recipes/slugos-init/files/boot/disk

   1 #!/bin/sh
   2 # boot from the hard disk partition "$1" (which
   3 # must be given) using options from the rest of
   4 # the command line.
   5
   6 # Use the standard init path (see /etc/init.d/rcS)
   7 export PATH=/sbin:/bin:/usr/sbin:/usr/bin
   8
   9 # Mount required fileystems if necessary
  10 [ -e /proc/cpuinfo ] || mount -t proc  proc  /proc
  11 [ -e /sys/class    ] || mount -t sysfs sysfs /sys
  12
  13 # Load the helper functions
  14 . /etc/default/functions
  15 . /etc/default/modulefunctions
  16
  17 leds boot system
  18
  19 if test -n "$1"
  20 then
  21         device="$1"
  22         shift
  23         # load USB & SCSI storage modules (/proc required!)
  24         echo "boot: loading modules required for disk boot"
  25         loaddiskmods
  26         # waiting for disk
  27         if test "$sleep" -gt 0
  28         then
  29                 echo "boot: waiting $sleep seconds for disk"
  30                 sleep "$sleep"
  31         fi
  32         # Attempt to assemble the RAID if necessary
  33         if (echo $device | grep -q "^/dev/md")
  34         then
  35                 if test -n "$MDUUID"
  36                 then
  37                         echo "boot: assembling RAID array (UUID)"
  38                         mdadm -Acpartitions --auto=md --uuid="$MDUUID" $device
  39                 else
  40                         echo "boot: assembling RAID array (config file)"
  41                         mdadm -As --auto=md $device
  42                 fi
  43         fi
  44
  45         # fire the boot
  46         echo "boot: rootfs: mount $* $device [$UUID]"
  47
  48         # Mount read-write because before exec'ing init
  49         # If a UUID is given (in the environment) this
  50         # is used in preference to the device, but if
  51         # the UUID mount fails a standard device mount
  52         # is attempted.
  53         if      test -n "$UUID" &&
  54                 mount "$@" UUID="$UUID" /mnt ||
  55                 mount "$@" "$device" /mnt
  56         then
  57                 # checkmount checks for sh, chroot, init, /dev
  58                 # and /mnt (i.e. /mnt/mnt in this case).
  59                 # minimaldevnodes checks (and creates if required)
  60                 # a few mandatory /dev nodes we may need.
  61                 if checkmount /mnt && minimaldevnodes /mnt
  62                 then
  63                         # pivot to /initrd if available, else /mnt
  64                         cd /
  65                         if test -d /mnt/initrd
  66                         then
  67                                 swivel mnt initrd
  68                         else
  69                                 swivel mnt mnt
  70                         fi
  71                         # swivel failed
  72                 fi
  73                 # Failure: unmount the partition
  74                 umount /mnt
  75                 # Remount /proc and /sys if necessary
  76                 [ -e /proc/cpuinfo ] || mount -t proc  proc  /proc
  77                 [ -e /sys/class    ] || mount -t sysfs sysfs /sys
  78         fi
  79 fi
  80
  81 # fallback - use the flash boot
  82 leds beep -f 1000 -r 2
  83 exec /boot/flash