share/initrd/rc

   1 #!/bin/sh
   2
   3 # echo "Starting shell from md boot"
   4 # exec sh
   5
   6 /sbin/mount_tmpfs tmpfs /tmp
   7 /sbin/mount_tmpfs tmpfs /var
   8 mkdir /var/tmp
   9 mkdir /var/run
  10
  11 rescue_shell() {
  12         echo "Starting recovery shell!"
  13         exec sh
  14         exit 0
  15 }
  16
  17 # Start udevd
  18 /sbin/udevd
  19
  20 for rcs in /etc/rc.*; do
  21         if [ -x $rcs ]; then
  22                 . $rcs
  23         fi
  24 done
  25
  26 echo "Mounting new root"
  27
  28 IFS=':'
  29 REAL_ROOT=`sysctl -n vfs.real_root`
  30 if [ "$?" -ne "0" ]; then
  31         echo "Kernel does not have vfs.real_root sysctl. Please update your" \
  32                 "kernel if you intend to use initrd"
  33         rescue_shell
  34 fi
  35 set -- $REAL_ROOT
  36 TYPE=$1
  37 unset IFS
  38
  39 if [ "$TYPE" = "local" ]; then
  40         FSTYPE=$2
  41         MOUNTFROM=$3
  42         echo "executing /sbin/mount -t $FSTYPE $4 $MOUNTFROM /new_root"
  43         /sbin/mount -o ro -t $FSTYPE $4 $MOUNTFROM /new_root
  44         if [ "$?" -ne "0" ]; then
  45                 rescue_shell
  46         fi
  47 else
  48         if [ -x "/etc/rcmount_${TYPE}" ]; then
  49                 . /etc/rcmount_${TYPE} $@
  50                 if [ "$?" -ne "0" ]; then
  51                         rescue_shell
  52                 fi
  53         else
  54                 rescue_shell
  55         fi
  56 fi
  57
  58 # Stop udevd
  59 read UDEVD_PID < /var/run/udevd.pid
  60 kill $UDEVD_PID
  61
  62 # Clean up
  63 rm -rf /var/*
  64 rm -rf /tmp/*
  65 /sbin/umount /var
  66 /sbin/umount /tmp
  67
  68 echo "Mounting devfs on new root"
  69 #/sbin/mount_devfs /new_root/dev
  70 /sbin/mount_null /dev /new_root/dev