Remove old kernels and header data in Ubuntu/Debian

sudo apt-get -y purge $(dpkg --get-selections | awk '((/^linux-/) && (/[0-9]\./) && (!/'"`uname -r | sed "s/-generic//g"`"'/)) {print $1}')
Removes all kernels and corresponding packages except of the one you're currently using.

0
By: dakira
2011-08-04 14:02:02

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  • Removes piling kernels from /boot, save the current one. This command DOES NOT remove the 'linux-image-generic' package, so you'll continue getting kernel updates


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  • Remove old kernels (*-generic and *-generic-pae) via apt-get on debian/ubuntu based systems. Tested on ubuntu 10.04 - 12.04.


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    sudo apt-get remove $(dpkg -l|awk '/^ii linux-image-/{print $2}'|sed 's/linux-image-//'|awk -v v=`uname -r` 'v>$0'|sed 's/-generic*//'|awk '{printf("linux-headers-%s\nlinux-headers-%s-generic*\nlinux-image-%s-generic*\n",$0,$0,$0)}')
    mtron · 2012-08-15 10:02:12 1

What Others Think

Neat. openSUSE is working on doing this with multiversion, so you can do this automated with each update and keep even some that you want. http://lizards.opensuse.org/tag/opensuse-12-1/ for more info
houghi · 358 weeks and 3 days ago

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Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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