How to Free Up Space in /boot on CentOS Server

How to Free Up Space in /boot on CentOS Server

By default the /boot partition is quite small, in some cases it could be only a few megabytes. If this is the case with when you try to update your kernel, you could get an error complaining about not enough free space on /boot.

Here's an easy way on how to free up some space so that you could complete your kernel update as normal.

  • Install yum-utils
yum install yum-utils
  • Now we can clean some old kernel packages, to be on the safe side I would recommend keeping the --count to at least 2
package-cleanup --oldkernels --count=2
  • This is pretty much it, you can then go ahead and update your kernel as normal
yum -y update kernel kernel-headers

Please note that you would need to reboot your server in order for the change to take effect.

To check your system information you could then simply run:

uname -a

Hope that this helps.



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