mirror_zfs/contrib/dracut/90zfs/module-setup.sh.in
Rudd-O f8e87e205c Properly use the Dracut cleanup hook to order pool shutdown
When Dracut starts up, it needs to determine whether a pool will remain
"hanging open" before the system shuts off. In such a case, then the
code to clean up the pool (using the previous export -F work) must
be invoked. Since Dracut has had a recent change that makes
mount-zfs.sh simply not run when the root dataset is already mounted,
we must use the cleanup hook to order Dracut to do shutdown cleanup.

Important note: this code will not accomplish its stated goal until this
bug is fixed: https://bugzilla.redhat.com/show_bug.cgi?id=1385432

That bug impacts more than just ZFS. It impacts LUKS, dmraid, and
unmount during poweroff. It is a Fedora-wide bug.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Manuel Amador (Rudd-O) <rudd-o@rudd-o.com>
Closes #5287
2016-10-17 11:51:15 -07:00

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#!/bin/sh
check() {
# We depend on udev-rules being loaded
[ "${1}" = "-d" ] && return 0
# Verify the zfs tool chain
for tool in "@sbindir@/zpool" "@sbindir@/zfs" "@sbindir@/mount.zfs" ; do
test -x "$tool" || return 1
done
# Verify grep exists
which grep >/dev/null 2>&1 || return 1
return 0
}
depends() {
echo udev-rules
return 0
}
installkernel() {
instmods zfs
instmods zcommon
instmods znvpair
instmods zavl
instmods zunicode
instmods spl
instmods zlib_deflate
instmods zlib_inflate
}
install() {
inst_rules @udevruledir@/90-zfs.rules
inst_rules @udevruledir@/69-vdev.rules
inst_rules @udevruledir@/60-zvol.rules
dracut_install hostid
dracut_install grep
dracut_install @sbindir@/zfs
dracut_install @sbindir@/zpool
# Workaround for zfsonlinux/zfs#4749 by ensuring libgcc_s.so(.1) is included
if [[ -n "$(ldd @sbindir@/zpool | grep -F 'libgcc_s.so')" ]]; then
# Dracut will have already tracked and included it
:;
elif command -v gcc-config 2>&1 1>/dev/null; then
# On systems with gcc-config (Gentoo, Funtoo, etc.):
# Use the current profile to resolve the appropriate path
dracut_install "/usr/lib/gcc/$(s=$(gcc-config -c); echo ${s%-*}/${s##*-})/libgcc_s.so.1"
else
# Fallback: Guess the path and include all matches
dracut_install /usr/lib/gcc/*/*/libgcc_s.so*
fi
dracut_install @sbindir@/mount.zfs
dracut_install @udevdir@/vdev_id
dracut_install @udevdir@/zvol_id
inst_hook cmdline 95 "${moddir}/parse-zfs.sh"
if [ -n "$systemdutildir" ] ; then
inst_script "${moddir}/zfs-generator.sh" "$systemdutildir"/system-generators/dracut-zfs-generator
fi
inst_hook mount 98 "${moddir}/mount-zfs.sh"
inst_hook cleanup 99 "${moddir}/zfs-needshutdown.sh"
inst_hook shutdown 20 "${moddir}/export-zfs.sh"
inst_simple "${moddir}/zfs-lib.sh" "/lib/dracut-zfs-lib.sh"
if [ -e @sysconfdir@/zfs/zpool.cache ]; then
inst @sysconfdir@/zfs/zpool.cache
type mark_hostonly >/dev/null 2>&1 && mark_hostonly @sysconfdir@/zfs/zpool.cache
fi
if [ -e @sysconfdir@/zfs/vdev_id.conf ]; then
inst @sysconfdir@/zfs/vdev_id.conf
type mark_hostonly >/dev/null 2>&1 && mark_hostonly @sysconfdir@/zfs/vdev_id.conf
fi
# Synchronize initramfs and system hostid
AA=`hostid | cut -b 1,2`
BB=`hostid | cut -b 3,4`
CC=`hostid | cut -b 5,6`
DD=`hostid | cut -b 7,8`
printf "\x${DD}\x${CC}\x${BB}\x${AA}" > "${initdir}/etc/hostid"
if dracut_module_included "systemd"; then
mkdir -p "${initdir}/$systemdsystemunitdir/initrd.target.wants"
for _item in scan cache ; do
dracut_install @systemdunitdir@/zfs-import-$_item.service
if ! [ -L "${initdir}/$systemdsystemunitdir/initrd.target.wants"/zfs-import-$_item.service ]; then
ln -s ../zfs-import-$_item.service "${initdir}/$systemdsystemunitdir/initrd.target.wants"/zfs-import-$_item.service
type mark_hostonly >/dev/null 2>&1 && mark_hostonly @systemdunitdir@/zfs-import-$_item.service
fi
done
fi
}