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-initramfs header
  23
  24 . /scripts/live-functions
  25
  26 if [ -n "${NOFSTAB}" ]
  27 then
  28         exit 0
  29 fi
  30
  31 log_begin_msg "Configuring fstab"
  32
  33 # live-initramfs script
  34
  35 # Create a fake fstab only if it doesn't exist or if its the debootstrap template
  36 if [ ! -f "${FSTAB}" ] || grep -qs 'UNCONFIGURED FSTAB FOR BASE SYSTEM' "${FSTAB}"
  37 then
  38
  39 cat > ${FSTAB} << EOF
  40 # /etc/fstab: static file system information.
  41 #
  42 # <file system> <mount point>   <type>  <options>       <dump>  <pass>
  43
  44 EOF
  45
  46 fi
  47
  48 if ! grep -qs  "^${UNIONTYPE}" "${FSTAB}"
  49 then
  50         echo "${UNIONTYPE} / ${UNIONTYPE} rw 0 0" >> "${FSTAB}"
  51 fi
  52
  53 if ! grep -qs "^tmpfs /tmp" "${FSTAB}"
  54 then
  55         echo "tmpfs /tmp tmpfs nosuid,nodev 0 0" >> "${FSTAB}"
  56 fi
  57
  58 if [ -n "${SWAPON}" ]
  59 then
  60         devices=""
  61
  62         for device in /dev/[hs]d[a-z][0-9]*
  63         do
  64                 if ! [ -b "${device}" ]
  65                 then
  66                         continue
  67                 fi
  68
  69                 if [ -x /lib/udev/vol_id ]
  70                 then
  71                         /lib/udev/vol_id ${device%%[0-9]*} 2>/dev/null | grep -q "^ID_FS_USAGE=raid" && continue
  72                 fi
  73
  74                 magic=$(/bin/dd if="${device}" bs=4086 skip=1 count=1 2>/dev/null | /bin/dd bs=10 count=1 2>/dev/null) || continue
  75
  76                 if [ "${magic}" = "SWAPSPACE2" -o "${magic}" = "SWAP-SPACE" ]
  77                 then
  78                         #log "Found ${device}"
  79                         devices="${devices} ${device}"
  80                 fi
  81         done
  82
  83         # Remove all auto swap entries
  84         if grep -qs  "swap swap" "${FSTAB}"
  85         then
  86                 grep -v "swap swap" "${FSTAB}" > "${FSTAB}".tmp
  87                 mv "${FSTAB}".tmp "${FSTAB}"
  88         fi
  89
  90         # Add new swap entries
  91         for device in ${devices}
  92         do
  93                 echo "${device} swap swap defaults 0 0" >> "${FSTAB}"
  94         done
  95 fi
  96
  97 # disabled for now
  98 #rm -f /root/etc/rcS.d/S*checkroot.sh
  99
 100 if [ "${NOFASTBOOT}" != "Yes" ]
 101 then
 102         touch root/fastboot
 103 fi
 104
 105 log_end_msg