bootscripts/contrib/new-boot-0.2/sbin/init.d/runlevel.1/mountfs

   1 #! /bin/sh
   2 #
   3 # Mount local filesystems and activate swap
   4 #
   5
   6 #locate and source functions script
   7 source `PATH=$INIT_D/:${0%/*}/:${0%/*/*}/:${0%/*/*/*}/ type -p functions`
   8
   9 case "$1" in
  10   start)
  11      need $checked_filesystems || exit_if_fatal_error
  12
  13      echo 'Remounting root file system in read-write mode...'
  14      mount -n -o remount,rw /
  15      up_evaluate_retval || exit_if_any_error
  16
  17      #clear mtab to make sure there is no wrong data that could confuse
  18      #the following mounting of /proc
  19      echo > $INIT_ROOT/etc/mtab
  20
  21      #try to mount /proc to have /proc/mounts available
  22      mount -t proc proc /proc 2>/dev/null
  23
  24      #try to copy /proc/mounts to /etc/mtab to get correct information
  25      #about filesystems
  26      #We filter the entry for the / partition if it is called /dev/root
  27      #because older versions of e2fsck are unable to deal with it properly.
  28      #If we filter it out, we use a fake mount to add it back with the name
  29      #from fstab (which said old e2fsck version expects)
  30      if [ -e /proc/mounts ]; then
  31         x="`expr "$(</proc/mounts)" : '\(.*\)'$'/dev/root[ \t].*'`"
  32         y="`expr "$(</proc/mounts)" : $'.*/dev/root[ \t][^\n]*\n''\(.*\)'`"
  33         if [ -n "$x" ]; then x="$x"$'\n' ; fi
  34         if [ -n "$y" ]; then y="$y"$'\n' ; fi
  35         if [ -n "$x$y" ]; then
  36             echo -n "$x$y" > $INIT_ROOT/etc/mtab
  37             mount -f /
  38         else
  39             cp /proc/mounts $INIT_ROOT/etc/mtab 2>/dev/null
  40         fi
  41      fi
  42
  43      echo 'Mounting local filesystems...'
  44      if [ ! -r /etc/fstab ]; then
  45          echo -n 'Cannot read /etc/fstab => cannot mount local filesystems!'
  46          print_status failed
  47          exit 1
  48      else
  49        mount -a
  50        up_evaluate_retval || exit_if_any_error
  51      fi
  52
  53      #add swap space *after* mounting filesystems because swap files might
  54      #be located on an otherwise unmounted fs (is this really an issue?)
  55      echo Adding swap space...
  56      dmesg -n6 #prevent message from swapon
  57      swapon -a
  58      up_evaluate_retval
  59      dmesg -n7 #allow all messages again
  60      ;;
  61   stop)
  62      #deactivate swap *before* unmounting filesystems because swap files might
  63      #prevent unmounting of fs (is this really an issue?)
  64      echo 'Deactivating swap...'
  65      swapoff -a
  66      up_evaluate_retval
  67
  68      #first fake the mount so that mtab is written properly as long
  69      #as / still mounted rw
  70      mount -f -o remount,ro /
  71
  72      #unmount all filesystems except devfs and proc to avoid "none busy"
  73      #warning. / is remounted read-only because it can't be unmounted
  74      echo 'Unmounting local fs and remounting / read-only...'
  75      umount -a -r -t nodevfs,noproc
  76      up_evaluate_retval || exit_if_any_error
  77      ;;
  78   *)
  79      exit 1
  80      ;;
  81 esac
  82
  83 exit 0