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#!/bin/sh
command -v getarg >/dev/null || . /lib/dracut-lib.sh
command -v getargbool >/dev/null || {
# Compatibility with older Dracut versions.
# With apologies to the Dracut developers.
getargbool() {
local _b
unset _b
local _default
_default="$1"; shift
_b=$(getarg "$@")
[ $? -ne 0 -a -z "$_b" ] && _b="$_default"
if [ -n "$_b" ]; then
[ $_b = "0" ] && return 1
[ $_b = "no" ] && return 1
[ $_b = "off" ] && return 1
fi
return 0
}
}
OLDIFS="${IFS}"
NEWLINE="
"
ZPOOL_IMPORT_OPTS=""
if getargbool 0 zfs_force -y zfs.force -y zfsforce ; then
warn "ZFS: Will force-import pools if necessary."
ZPOOL_IMPORT_OPTS="${ZPOOL_IMPORT_OPTS} -f"
fi
# find_bootfs
# returns the first dataset with the bootfs attribute.
find_bootfs() {
IFS="${NEWLINE}"
for dataset in $(zpool list -H -o bootfs); do
case "${dataset}" in
"" | "-")
continue
;;
"no pools available")
IFS="${OLDIFS}"
return 1
;;
*)
IFS="${OLDIFS}"
echo "${dataset}"
return 0
;;
esac
done
IFS="${OLDIFS}"
return 1
}
# import_pool POOL
# imports the given zfs pool if it isn't imported already.
import_pool() {
local pool="${1}"
if ! zpool list -H "${pool}" 2>&1 > /dev/null ; then
info "ZFS: Importing pool ${pool}..."
if ! zpool import -N ${ZPOOL_IMPORT_OPTS} "${pool}" ; then
warn "ZFS: Unable to import pool ${pool}"
return 1
fi
fi
return 0
}
# mount_dataset DATASET
# mounts the given zfs dataset.
mount_dataset() {
local dataset="${1}"
local mountpoint="$(zfs get -H -o value mountpoint "${dataset}")"
# We need zfsutil for non-legacy mounts and not for legacy mounts.
if [ "${mountpoint}" = "legacy" ] ; then
mount -t zfs "${dataset}" "${NEWROOT}"
else
mount -o zfsutil -t zfs "${dataset}" "${NEWROOT}"
fi
return $?
}
# export_all OPTS
# exports all imported zfs pools.
export_all() {
local opts="${@}"
local ret=0
IFS="${NEWLINE}"
for pool in `zpool list -H -o name` ; do
if zpool list -H "${pool}" 2>&1 > /dev/null ; then
zpool export "${pool}" ${opts} || ret=$?
fi
done
IFS="${OLDIFS}"
return ${ret}
}
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