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#!/bin/bash
. /lib/dracut-lib.sh
# Let the command line override our host id.
spl_hostid=$(getarg spl_hostid=)
if [ -n "${spl_hostid}" ] ; then
info "ZFS: Using hostid from command line: ${spl_hostid}"
AA=$(echo "${spl_hostid}" | cut -b 1,2)
BB=$(echo "${spl_hostid}" | cut -b 3,4)
CC=$(echo "${spl_hostid}" | cut -b 5,6)
DD=$(echo "${spl_hostid}" | cut -b 7,8)
echo -ne "\\x${DD}\\x${CC}\\x${BB}\\x${AA}" >/etc/hostid
elif [ -f "/etc/hostid" ] ; then
info "ZFS: Using hostid from /etc/hostid: $(hostid)"
else
warn "ZFS: No hostid found on kernel command line or /etc/hostid."
warn "ZFS: Pools may not import correctly."
fi
wait_for_zfs=0
case "${root}" in
""|zfs|zfs:)
# We'll take root unset, root=zfs, or root=zfs:
# No root set, so we want to read the bootfs attribute. We
# can't do that until udev settles so we'll set dummy values
# and hope for the best later on.
root="zfs:AUTO"
rootok=1
wait_for_zfs=1
info "ZFS: Enabling autodetection of bootfs after udev settles."
;;
ZFS\=*|zfs:*|zfs:FILESYSTEM\=*|FILESYSTEM\=*)
# root is explicit ZFS root. Parse it now. We can handle
# a root=... param in any of the following formats:
# root=ZFS=rpool/ROOT
# root=zfs:rpool/ROOT
# root=zfs:FILESYSTEM=rpool/ROOT
# root=FILESYSTEM=rpool/ROOT
# root=ZFS=pool+with+space/ROOT+WITH+SPACE (translates to root=ZFS=pool with space/ROOT WITH SPACE)
# Strip down to just the pool/fs
root="${root#zfs:}"
root="${root#FILESYSTEM=}"
root="zfs:${root#ZFS=}"
# switch + with spaces because kernel cmdline does not allow us to quote parameters
root=$(printf '%s\n' "$root" | sed "s/+/ /g")
rootok=1
wait_for_zfs=1
info "ZFS: Set ${root} as bootfs."
;;
esac
# Make sure Dracut is happy that we have a root and will wait for ZFS
# modules to settle before mounting.
if [ ${wait_for_zfs} -eq 1 ]; then
ln -s /dev/null /dev/root 2>/dev/null
initqueuedir="${hookdir}/initqueue/finished"
test -d "${initqueuedir}" || {
initqueuedir="${hookdir}/initqueue-finished"
}
echo '[ -e /dev/zfs ]' > "${initqueuedir}/zfs.sh"
fi
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