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# Wipes any traces of an active MD on the given device
device_remove_md() {
local dev md_dev md_devs part used_parts type removed_devices confirm code
[ -f /var/lib/partman/md ] || return 0
dev="$1"
cd $dev
realdev=$(mapdevfs "$(cat $dev/device)")
md_devs=$(sed -n -e \
"s,^\(md[0-9]*\) : \(active raid[0-9]*\|inactive\) .*${realdev#/dev/}[^[]*\[[0-9]\].*,/dev/\1,p" \
/proc/mdstat)
if [ -z "$md_devs" ]; then
return 0
fi
used_parts=""
removed_devices=""
for md_dev in $md_devs; do
used_parts="${used_parts:+$used_parts }$(
mdadm -Q --detail $md_dev |
grep -E "^[[:space:]]*[0-9].*(active|spare)" |
sed -e 's/.* //')"
type="$(mdadm -Q --detail $md_dev |
sed -n -e 's/^.*Raid Level : \(.*\)/\1/p')"
removed_devices="${removed_devices:+$removed_devices, }${md_dev#/dev/} ($type)"
done
db_fget partman-md/device_remove_md seen
if [ $RET = true ]; then
db_get partman-md/device_remove_md
confirm=$RET
else
db_subst partman-md/device_remove_md REMOVED_DEVICES "$removed_devices"
db_subst partman-md/device_remove_md REMOVED_PARTITIONS \
"$(echo $used_parts | sed -e 's/ /, /')"
db_input critical partman-md/device_remove_md
db_go || return 1
db_get partman-md/device_remove_md
confirm=$RET
db_reset partman-md/device_remove_md
fi
if [ "$confirm" != true ]; then
return 255
fi
if [ -e /lib/partman/lib/lvm-remove.sh ]; then
. /lib/partman/lib/lvm-remove.sh
for md_dev in $md_devs; do
device_remove_lvm "$md_dev"
code=$?
# Ignore "ok" and "restart" return codes
if [ $code != 0 ] && [ $code != 99 ]; then
return $code
fi
done
fi
for md_dev in $md_devs; do
logger -t md-remove "Removing $md_dev ($used_parts)"
log-output -t md-remove mdadm --stop $md_dev || return 1
done
for part in $used_parts; do
log-output -t md-remove mdadm \
--zero-superblock --force $part || return 1
done
# Please restart partman
return 99
}
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