scripts/live-bottom/13swap

   1 #!/bin/sh
   2
   3 PREREQ=""
   4 DESCRIPTION="Setting up swap..."
   5 FSTAB=/root/etc/fstab
   6
   7 . /scripts/live-functions
   8
   9 prereqs()
  10 {
  11        echo "$PREREQ"
  12 }
  13
  14 case $1 in
  15 # get pre-requisites
  16 prereqs)
  17        prereqs
  18        exit 0
  19        ;;
  20 esac
  21
  22 log_begin_msg "$DESCRIPTION"
  23
  24 if [ -n "${SWAPOFF}" ]
  25 then
  26     exit 0
  27 fi
  28
  29 devices=""
  30 for device in /dev/[hs]d[a-z][0-9]*; do
  31     if ! [ -b "$device" ]; then
  32         continue
  33     fi
  34
  35     magic=$(/bin/dd if="$device" bs=4086 skip=1 count=1 2>/dev/null | /bin/dd bs=10 count=1 2>/dev/null) || continue
  36
  37     if [ "$magic" = "SWAPSPACE2" -o "$magic" = "SWAP-SPACE" ]; then
  38 #        log "Found $device"
  39         devices="$devices $device"
  40         fi
  41 done
  42
  43 for device in $devices; do
  44     cat >> $FSTAB <<EOF
  45 $device swap swap defaults 0 0
  46 EOF
  47 done
  48
  49 log_end_msg