#!/bin/sh # # A simple script to remove old kernel files/modules. # Brought to you by yours truly Juan RP in the Public Domain. # : ${progname:=$(basename $0)} usage() { cat <<_EOF Usage: $progname [] Targets: list Lists old installed kernels. rm Remove kernel or all old kernels. Example: $ $progname list $ $progname rm 2.6.39.2 _EOF exit 1 } list_kernels() { local k kpkg installed kver skip _f for k in /lib/modules/*; do _f=$(basename $k) kver=$(echo ${_f}|sed -e 's|-rc|rc|') for kpkg in kernel kernel-snapshot; do installed=$(xbps-uhelper -r / version $kpkg) if [ "$installed" = "${kver}" ]; then skip=1 break fi done if [ -n "$skip" ]; then unset skip continue fi echo "${_f}" done } run_hooks() { local dir="$1" local kver="$2" local d for d in /etc/kernel.d/${dir}/*; do [ ! -x "$d" ] && continue echo "Running ${dir} kernel hook: $(basename $d)..." $d kernel $kver done } remove_kernel() { local rmkver="$1" local installed f kfile if [ ! -f /boot/vmlinuz-${rmkver} -a ! -d /lib/modules/${rmkver} ]; then echo "Kernel ${rmkver} not installed." exit 0 fi installed=$(xbps-uhelper -r / version $rmkver) if [ -n "$installed" ]; then echo "Kernel $rmkver is currently installed." exit 0 fi # Execute pre-remove kernel hooks. run_hooks pre-remove $rmkver # Remove kernel files in /boot. for f in config System.map vmlinuz; do kfile="/boot/${f}-${rmkver}" [ ! -f "${kfile}" ] && continue echo "Removing ${kfile}..." rm -f ${kfile} done # Remove kernel modules if [ -d "/lib/modules/${rmkver}" ]; then echo "Removing /lib/modules/${rmkver}..." rm -rf /lib/modules/${rmkver} fi # Execute post-remove kernel hooks. run_hooks post-remove $rmkver } if [ "$1" = "list" ]; then list_kernels elif [ "$1" = "rm" ]; then if [ -z "$2" ]; then usage elif [ "$2" = "all" ]; then kernels=$(list_kernels) for k in ${kernels}; do echo "Removing kernel $k files ..." remove_kernel "$k" done else remove_kernel "$2" fi else usage fi exit 0