diff options
Diffstat (limited to 'debian/initramfs/hook')
| -rw-r--r-- | debian/initramfs/hook | 264 |
1 files changed, 54 insertions, 210 deletions
diff --git a/debian/initramfs/hook b/debian/initramfs/hook index 74ed7e38..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/AUTO lines, and merge continuation lines into one - if [ -f "$1" ] ; then - sed -e :a -re '$!N;s/\n[[:space:]]+/ /;ta' -ne '/^(ARRAY|DEVICE|HOMEHOST|AUTO)/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 |