Rewrote the whole website to get rid on a heavy theme
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content/blog/miscellaneous/clean-old-centos-kernels.md
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title: "Clean old centos kernels"
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linkTitle: "Clean old centos kernels"
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date: 2016-02-03
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description: >
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Clean old centos kernels
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---
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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.
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This cleaning can also be done manually with a command that belongs to the yum-utils package : `package-cleanup –oldkernels –count=2`
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