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#!/bin/sh
# This script sets method "zfs" for all partitions that have the zfs
# flag set. It also discovers the logical volumes and creates in them
# a loop partition table and partition.
. /lib/partman/lib/base.sh
. /lib/partman/lib/zfs-base.sh
log-output -t partman zpool import -a -f -o altroot=/target
# Some ZFS versions don't create cachefile when "-o altroot" is used.
# Request it explicitly.
for vg in $(zpool list -H -o name) ; do
log-output -t partman-zfs zpool set cachefile=/boot/zfs/zpool.cache "$vg" || return 1
done
if [ -x /sbin/zpool ]; then
vgroups=$(/sbin/zpool list -H 2>/dev/null | \
sed -e 's/\t.*//' | sort)
else
vgroups=''
fi
for dev in /var/lib/partman/devices/*; do
[ -d "$dev" ] || continue
cd $dev
partitions=
open_dialog PARTITIONS
while { read_line num id size type fs path name; [ "$id" ]; }; do
if [ "$fs" != free ]; then
partitions="$partitions $id"
fi
done
close_dialog
for id in $partitions; do
zfs=no
# If the device is in fact being used for zfs, mark it as such.
# This is a hack and it only works for full block devices, not
# partitions. It makes raid devices used for zfs show up as such.
if zpool status 2>/dev/null | grep -q "\s$(basename $(cat $dev/device))\s" ; then
zfs=yes
fi
open_dialog GET_FILE_SYSTEM $id
read_line fs
close_dialog
if [ "$fs" = zfs ]; then
zfs=yes
fi
if [ "$zfs" = yes ]; then
mkdir -p $id
echo zfs >$id/method
fi
done
if [ -f device ]; then
# Obtain the VG from the device name
device=`cat device`
case "$device" in
/dev/zvol/*)
vglv=${device#/dev/zvol/}
vglv=$(echo "$vglv" | sed -e 's/\([^-]\)-\([^-]\)/\1 \2/' |
sed -e 's/--/-/g')
vg=$(echo "$vglv" | cut -d" " -f1)
;;
esac
is_vg=no
for vgs in $vgroups; do
[ "$vgs" = "$vg" ] && is_vg=yes
done
if [ "$is_vg" = yes ] ; then
# this is an activated logical volume
# let's create label on it
open_dialog NEW_LABEL loop
close_dialog
# find the free space
open_dialog PARTITIONS
free_space=''
while { read_line num id size type fs path name; [ "$id" ]; }; do
if [ "$fs" = free ]; then
free_space=$id
free_size=$size
fi
done
close_dialog
# create partition in the free space
if [ "$free_space" ]; then
create_new_partition primary $free_space full $free_size "zfs"
fi
open_dialog DISK_UNCHANGED
close_dialog
fi
fi
done
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