purge-old-kernels

Remove old kernels

$ purge-old-kernels

$ purge-old-kernels --keep [2]

$ purge-old-kernels --dry-run

purge-old-kernels [options]

purge-old-kernels removes old Linux kernel packages from Ubuntu and Debian systems to reclaim disk space, particularly in the /boot partition. Over time, kernel upgrades accumulate previous versions that are no longer needed, and this utility automates their safe removal.
By default the tool keeps the currently running kernel and one or two previous versions as fallback, configurable with the --keep option. The --dry-run flag previews which packages would be removed without making changes. The command is part of the byobu package on Ubuntu systems and requires root privileges to uninstall kernel packages through the system package manager.

--keep N

Number of kernels to keep.

Show what would be removed.

Assume yes.

Ubuntu/Debian specific. Requires root. Keep at least 2 kernels.

purge-old-kernels was created for Ubuntu kernel package cleanup.

apt(8), dpkg(1), uname(1)