mdadm/mkinitrd-setup.sh

90 lines
2.0 KiB
Bash

#!/bin/bash
#
#%stage: softraid
#
mdblockdev=
# Full mdadm.conf generated by mdadm.
# Contains all created MD RAIDs
mdadm_conf=$(mdadm --examine --brief --scan)
cont_list=
md_devs=
# blockdev contains real devices (/dev/X) for root, resume, journal, dumb
for bd in $blockdev ; do
is_part_dev=false
case $bd in
/dev/md[0-9]*p[0-9]*)
# Partitionable MD RAID. This is partition on RAID. Get the RAID
bd=${bd%%p[0-9]*}
is_part_dev=true
;;
/dev/md[0-9]*)
;;
*)
mdblockdev="$mdblockdev $bd"
continue
;;
esac
# Check if this device is already added (possible for partitionable).
md_dev=${bd##/dev/}
dup_found=false
for dup in $md_devs; do
if [ x"$dup" = x"$md_dev" ]; then
dup_found=true
break
fi
done
if $dup_found; then
if ! $is_part_dev; then
echo "setup-md.sh: $md_dev found multiple times" >&2
fi
continue
fi
mdconf=$(mdadm -Db "$bd")
if test -z "$mdconf"; then
mdblockdev="$mdblockdev $bd"
continue
fi
md_tmpblockdev=$(mdadm -Dbv $bd | sed -n "1D;s/,/ /g;s/^ *devices=//p")
mdblockdev="$mdblockdev $md_tmpblockdev"
md_devs="$md_devs $md_dev"
container=$(echo "$mdconf" | sed -rn 's/.* container=([^ ]*) .*/\1/p')
for cnt in $cont_list; do
if [ x"$container"= x"$cnt" ]; then
container=
break
fi
done
case "$container" in
"")
;;
/dev/*)
mdconf="$(mdadm -Db "$container")\\n$mdconf"
;;
[0-9a-f]*[0-9a-f])
mdconf="$(mdadm -Ebs | grep "UUID=$container")\\n$mdconf"
;;
*)
echo "unrecognized container for $md_dev: $container"
;;
esac
eval md_conf_${md_dev}=\"$mdconf\"
root_md=1
done
# Any 'md' device is replaced by it's component disks.
blockdev="$mdblockdev"
if [ -n "$root_md" ] ; then
need_mdadm=1
echo -n "" > $tmp_mnt/etc/mdadm.conf
for md in $md_devs; do
eval echo -e \"\$md_conf_$md\" >> $tmp_mnt/etc/mdadm.conf
done
fi
save_var need_mdadm
save_var root_md