Create a gist now

Instantly share code, notes, and snippets.

What would you like to do?
#!/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
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 $1"
shift 1
;;
esac
done
# Build our list of kernel packages to purge, make sure we exclude the current running kernel
current="$(uname -r)"
VERSIONS=$(ls -f /boot/vmlinuz-* | grep -v "$current$" | sed -e "s/[^\-]*-//" -e "s/-[^\-]*$//" | sort -rh)
count=0
for v in $VERSIONS; do
count=$((count+1))
if [ $count -le $KEEP ]; then
continue
fi
for k in linux-image linux-headers linux-signed-image linux-image-virtual; do
for f in generic lowlatency; do
dpkg-query -s "$k-$v-$f" >/dev/null 2>&1 && PURGE="$PURGE $k-$v-$f"
done
done
done
if [ -z "$PURGE" ]; then
echo "No kernels are eligible for removal"
exit 0
fi
apt $APT_OPTS remove --purge $PURGE && \
apt-get $APT_OPTS autoremove --purge
@tomoattori

This comment has been minimized.

Show comment Hide comment
@tomoattori

tomoattori Jan 12, 2017

オリジナルはこちら。

byobu/purge-old-kernels at master · dustinkirkland/byobu
https://github.com/dustinkirkland/byobu/blob/master/usr/bin/purge-old-kernels

ubuntu 14.04でも動作するように、以下の変更を実施。
 apt $APT_OPTS autoremove --purge
  ↓
 apt-get $APT_OPTS autoremove --purge

またパッケージ削除を中止したときにもautoremoveが実行されてしまう問題に対応するため、以下の変更を実施。
 apt $APT_OPTS remove --purge $PURGE
  ↓
 apt $APT_OPTS remove --purge $PURGE && \

Owner

tomoattori commented Jan 12, 2017

オリジナルはこちら。

byobu/purge-old-kernels at master · dustinkirkland/byobu
https://github.com/dustinkirkland/byobu/blob/master/usr/bin/purge-old-kernels

ubuntu 14.04でも動作するように、以下の変更を実施。
 apt $APT_OPTS autoremove --purge
  ↓
 apt-get $APT_OPTS autoremove --purge

またパッケージ削除を中止したときにもautoremoveが実行されてしまう問題に対応するため、以下の変更を実施。
 apt $APT_OPTS remove --purge $PURGE
  ↓
 apt $APT_OPTS remove --purge $PURGE && \

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment