zfs/contrib/initramfs/scripts/local-top/zfs

   1 #!/bin/sh
   2 PREREQ="mdadm mdrun multipath"
   3
   4 prereqs()
   5 {
   6         echo "$PREREQ"
   7 }
   8
   9 case $1 in
  10 # get pre-requisites
  11 prereqs)
  12         prereqs
  13         exit 0
  14         ;;
  15 esac
  16
  17
  18 #
  19 # Helper functions
  20 #
  21 message()
  22 {
  23         if [ -x /bin/plymouth ] && plymouth --ping; then
  24                 plymouth message --text="$@"
  25         else
  26                 echo "$@" >&2
  27         fi
  28         return 0
  29 }
  30
  31 udev_settle()
  32 {
  33         # Wait for udev to be ready, see https://launchpad.net/bugs/85640
  34         if [ -x /sbin/udevadm ]; then
  35                 /sbin/udevadm settle --timeout=30
  36         elif [ -x /sbin/udevsettle ]; then
  37                 /sbin/udevsettle --timeout=30
  38         fi
  39         return 0
  40 }
  41
  42
  43 activate_vg()
  44 {
  45         # Sanity checks
  46         if [ ! -x /sbin/lvm ]; then
  47                 message "lvm is not available"
  48                 return 1
  49         fi
  50
  51         # Detect and activate available volume groups
  52         /sbin/lvm vgscan
  53         /sbin/lvm vgchange -a y --sysinit
  54         return $?
  55 }
  56
  57 udev_settle
  58 activate_vg
  59
  60 exit 0