mirror_zfs/contrib/dracut/90zfs/parse-zfs.sh.in
Brian Behlendorf 64025fa3a1
Silence 'make checkbashisms'
Commit d2bce6d03 added the 'make checkbashisms' target but did not
resolve all of the bashisms in the scripts.  This commit doesn't
resolve them all either but it does fix up a few, and it excludes
the others so 'make checkstyle' no longer prints warnings.  It's
a small step in the right direction.

* Dracut is Linux specific and itself depends on bash.  Therefore
  all dracut support scripts can be bash specific, update their
  shebang accordingly.

* zed-functions.sh, zfs-import, zfs-mount, zfs-zed, smart
  paxcheck.sh, make_gitrev.sh - these scripts were excuded from
  the check until they can be updated and properly tested.

* zfsunlock - only whole values for sleep are allowed.

* vdev_id - removed unneeded locals; use && instead of -a.

* dkms.mkconf, dkms.postbuil - use || instead of -o.

Reviewed-by: InsanePrawn <insane.prawny@gmail.com>
Reviewed-by:  Gabriel A. Devenyi <gdevenyi@gmail.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #10755
2020-08-20 13:45:47 -07:00

67 lines
2.0 KiB
Bash
Executable File

#!/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