just in case you run into problems.

[mfauzirahman]

Hi All,

I did try to use step below to remove old kernel but failed.
Please guide me how to do it


[Fauzi@localhost ~]$ rpm -q kernel
kernel-2.6.23.1-42.fc8
kernel-2.6.25.10-47.fc8
[Fauzi@localhost ~]$ su
Password:
[root@localhost Fauzi]# yum remove kernel-2.6.23-1.42_FC8
Setting up Remove Process
livna 100% |=========================| 2.1 kB 00:00
fedora 100% |=========================| 2.1 kB 00:00
updates 100% |=========================| 2.3 kB 00:00
No Match for argument: kernel-2.6.23-1.42_FC8
No Packages marked for removal

[briantan]

Originally Posted by mfauzirahman

Hi All,

I did try to use step below to remove old kernel but failed.
Please guide me how to do it


[Fauzi@localhost ~]$ rpm -q kernel
kernel-2.6.23.1-42.fc8
kernel-2.6.25.10-47.fc8
[Fauzi@localhost ~]$ su
Password:
[root@localhost Fauzi]# yum remove kernel-2.6.23-1.42_FC8
Setting up Remove Process
livna 100% |=========================| 2.1 kB 00:00
fedora 100% |=========================| 2.1 kB 00:00
updates 100% |=========================| 2.3 kB 00:00
No Match for argument: kernel-2.6.23-1.42_FC8
No Packages marked for removal

Case sensitive, or use wildcard
# yum remove kernel-*23.1-42.fc8*

This will remove kernel-devel as well.