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how_to_delete_old_unused_kernels

To find out the current version of Linux kernel running on your system, use the following command.

$ uname -sr

Linux 4.12.0-041200-generic

To list all installed kernels on your system, issue this command.

$ dpkg -l | grep linux-image | awk '{print$2}'

linux-image-4.12.0-041200-generic
linux-image-4.8.0-22-generic
linux-image-extra-4.8.0-22-generic
linux-image-generic

Run the commands below to remove a particular linux-image along with its configuration files, then update grub2 configuration, and lastly reboot the system.

$ sudo apt remove --purge linux-image-4.4.0-21-generic
$ sudo update-grub2
$ sudo reboot

And that's it.

how_to_delete_old_unused_kernels.txt · Last modified: 2024/03/12 21:23 by 127.0.0.1