modules.d/90mdraid/parse-md.sh

   1 #!/bin/sh
   2 # we really need to use `expr substr` with dash
   3 # shellcheck disable=SC2003
   4
   5 MD_UUID=$(getargs rd.md.uuid -d rd_MD_UUID=)
   6 # normalize the uuid
   7 MD_UUID=$(str_replace "$MD_UUID" "-" "")
   8 MD_UUID=$(str_replace "$MD_UUID" ":" "")
   9
  10 if { [ -z "$MD_UUID" ] && ! getargbool 0 rd.auto; } || ! getargbool 1 rd.md -d -n rd_NO_MD; then
  11     info "rd.md=0: removing MD RAID activation"
  12     udevproperty rd_NO_MD=1
  13 else
  14     # rewrite the md rules to only process the specified raid array
  15     if [ -n "$MD_UUID" ]; then
  16         for f in /etc/udev/rules.d/65-md-incremental*.rules; do
  17             [ -e "$f" ] || continue
  18             while read -r line || [ -n "$line" ]; do
  19                 if [ "${line%%UUID CHECK}" != "$line" ]; then
  20                     for uuid in $MD_UUID; do
  21                         printf 'ENV{ID_FS_UUID}=="%s", GOTO="md_uuid_ok"\n' "$(expr substr "$uuid" 1 8)-$(expr substr "$uuid" 9 4)-$(expr substr "$uuid" 13 4)-$(expr substr "$uuid" 17 4)-$(expr substr "$uuid" 21 12)"
  22                     done
  23                     # shellcheck disable=SC2016
  24                     printf 'IMPORT{program}="/sbin/mdadm --examine --export $tempnode"\n'
  25                     for uuid in $MD_UUID; do
  26                         printf 'ENV{MD_UUID}=="%s", GOTO="md_uuid_ok"\n' "$(expr substr "$uuid" 1 8):$(expr substr "$uuid" 9 8):$(expr substr "$uuid" 17 8):$(expr substr "$uuid" 25 8)"
  27                     done
  28                     printf 'GOTO="md_end"\n'
  29                     printf 'LABEL="md_uuid_ok"\n'
  30                 else
  31                     echo "$line"
  32                 fi
  33             done < "${f}" > "${f}.new"
  34             mv "${f}.new" "$f"
  35         done
  36         for uuid in $MD_UUID; do
  37             uuid="$(expr substr "$uuid" 1 8):$(expr substr "$uuid" 9 8):$(expr substr "$uuid" 17 8):$(expr substr "$uuid" 25 8)"
  38             wait_for_dev "/dev/disk/by-id/md-uuid-${uuid}"
  39         done
  40     fi
  41 fi
  42
  43 if [ -e /etc/mdadm.conf ] && getargbool 1 rd.md.conf -d -n rd_NO_MDADMCONF; then
  44     udevproperty rd_MDADMCONF=1
  45     rm -f -- "$hookdir"/pre-pivot/*mdraid-cleanup.sh
  46 fi
  47
  48 if ! getargbool 1 rd.md.conf -d -n rd_NO_MDADMCONF; then
  49     rm -f -- /etc/mdadm/mdadm.conf /etc/mdadm.conf
  50     ln -s "$(command -v mdraid-cleanup)" "$hookdir"/pre-pivot/31-mdraid-cleanup.sh 2> /dev/null
  51 fi
  52
  53 # noiswmd nodmraid for anaconda / rc.sysinit compatibility
  54 # note nodmraid really means nobiosraid, so we don't want MDIMSM then either
  55 if ! getargbool 1 rd.md.imsm -d -n rd_NO_MDIMSM -n noiswmd -n nodmraid; then
  56     info "no MD RAID for imsm/isw raids"
  57     udevproperty rd_NO_MDIMSM=1
  58 fi
  59
  60 # same thing with ddf containers
  61 if ! getargbool 1 rd.md.ddf -n rd_NO_MDDDF -n noddfmd -n nodmraid; then
  62     info "no MD RAID for SNIA ddf raids"
  63     udevproperty rd_NO_MDDDF=1
  64 fi