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-rw-r--r--debian/initramfs/hook264
1 files changed, 54 insertions, 210 deletions
diff --git a/debian/initramfs/hook b/debian/initramfs/hook
index 85bad65e..ae7d4d18 100644
--- a/debian/initramfs/hook
+++ b/debian/initramfs/hook
@@ -7,10 +7,10 @@
#
set -eu
-PREREQ=
+PREREQ="udev"
prereqs()
{
- echo "$PREREQ"
+ echo "$PREREQ"
}
case "${1:-}" in
@@ -44,223 +44,67 @@ warn()
write W "$@"
}
-err()
-{
- write E "$@"
-}
-
-MDADM=/sbin/mdadm
-MDMON=/sbin/mdmon
-[ -x "$MDADM" ] || exit 0
-
-[ -r /usr/share/initramfs-tools/hook-functions ] || exit 0
. /usr/share/initramfs-tools/hook-functions
# copy the binary as early as possible
-copy_exec $MDADM /sbin
-copy_exec $MDMON /sbin
+copy_exec /sbin/mdadm /sbin
+copy_exec /sbin/mdmon /sbin
+
+# Copy udev rules, which udev no longer does
+for UDEV_RULE in 63-md-raid-arrays.rules 64-md-raid-assembly.rules; do
+for rules_folder in /lib/udev/rules.d /etc/udev/rules.d; do
+ if [ -f $rules_folder/$UDEV_RULE ]; then
+ mkdir -p $DESTDIR$rules_folder
+ cp $rules_folder/$UDEV_RULE $DESTDIR$rules_folder/$UDEV_RULE
+ fi
+done
+done
-# copy all modules into the initramfs, just for safety.
-# we copy raid456 / raid5+raid6 because the hook script just won't do
-# anything when the module cannot be found.
-modules="linear multipath raid0 raid1 raid456 raid5 raid6 raid10"
-for mod in $modules; do manual_add_modules $mod; done
+# load raid modules in the initramfs
+for module in linear multipath raid0 raid1 raid456 raid5 raid6 raid10; do
+ force_load $module
+done
-# read in the configuration
+# copy the mdadm configuration
CONFIG=/etc/mdadm/mdadm.conf
ALTCONFIG=/etc/mdadm.conf
-[ ! -f $CONFIG ] && [ -f $ALTCONFIG ] && CONFIG=$ALTCONFIG || :
-
-DEBIANCONFIG=/etc/default/mdadm
-INITRDSTART=all
-[ -s $DEBIANCONFIG ] && . $DEBIANCONFIG
-[ -z "$INITRDSTART" ] && INITRDSTART=none
-
DESTMDADMCONF=$DESTDIR/etc/mdadm/mdadm.conf
-DESTCONFIG=$DESTDIR/conf/mdadm
-
-if [ -f $CONFIG ]; then
- homehost="$(sed -ne 's,^[[:space:]]*HOMEHOST[[:space:]]*,,p' $CONFIG)"
-fi
-if [ -z "${homehost:-}" ] || [ "${homehost:-}" = '<system>' ]; then
- echo "MD_HOMEHOST='$(hostname)'" > $DESTCONFIG
-fi
-
-install_config()
-{
- # install the configuration file
- mkdir -p ${2%/*}
- # only copy ARRAY/DEVICE/HOMEHOST lines, and merge continuation lines into one
- if [ -f "$1" ] ; then
- sed -e :a -re '$!N;s/\n[[:space:]]+/ /;ta' -ne '/^(ARRAY|DEVICE|HOMEHOST)/P;D' $1 > $2
- fi
-}
+[ ! -f $CONFIG ] && [ -f $ALTCONFIG ] && CONFIG=$ALTCONFIG || :
+mkdir -p ${DESTDIR}/etc/mdadm
if [ ! -f $CONFIG ]; then
- # there is no configuration file, so let's create one
-
- if /usr/share/mdadm/mkconf generate $CONFIG; then
- # all is well
- install_config $CONFIG $DESTMDADMCONF
- info "auto-generated the mdadm.conf configuration file."
- else
- # we failed to auto-generate, so let the emergency procedure take over
- warn "failed to auto-generate the mdadm.conf file."
- fi
-
+ # there is no configuration file, so let's create one
+ if /usr/share/mdadm/mkconf generate $CONFIG; then
+ # all is well
+ cp -p $CONFIG $DESTMDADMCONF
+ info "auto-generated the mdadm.conf configuration file."
+ else
+ # we failed to auto-generate, so let the emergency procedure take over
+ warn "failed to auto-generate the mdadm.conf file."
+ warn "please read /usr/share/doc/mdadm/README.upgrading-2.5.3.gz ."
+ fi
else
-
- if grep -q '^ARRAY' $CONFIG; then
-
- # this is the ideal case
- install_config $CONFIG $DESTMDADMCONF
- info "using configuration file: $CONFIG"
-
- else
-
- # the file defines no ARRAYs. We better create a temporary file to be sure.
-
- warn "$CONFIG defines no arrays."
-
- mkdir --parents ${DESTMDADMCONF%/*}
- tmpfile="${DESTMDADMCONF}.tmp"
- if /usr/share/mdadm/mkconf > $tmpfile; then
- # all is well, we now have a temporary configuration file
- info "auto-generated temporary mdadm.conf configuration file."
- install_config $tmpfile $DESTMDADMCONF
- else
- # stuff's really broke, as we failed to generate a temporary file.
- # let's hope the unchecked file works, provided it contains at least one
- # ARRAY statement...
