Update for Dracut-010
Update Dracut module for Dracut-010 and fix race conditions that caused boot to fail on MP systems. Add support for zfs_force flag and parsing of spl_hostid from kernel command line. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Zachary Bedell
Brian Behlendorf
parent
e93ced4847
commit
fde4ce992d
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@ -4,4 +4,7 @@ ACTION!="add|change", GOTO="zfs_end"
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ENV{ID_FS_TYPE}=="zfs", RUN+="/sbin/modprobe zfs"
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ENV{ID_FS_TYPE}=="zfs_member", RUN+="/sbin/modprobe zfs"
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KERNEL=="null", SYMLINK+="root"
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SYMLINK=="null", SYMLINK+="root"
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LABEL="zfs_end"
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@ -1,11 +1,8 @@
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pkgdracutdir = $(datadir)/dracut/modules.d/90zfs
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dist_pkgdracut_SCRIPTS = \
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$(top_srcdir)/dracut/90zfs/90-zfs.rules \
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$(top_srcdir)/dracut/90zfs/check \
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$(top_srcdir)/dracut/90zfs/install \
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$(top_srcdir)/dracut/90zfs/installkernel \
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$(top_srcdir)/dracut/90zfs/module-setup.sh \
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$(top_srcdir)/dracut/90zfs/mount-zfs.sh \
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$(top_srcdir)/dracut/90zfs/zfs-genrules.sh \
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$(top_srcdir)/dracut/90zfs/parse-zfs.sh
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all:
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@ -289,11 +289,8 @@ top_srcdir = @top_srcdir@
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pkgdracutdir = $(datadir)/dracut/modules.d/90zfs
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dist_pkgdracut_SCRIPTS = \
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$(top_srcdir)/dracut/90zfs/90-zfs.rules \
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$(top_srcdir)/dracut/90zfs/check \
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$(top_srcdir)/dracut/90zfs/install \
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$(top_srcdir)/dracut/90zfs/installkernel \
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$(top_srcdir)/dracut/90zfs/module-setup.sh \
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$(top_srcdir)/dracut/90zfs/mount-zfs.sh \
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$(top_srcdir)/dracut/90zfs/zfs-genrules.sh \
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$(top_srcdir)/dracut/90zfs/parse-zfs.sh
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all: all-am
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@ -1,10 +0,0 @@
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#!/bin/bash
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# We depend on udev-rules being loaded
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[ "$1" = "-d" ] && exit 0
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# Verify the zfs tool chain
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which zpool >/dev/null 2>&1 || exit 1
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which zfs >/dev/null 2>&1 || exit 1
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exit 0
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@ -1,17 +0,0 @@
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#!/bin/bash
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inst_rules "$moddir/90-zfs.rules"
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inst_rules /etc/udev/rules.d/60-zpool.rules
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inst_rules /etc/udev/rules.d/60-zvol.rules
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inst /etc/zfs/zdev.conf
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inst /etc/hostid
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dracut_install zfs
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dracut_install zpool
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dracut_install zpool_layout
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dracut_install zpool_id
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dracut_install zvol_id
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dracut_install mount.zfs
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dracut_install hostid
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inst_hook cmdline 95 "$moddir/parse-zfs.sh"
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inst_hook mount 98 "$moddir/mount-zfs.sh"
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inst_hook pre-udev 29 "$moddir/zfs-genrules.sh"
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@ -1,10 +0,0 @@
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#!/bin/bash
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instmods zfs
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instmods zcommon
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instmods znvpair
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instmods zavl
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instmods zunicode
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instmods spl
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instmods zlib_deflate
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instmods zlib_inflate
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@ -0,0 +1,46 @@
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#!/bin/sh
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check() {
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# We depend on udev-rules being loaded
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[ "$1" = "-d" ] && return 0
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# Verify the zfs tool chain
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which zpool >/dev/null 2>&1 || return 1
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which zfs >/dev/null 2>&1 || return 1
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return 0
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}
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depends() {
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echo udev-rules
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return 0
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}
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installkernel() {
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instmods zfs
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instmods zcommon
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instmods znvpair
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instmods zavl
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instmods zunicode
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instmods spl
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instmods zlib_deflate
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instmods zlib_inflate
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}
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install() {
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inst_rules "$moddir/90-zfs.rules"
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inst_rules /etc/udev/rules.d/60-zpool.rules
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inst_rules /etc/udev/rules.d/60-zvol.rules
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inst /etc/zfs/zdev.conf
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inst /etc/zfs/zpool.cache
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inst /etc/hostid
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dracut_install zfs
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dracut_install zpool
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dracut_install zpool_layout
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dracut_install zpool_id
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dracut_install zvol_id
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dracut_install mount.zfs
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dracut_install hostid
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inst_hook cmdline 95 "$moddir/parse-zfs.sh"
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inst_hook mount 98 "$moddir/mount-zfs.sh"
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}
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@ -2,15 +2,67 @@
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. /lib/dracut-lib.sh
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if [ "$rootfs" = "zfs" ]; then
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zfsrootfs=`echo "$root" | sed 's|^zfs:||'`
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zfspool=`echo "$zfsrootfs" | sed 's|/.*||g'`
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zpool import -N "$zfspool"
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mount -o zfsutil -t "$rootfs" "$zfsrootfs" "$NEWROOT"
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if [ "$?" = "0" ]
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then
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ROOTFS_MOUNTED=yes
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ZPOOL_FORCE=""
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if getargbool 0 zfs_force -y zfs.force -y zfsforce ; then
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warn "ZFS: Will force-import pools if necessary."
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ZPOOL_FORCE="-f"
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fi
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case "$root" in
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zfs:*)
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# We have ZFS modules loaded, so we're able to import pools now.
