Remove all unused kernels with apt-get

sudo aptitude remove -P $(dpkg -l|awk '/^ii linux-image-2/{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)}')

Same as 7272 but that one was too dangerous so i added -P to prompt users to continue or cancel Note the double space: "...^ii␣␣linux-image-2..." Like 5813, but fixes two bugs: [1]This leaves the meta-packages 'linux-headers-generic' and 'linux-image-generic' alone so that automatic upgrades work correctly in the future. [2]Kernels newer than the currently running one are left alone (this can happen if you didn't reboot after installing a new kernel).

-1

By: Bonster

2011-04-25 05:19:57

awk sed sudo Debian Linux awk grep kernel dpkg aptitude

11 Alternatives + Submit Alt

Remove all unused kernels with apt-get

This should do the same thing and is about 70 chars shorter. Show Sample Output
This is sample output - yours may be different.
```
The following packages will be REMOVED:
  linux-image-2.6.32-3-amd64 linux-image-amd64 
0 packages upgraded, 0 newly installed, 2 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 99.6MB will be freed.
Would download/install/remove packages.

# `uname -r` = "2.6.34-dbb-deb"
```
8

aptitude remove $(dpkg -l|egrep '^ii linux-(im|he)'|awk '{print $2}'|grep -v `uname -r`)

dbbolton · 2010-06-10 21:23:00 11
Remove all unused kernels with apt-get

Note the double space: "...^ii␣␣linux-image-2..." Like 5813, but fixes two bugs: [1]This leaves the meta-packages 'linux-headers-generic' and 'linux-image-generic' alone so that automatic upgrades work correctly in the future. [2]Kernels newer than the currently running one are left alone (this can happen if you didn't reboot after installing a new kernel). I'm bummed that this took 228 characters. I'd like to see a simpler version. Show Sample Output
This is sample output - yours may be different.
```
The following packages will be REMOVED:  
  linux-headers-2.6.32-24 linux-headers-2.6.32-24-generic linux-headers-2.6.32-25 linux-headers-2.6.32-25-generic linux-headers-2.6.35-22 
  linux-headers-2.6.35-22-generic linux-image-2.6.32-24-generic linux-image-2.6.32-25-generic linux-image-2.6.35-22-generic 
0 packages upgraded, 0 newly installed, 9 to remove and 0 not upgraded.
Need to get 0B of archives. After unpacking 566MB will be freed.
```
7

aptitude remove $(dpkg -l|awk '/^ii linux-image-2/{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)}')

__ · 2010-12-11 11:38:15 7
Remove all unused kernels with apt-get

This will remove all installed kernels on your debian based install, except the one you're currently using. From: http://tuxtweaks.com/2009/12/remove-old-kernels-in-ubuntu/comment-page-1/#comment-1590
This is sample output - yours may be different.
4

dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/$.*$-$[^0-9]\+$/\1/")"'/d;s/^[^ ]* [^ ]* $[^ ]*$.*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge

mitzip · 2010-06-10 20:33:32 6
Remove all unused kernels with apt-get

Remove old kernels (*-generic and *-generic-pae) via apt-get on debian/ubuntu based systems. Tested on ubuntu 10.04 - 12.04.
This is sample output - yours may be different.
3

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 7
Remove all unused kernels with apt-get

A little aptitude magic. Note: this will remove images AND headers. If you just want to remove images: aptitude remove ?and(~i~nlinux-im ?not(~n`uname -r`)) I used this in zsh without any problems. I'm not sure how other shells will interpret some of the special characters used in the aptitude search terms. Use -s to simulate.
This is sample output - yours may be different.
2

aptitude remove ?and(~i~nlinux-(im|he) ?not(~n`uname -r`))

dbbolton · 2010-06-11 22:57:09 7

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