Guide: Remove Old Kernel in Fedora

This is quick guide howto delete/remove/clean old kernels on Fedora, CentOS, Red Hat (RHEL). Normally reason why you maybe want remove kernels is limited disk space, example on VPS servers and laptop. This is very easy task, you need yum-utils package.

1. Check Installed Kernels

rpm -q kernel
kernel-2.6.32-279.el6.x86_64
kernel-2.6.32-279.2.1.el6.x86_64
kernel-2.6.32-279.5.2.el6.x86_64
kernel-2.6.32-279.9.1.el6.x86_64

2. Delete / Remove Old Kernels

## Install yum utils ##
yum install yum-utils
 
## Package-cleanup set count as how many old kernels you want left ##
package-cleanup --oldkernels --count=2

3. Make Amount of Installed Kernels Permanent

Edit /etc/yum.conf and set installonly_limit:

installonly_limit=2

Guide: Remove Old Kernel in Fedora

1. Check Installed Kernels

2. Delete / Remove Old Kernels

3. Make Amount of Installed Kernels Permanent

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