- warn "failed to auto-generate temporary mdadm.conf file."
- if grep -q '^ARRAY' $CONFIG; then
- warn "using the unchecked file and hoping for the best..."
- install_config $CONFIG $DESTMDADMCONF
- fi
- fi
- rm -f $tmpfile
-
- fi
-
-fi
-
-# if at this point, $DESTMDADMCONF does not exist or it does not contain any
-# ARRAY statements, we must let the initramfs handle stuff.
-if [ ! -f $DESTMDADMCONF ]; then
- warn "no configuration file available."
- info "letting initramfs assemble auto-detected arrays."
- exit 0
-elif ! grep -q '^ARRAY' $DESTMDADMCONF; then
- warn "no arrays defined in configuration file."
- info "letting initramfs assemble auto-detected arrays."
- exit 0
-else
- # obtain devices list from config file, honouring multiline entries
- devices="$(
- dev=
- while read line; do
- case "$line" in
- (ARRAY*) :;;
- (*) continue;;
- esac
- for atom in $line; do
- case "$atom" in
- (/dev*) dev=$atom;;
- esac
- done
-
- # /dev/mdX and /dev/md/X are the same, really
- case "$dev" in
- "") continue ;;
- (/dev/md/*) alt=/dev/md${dev##*/};;
- (/dev/md*) alt=/dev/md/${dev#/dev/md};;
- (*)
- err "unknown device encountered: $dev"
- warn_emergency
- exit 0
- ;;
- esac
- if [ ! -b "$dev" ] && [ -b "$alt" ]; then
- dev="$alt"
- fi
-
- echo "$dev"
- done < $DESTMDADMCONF)" || exit $?
-fi
-
-if [ "$INITRDSTART" != none ] && [ -n "$devices" ]; then
-
- devs=
- for dev in $devices; do
- case "$INITRDSTART " in
- all|*${dev}[[:space:]]*)
- case "$devs " in # uniquiness
- (*${dev}\ *) :;;
- (*) devs="${devs:+$devs }$dev" ;;
- esac
- ;;
- *) :;;
- esac
- done
-
- # make sure the configuration file knows about all running devices
- $MDADM --detail --scan | while read array device params; do
- uuid=${params#*UUID=}; uuid=${uuid%% *}
- if ! grep -qi "uuid=$uuid" $DESTMDADMCONF; then
- warn "the array $device with UUID $uuid"
- warn "is currently active, but it is not listed in mdadm.conf. if"
- warn "it is needed for boot, then YOUR SYSTEM IS NOW UNBOOTABLE!"
- warn "please inspect the output of /usr/share/mdadm/mkconf, compare"
- warn "it to $CONFIG, and make the necessary changes."
- fi
- done
-
- for i in $INITRDSTART; do
- case "$INITRDSTART" in all) break;; *) :;; esac
- case "$devs" in
- *${i}*) continue;;
- *) :;;
- esac
-
- warn "I am supposed to start $i from the initial ramdisk,"
- warn "yet I cannot find the array in the configuration file."
- warn "I am thus reverting to starting all arrays."
- INITRDSTART=all
- break
- done
-
- if [ "$INITRDSTART" = all ]; then
- echo "MD_DEVS=all" >> $DESTCONFIG
- else
- echo "MD_DEVS='$devs'" >> $DESTCONFIG
- fi
-
- if [ "$INITRDSTART" = all ]; then
- info "will start all available MD arrays from the initial ramdisk."
- else
- for i in $devs; do
- info "will start MD array $i from the initial ramdisk."
- done
- fi
-
- # Copy udev rules, which udev no longer does
- for rules_file in 63-md-raid-arrays.rules 64-md-raid-assembly.rules
- do
- for rules_folder in /lib/udev/rules.d /etc/udev/rules.d; do
- if [ -f $rules_folder/$rules_file ]; then
- mkdir -p $DESTDIR$rules_folder
- cp $rules_folder/$rules_file $DESTDIR$rules_folder/$rules_file
- fi
- done
- done
-
-else
- echo "MD_DEVS=none" >> $DESTCONFIG
- info "no MD arrays will be started from the initial ramdisk."
+ cp -p $CONFIG ${DESTDIR}/etc/mdadm
+ sed -i '/^CREATE/s/^/#/' $DESTMDADMCONF
+ if ! grep -q '^ARRAY' $CONFIG; then
+ tmpfile="${DESTMDADMCONF}.tmp"
+ warn "$CONFIG defines no arrays."
+ if /usr/share/mdadm/mkconf > $tmpfile; then
+ cp -p $tmpfile $DESTMDADMCONF
+ else
+ warn "failed to auto-generate temporary mdadm.conf file."
+ fi
+ else
+ # make sure the configuration file knows about all running devices
+ /sbin/mdadm --detail --scan | while read array device params; do
+ uuid=${params#*UUID=}; uuid=${uuid%% *}
+ if ! grep -q "UUID=$uuid" $DESTMDADMCONF; then
+ warn "the array $device with UUID $uuid"
+ warn "is currently active, but it is not listed in mdadm.conf. if"
+ warn "it is needed for boot, then YOUR SYSTEM IS NOW UNBOOTABLE!"
+ warn "please inspect the output of /usr/share/mdadm/mkconf, compare"
+ warn "it to $CONFIG, and make the necessary changes."
+ fi
+ done
+ fi
fi
-
-# only output this on Debian systems
-[ -s /etc/default/mdadm ] && \
- info 'use `dpkg-reconfigure --priority=low mdadm` to change this.'
-
-exit 0