We use cookies
We use cookies to optimize our website. By continuing to browse the site, you agree to our use of cookies.
New design
Control panel
  • Русский
  • Українська
  • English
  • UAH
  • USD
  • RUB
  • EUR
  • 0-800-307-307 Hotline
  • +38 (044) 392-74-33 Kiev
  • +38 (057) 728-39-00 Kharkiv
  • +38 (056) 794-38-31 Dnipro
  • +38 (032) 229-58-93 Lviv
  • +38 (048) 738-57-70 Odessa
  • +38(093) 170-15-42  Life
  • +38 (067) 400-88-44 Kievstar
  • +1(888)393-24-51  USA, Toll free
  • +44(131)507-01-14  Great Britain
  • +7 (499) 348-28-61 Moscow

4.4.10. Removing old kernels on CentOS and Fedora (freeing up space in / boot)

Attention!

The kernel removal procedure is irreversible. Before uninstalling, be sure to test the current kernel for performance.

You can view a list of all installed kernels using the command:

rpm -q kernel

Install yum-utils:

yum install yum-utils -y

Remove unnecessary kernels by running:

package-cleanup --oldkernels --count=2

Where --count=2 - the number of system cores to be left (in the example - 2).

To automatically remove kernels during an update, you must change the parameter installonly_limit in /etc/yum.conf:

installonly_limit=3

Attention!

Cannot be greatly reduced installonly_limit (especially below 2), as this can provoke situations in which the server will stop working after the update.