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|
#!/bin/sh
# check-kernel #VERSION#
verwendung() {
>&2 echo 'check-kernel checks if the installed kernel is currently running'
>&2 echo ''
>&2 echo 'Usage: check-kernel [OPTIONS]'
>&2 echo ' -r,--reboot reboot system if installed kernel is not yet running'
>&2 echo \
'#HELPTEXT# #'
exit 1
}
eval set -- "$(
getopt -o r \
--long reboot \
--long help \
--long version \
-n "$(basename "$0")" -- "$@" \
|| echo verwendung
)"
reboot=false
while true; do
case "$1" in
-r|--reboot)
reboot=true
;;
--help)
verwendung 0
;;
--version)
echo '#VERSION#'
exit 0
;;
--)
shift
break
;;
*)
>&2 echo "FEHLER: Verstehe Option \"$1\" doch nicht! Ich beende."
verwendung
;;
esac
shift
done
unset installed
if which pacman >/dev/null 2>&1; then
# arch linux
running=$(
uname -r | \
sed '
s|-ARCH$||
s|-arch|-|
'
)
installed=$(
{
pacman -Q linux 2>/dev/null || \
pacman -Q | \
grep '^linux-' | \
sed '
s/-headers / /
' | \
uniq -d
} | \
cut -d' ' -f2 | \
sort -V | \
tail -n1
)
elif which apt >/dev/null 2>&1; then
# debian
running=$(
uname -r
)
installed=$(
dpkg-query -W 'linux-image-*' | \
cut -f1 | \
sed '
s|^linux-image-||
' | \
grep -x '\([0-9.]\+-\)\{2\}[^-]\+' | \
sort -V | \
tail -n1
)
else
running=$(
uname -r
)
installed=$(
ls /boot | \
sed -n '
s/^vmlinuz-\([0-9.]\+\)$/\1/
T
p
' | \
sort -V | \
tail -n1
)
fi
installed=$(
printf '%s\n' "${installed}" | \
sed '
s/\(\.0\)\+$//
'
)
running=$(
printf '%s\n' "${running}" | \
sed '
s/\(\.0\)\+$//
'
)
if [ -z "${installed}" ] || \
[ "$(echo "${installed}" | wc -l)" -ne 1 ]; then
>&2 printf 'Cannot determin installed kernel.\n'
exit 2
fi
if [ "${running}" = "${installed}" ]; then
if ! ${reboot}; then
>&2 printf 'The installed kernel (%s) is currently running.\n' \
"${installed}"
fi
exit 0
else
>&2 printf 'The installed (%s) and running kernel (%s) differ.\n' \
"${installed}" \
"${running}"
if ${reboot}; then
>&2 printf 'Press enter to reboot ...'
read s
if [ -z "${s}" ]; then
reboot
fi
else
exit 1
fi
fi
|
