initramfs-tools/scripts/live-bottom/12fstab

   1 #!/bin/sh
   2
   3 #set -e
   4
   5 # initramfs-tools header
   6
   7 PREREQ=""
   8 FSTAB=/root/etc/fstab
   9
  10 prereqs()
  11 {
  12         echo "${PREREQ}"
  13 }
  14
  15 case "${1}" in
  16         prereqs)
  17                 prereqs
  18                 exit 0
  19                 ;;
  20 esac
  21
  22 # live-boot header
  23
  24 . /scripts/live-functions
  25
  26 if [ -n "${NOFSTAB}" ]
  27 then
  28         exit 0
  29 fi
  30
  31 log_begin_msg "Configuring fstab"
  32
  33 # live-boot script
  34
  35 if ! grep -qs  "^${UNIONTYPE}" "${FSTAB}"
  36 then
  37         echo "${UNIONTYPE} / ${UNIONTYPE} rw 0 0" >> "${FSTAB}"
  38 fi
  39
  40 if ! grep -qs "^tmpfs /tmp" "${FSTAB}"
  41 then
  42         echo "tmpfs /tmp tmpfs nosuid,nodev 0 0" >> "${FSTAB}"
  43 fi
  44
  45 if [ -n "${SWAPON}" ]
  46 then
  47         devices=""
  48
  49         for device in /dev/[hs]d[a-z][0-9]*
  50         do
  51                 if ! [ -b "${device}" ]
  52                 then
  53                         continue
  54                 fi
  55
  56                 /sbin/blkid -o udev -p ${device%%[0-9]*} | grep -q "^ID_FS_USAGE=raid" && continue
  57
  58                 magic=$(/bin/dd if="${device}" bs=4086 skip=1 count=1 2>/dev/null | /bin/dd bs=10 count=1 2>/dev/null) || continue
  59
  60                 if [ "${magic}" = "SWAPSPACE2" -o "${magic}" = "SWAP-SPACE" ]
  61                 then
  62                         #log "Found ${device}"
  63                         devices="${devices} ${device}"
  64                 fi
  65         done
  66
  67         # Remove all auto swap entries
  68         if grep -qs  "swap swap" "${FSTAB}"
  69         then
  70                 grep -v "swap swap" "${FSTAB}" > "${FSTAB}".tmp
  71                 mv "${FSTAB}".tmp "${FSTAB}"
  72         fi
  73
  74         # Add new swap entries
  75         for device in ${devices}
  76         do
  77                 echo "${device} swap swap defaults 0 0" >> "${FSTAB}"
  78         done
  79 fi
  80
  81 # disabled for now
  82 #rm -f /root/etc/rcS.d/S*checkroot.sh
  83
  84 if [ "${NOFASTBOOT}" != "Yes" ]
  85 then
  86         touch root/fastboot
  87 fi
  88
  89 log_end_msg