Last active
May 19, 2022 20:18
-
-
Save franciscocpg/ae1f5abb3e7be005b080 to your computer and use it in GitHub Desktop.
This scripts remove old kernels and should keep the latest 2 kernels (or you can pass the flag --keep n to keep more)
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/bash | |
# Install purge-old-kernels script for purging old kernels from apt-get | |
# This utility was extracted from bikeshed (sudo apt-get install bikeshed, http://packages.ubuntu.com/precise/misc/bikeshed) | |
FILE_NAME=purge-old-kernels | |
BIN_FOLDER=/usr/bin | |
echo -e '#!/bin/sh | |
# | |
# purge-old-kernels - remove old kernel packages | |
# Copyright (C) 2012 Dustin Kirkland <kirkland@ubuntu.com> | |
# | |
# Authors: Dustin Kirkland <kirkland@ubuntu.com> | |
# Kees Cook <kees@ubuntu.com> | |
# | |
# This program is free software: you can redistribute it and/or modify | |
# it under the terms of the GNU General Public License as published by | |
# the Free Software Foundation, version 3 of the License. | |
# | |
# This program is distributed in the hope that it will be useful, | |
# but WITHOUT ANY WARRANTY; without even the implied warranty of | |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
# GNU General Public License for more details. | |
# | |
# You should have received a copy of the GNU General Public License | |
# along with this program. If not, see <http://www.gnu.org/licenses/>. | |
# Ensure we'"'"'re running as root | |
if [ "$(id -u)" != 0 ]; then | |
echo "ERROR: This script must run as root. Hint..." 1>&2 | |
echo " sudo $0 $@" 1>&2 | |
exit 1 | |
fi | |
# NOTE: This script will ALWAYS keep the currently running kernel | |
# NOTE: Default is to keep 2 more, user overrides with --keep N | |
KEEP=2 | |
# NOTE: Any unrecognized option will be passed straight through to apt-get | |
APT_OPTS= | |
while [ ! -z "$1" ]; do | |
case "$1" in | |
--keep) | |
# User specified the number of kernels to keep | |
KEEP="$2" | |
shift 2 | |
;; | |
*) | |
APT_OPTS="$APT_OPTS $1" | |
shift 1 | |
;; | |
esac | |
done | |
# Build our list of kernel packages to purge | |
CANDIDATES=$(ls -tr /boot/vmlinuz-* | head -n -${KEEP} | grep -v "$(uname -r)$" | cut -d- -f2- | awk '"'"'{print "linux-image-" $0 " linux-headers-" $0}'"'"' ) | |
for c in $CANDIDATES; do | |
dpkg-query -s "$c" >/dev/null 2>&1 && PURGE="$PURGE $c" | |
done | |
if [ -z "$PURGE" ]; then | |
echo "No kernels are eligible for removal" | |
exit 0 | |
fi | |
apt-get $APT_OPTS remove --purge $PURGE' > "$FILE_NAME" | |
sudo chown root:root $FILE_NAME | |
sudo chmod 755 $FILE_NAME | |
sudo mv $FILE_NAME $BIN_FOLDER |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Remote install
bash <(curl -s https://gist.githubusercontent.com/franciscocpg/ae1f5abb3e7be005b080/raw/)
and then
sudo purge-old-kernels