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 # FIXME: stop hardcoding overloading of initramfs-tools functions
  25 . /scripts/functions
  26 . /lib/live/boot/initramfs-tools.sh
  27
  28 if [ -n "${NOFSTAB}" ]
  29 then
  30         exit 0
  31 fi
  32
  33 log_begin_msg "Configuring fstab"
  34
  35 # live-boot script
  36
  37 if ! grep -qs  "^${UNIONTYPE}" "${FSTAB}"
  38 then
  39         echo "${UNIONTYPE} / ${UNIONTYPE} rw 0 0" >> "${FSTAB}"
  40 fi
  41
  42 if ! grep -qs "^tmpfs /tmp" "${FSTAB}"
  43 then
  44         echo "tmpfs /tmp tmpfs nosuid,nodev 0 0" >> "${FSTAB}"
  45 fi
  46
  47 if [ -n "${SWAPON}" ]
  48 then
  49         devices=""
  50
  51         for device in /dev/[hs]d[a-z][0-9]*
  52         do
  53                 if ! [ -b "${device}" ]
  54                 then
  55                         continue
  56                 fi
  57
  58                 /sbin/blkid -o udev -p ${device%%[0-9]*} | grep -q "^ID_FS_USAGE=raid" && continue
  59
  60                 magic=$(/bin/dd if="${device}" bs=4086 skip=1 count=1 2>/dev/null | /bin/dd bs=10 count=1 2>/dev/null) || continue
  61
  62                 if [ "${magic}" = "SWAPSPACE2" -o "${magic}" = "SWAP-SPACE" ]
  63                 then
  64                         #log "Found ${device}"
  65                         devices="${devices} ${device}"
  66                 fi
  67         done
  68
  69         # Remove all auto swap entries
  70         if grep -qs  "swap swap" "${FSTAB}"
  71         then
  72                 grep -v "swap swap" "${FSTAB}" > "${FSTAB}".tmp
  73                 mv "${FSTAB}".tmp "${FSTAB}"
  74         fi
  75
  76         # Add new swap entries
  77         for device in ${devices}
  78         do
  79                 echo "${device} swap swap defaults 0 0" >> "${FSTAB}"
  80         done
  81 fi
  82
  83 # disabled for now
  84 #rm -f /root/etc/rcS.d/S*checkroot.sh
  85
  86 if [ "${NOFASTBOOT}" != "Yes" ]
  87 then
  88         touch root/fastboot
  89 fi
  90
  91 log_end_msg