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Julien Dessaux 2021-03-11 23:15:31 +01:00
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content/blog/miscellaneous/clean-old-centos-kernels.md
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---
title: "Clean old centos kernels"
linkTitle: "Clean old centos kernels"
date: 2016-02-03
description: >
Clean old centos kernels
description: Clean old centos kernels
tags:
- Centos
- rhel
---
## The problem
Centos kernels tend to accumulate unless you clean them regularly.
## The solution
There is a setting in `/etc/yum.conf` that does exactly that : `installonly_limit=`. The value of this setting is the number of older kernels that are kept when a new kernel is installed by yum. If the number of installed kernels becomes greater than this, the oldest one gets removed at the same time a new one is installed.
This cleaning can also be done manually with a command that belongs to the yum-utils package : `package-cleanup –oldkernels –count=2`