modules.d/90mdraid/module-setup.sh

   1 #!/bin/bash
   2
   3 # called by dracut
   4 check() {
   5     local _rootdev
   6     # No mdadm?  No mdraid support.
   7     require_binaries mdadm || return 1
   8
   9     [[ $hostonly ]] || [[ $mount_needs ]] && {
  10         for dev in "${!host_fs_types[@]}"; do
  11             [[ "${host_fs_types[$dev]}" != *_raid_member ]] && continue
  12
  13             DEVPATH=$(get_devpath_block "$dev")
  14
  15             for holder in "$DEVPATH"/holders/*; do
  16                 [[ -e "$holder" ]] || continue
  17                 [[ -e "$holder/md" ]] && return 0
  18                 break
  19             done
  20
  21         done
  22         return 255
  23     }
  24
  25     return 0
  26 }
  27
  28 # called by dracut
  29 depends() {
  30     echo rootfs-block
  31     return 0
  32 }
  33
  34 # called by dracut
  35 installkernel() {
  36     instmods =drivers/md
  37 }
  38
  39 # called by dracut
  40 cmdline() {
  41     local _activated dev line UUID
  42     declare -A _activated
  43
  44     for dev in "${!host_fs_types[@]}"; do
  45         [[ "${host_fs_types[$dev]}" != *_raid_member ]] && continue
  46
  47         UUID=$(
  48             /sbin/mdadm --examine --export $dev \
  49                 | while read line || [ -n "$line" ]; do
  50                 [[ ${line#MD_UUID=} = $line ]] && continue
  51                 printf "%s" "${line#MD_UUID=} "
  52             done
  53         )
  54
  55         [[ -z "$UUID" ]] && continue
  56
  57         if ! [[ ${_activated[${UUID}]} ]]; then
  58             printf "%s" " rd.md.uuid=${UUID}"
  59             _activated["${UUID}"]=1
  60         fi
  61
  62     done
  63 }
  64
  65 # called by dracut
  66 install() {
  67     local rule rule_path
  68     inst_multiple cat
  69     inst_multiple -o mdmon
  70     inst $(command -v partx) /sbin/partx
  71     inst $(command -v mdadm) /sbin/mdadm
  72
  73     if [[ $hostonly_cmdline == "yes" ]]; then
  74         local _raidconf=$(cmdline)
  75         [[ $_raidconf ]] && printf "%s\n" "$_raidconf" >> "${initdir}/etc/cmdline.d/90mdraid.conf"
  76     fi
  77
  78     # <mdadm-3.3 udev rule
  79     inst_rules 64-md-raid.rules
  80     # >=mdadm-3.3 udev rules
  81     inst_rules 63-md-raid-arrays.rules 64-md-raid-assembly.rules
  82     # remove incremental assembly from stock rules, so they don't shadow
  83     # 65-md-inc*.rules and its fine-grained controls, or cause other problems
  84     # when we explicitly don't want certain components to be incrementally
  85     # assembled
  86     for rule in 64-md-raid.rules 64-md-raid-assembly.rules; do
  87         rule_path="${initdir}${udevdir}/rules.d/${rule}"
  88         [ -f "${rule_path}" ] && sed -i -r \
  89             -e '/(RUN|IMPORT\{program\})\+?="[[:alpha:]/]*mdadm[[:blank:]]+(--incremental|-I)[[:blank:]]+(--export )?(\$env\{DEVNAME\}|\$tempnode|\$devnode)/d' \
  90             "${rule_path}"
  91     done
  92
  93     inst_rules "$moddir/65-md-incremental-imsm.rules"
  94
  95     inst_rules "$moddir/59-persistent-storage-md.rules"
  96     prepare_udev_rules 59-persistent-storage-md.rules
  97
  98     # guard against pre-3.0 mdadm versions, that can't handle containers
  99     if ! mdadm -Q -e imsm /dev/null >/dev/null 2>&1; then
 100         inst_hook pre-trigger 30 "$moddir/md-noimsm.sh"
 101     fi
 102     if ! mdadm -Q -e ddf /dev/null >/dev/null 2>&1; then
 103         inst_hook pre-trigger 30 "$moddir/md-noddf.sh"
 104     fi
 105
 106     if [[ $hostonly ]] || [[ $mdadmconf = "yes" ]]; then
 107         if [ -f /etc/mdadm.conf ]; then
 108             inst -H /etc/mdadm.conf
 109         else
 110             [ -f /etc/mdadm/mdadm.conf ] && inst -H /etc/mdadm/mdadm.conf /etc/mdadm.conf
 111         fi
 112         if [ -d /etc/mdadm.conf.d ]; then
 113             local f
 114             inst_dir /etc/mdadm.conf.d
 115             for f in /etc/mdadm.conf.d/*.conf; do
 116                 [ -f "$f" ] || continue
 117                 inst -H "$f"
 118             done
 119         fi
 120     fi
 121
 122     inst_hook pre-udev 30 "$moddir/mdmon-pre-udev.sh"
 123     inst_hook pre-trigger 30 "$moddir/parse-md.sh"
 124     inst_hook pre-mount 10 "$moddir/mdraid-waitclean.sh"
 125     inst_hook cleanup 99 "$moddir/mdraid-needshutdown.sh"
 126     inst_hook shutdown 30 "$moddir/md-shutdown.sh"
 127     inst_script "$moddir/mdraid-cleanup.sh" /sbin/mdraid-cleanup
 128     inst_script "$moddir/mdraid_start.sh" /sbin/mdraid_start
 129     if dracut_module_included "systemd"; then
 130         if [ -e $systemdsystemunitdir/mdmon@.service ]; then
 131             inst_simple $systemdsystemunitdir/mdmon@.service
 132         fi
 133     fi
 134     inst_hook pre-shutdown 30 "$moddir/mdmon-pre-shutdown.sh"
 135 }