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if [ "$root" = "zfs:AUTO" ] ; then
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# Need to parse bootfs attribute
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info "ZFS: Attempting to detect root from imported ZFS pools."
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# Might be imported by the kernel module, so try searching before
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# we import anything.
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zfsbootfs=`zpool list -H -o bootfs | sed 'q'`
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if [ "$zfsbootfs" = "" ] ; then
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# Not there, so we need to import everything.
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info "ZFS: Attempting to import additional pools."
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zpool import -N -a ${ZPOOL_FORCE}
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zfsbootfs=`zpool list -H -o bootfs | sed 'q'`
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if [ "$zfsbootfs" = "" ] ; then
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rootok=0
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pool=""
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warn "ZFS: No bootfs attribute found in importable pools."
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# Re-export everything since we're not prepared to take
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# responsibility for them.
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zpool list -H | while read fs rest ; do
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zpool export "$fs"
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done
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return 1
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fi
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fi
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info "ZFS: Using ${zfsbootfs} as root."
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else
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mount -t "$rootfs" "$zfsrootfs" "$NEWROOT" && ROOTFS_MOUNTED=yes
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# Should have an explicit pool set, so just import it and we're done.
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zfsbootfs="${root#zfs:}"
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pool="${zfsbootfs%%/*}"
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if ! zpool list -H $pool > /dev/null ; then
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# pool wasn't imported automatically by the kernel module, so
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# try it manually.
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info "ZFS: Importing pool ${pool}..."
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if ! zpool import -N ${ZPOOL_FORCE} $pool ; then
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warn "ZFS: Unable to import pool ${pool}."
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rootok=0
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return 1
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fi
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fi
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fi
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# Above should have left our rpool imported and pool/dataset in $root.
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# We need zfsutil for non-legacy mounts and not for legacy mounts.
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mountpoint=`zfs get -H -o value mountpoint $zfsbootfs`
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if [ "$mountpoint" = "legacy" ] ; then
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mount -t zfs "$zfsbootfs" "$NEWROOT" && ROOTFS_MOUNTED=yes
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else
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mount -o zfsutil -t zfs "$zfsbootfs" "$NEWROOT" && ROOTFS_MOUNTED=yes
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fi
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;;
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esac
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@ -1,23 +1,49 @@
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#!/bin/sh
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. /lib/dracut-lib.sh
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# Let the command line override our host id.
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spl_hostid=`getarg spl_hostid=`
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if [ "${spl_hostid}" != "" ] ; then
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info "ZFS: Using hostid from command line: ${spl_hostid}"
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echo "${spl_hostid}" > /etc/hostid
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elif [ -f /etc/hostid ] ; then
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info "ZFS: Using hostid from /etc/hostid: `cat /etc/hostid`"
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else
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warn "ZFS: No hostid found on kernel command line or /etc/hostid. ZFS pools may not import correctly."
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fi
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case "$root" in
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zfs:FILESYSTEM=*|FILESYSTEM=*)
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root="${root#zfs:}"
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root="zfs:${root#FILESYSTEM=}"
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rootfs="zfs"
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rootok=1 ;;
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zfs:ZFS=*|ZFS=*)
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""|zfs|zfs:)
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# We'll take root unset, root=zfs, or root=zfs:
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# No root set, so we want to read the bootfs attribute. We can't do
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# that until udev settles so we'll set dummy values and hope for the
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# best later on.
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root="zfs:AUTO"
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rootok=1
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info "ZFS: Enabling autodetection of bootfs after udev settles."
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;;
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ZFS\=*|zfs:*|zfs:FILESYSTEM\=*|FILESYSTEM\=*)
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# root is explicit ZFS root. Parse it now.
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# We can handle a root=... param in any of the following formats:
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# root=ZFS=rpool/ROOT
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# root=zfs:rpool/ROOT
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# root=zfs:FILESYSTEM=rpool/ROOT
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# root=FILESYSTEM=rpool/ROOT
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# Strip down to just the pool/fs
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root="${root#zfs:}"
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root="${root#FILESYSTEM=}"
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root="zfs:${root#ZFS=}"
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rootfs="zfs"
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rootok=1 ;;
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rootok=1
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info "ZFS: Set ${root} as bootfs."
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;;
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esac
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if [ "$rootok" != "1" ] ; then
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zpool import -aN
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zfsbootfs=`zpool list -H -o bootfs | grep -v ^-$ -m 1`
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if [ -n "$zfsbootfs" ] ; then
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root="zfs:$zfsbootfs"
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rootfs="zfs"
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rootok=1
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fi
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zpool list -H | while read fs rest ; do zpool export "$fs" ; done
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fi
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# Make sure Dracut is happy that we have a root and will wait for ZFS
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# modules to settle before mounting.
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ln -s /dev/null /dev/root 2>/dev/null
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echo '[ -e /dev/zfs ]' > $hookdir/initqueue/finished/zfs.sh
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@ -1,12 +0,0 @@
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if [ "${root%%:*}" = "zfs" ]; then
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[ -d /dev/.udev/rules.d ] || mkdir -p /dev/.udev/rules.d
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{
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printf 'KERNEL=="%s", SYMLINK+="root"\n' null
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printf 'SYMLINK=="%s", SYMLINK+="root"\n' null
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} >> /dev/.udev/rules.d/99-zfs.rules
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printf '[ -e "%s" ] && { ln -s "%s" /dev/root 2>/dev/null; rm "$job"; }\n' \
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"/dev/null" "/dev/null" >> /initqueue-settled/zfssymlink.sh
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echo '[ -e /dev/root ]' > /initqueue-finished/zfs.sh
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fi
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