src/system-recovery/recovery-init.in

   1 #!/bin/bash
   2
   3 SYSTEM_RECOVERY="/usr/bin/system-recovery"
   4 FAKE_ROOT=/system
   5
   6 GREP="/usr/bin/grep"
   7 MOUNT="/usr/bin/mount"
   8 PARTX="/usr/sbin/partx"
   9 BLKID="/usr/sbin/blkid"
  10 REBOOT="/usr/lib/initrd-recovery/minireboot"
  11 SYNC="/usr/bin/sync"
  12 TOUCH="/usr/bin/touch"
  13 UMOUNT="/usr/bin/umount"
  14 TR="/usr/bin/tr"
  15 SED="/usr/bin/sed"
  16 CUT="/usr/bin/cut"
  17
  18 #------------------------------------------------
  19 #       get partition id
  20 #------------------------------------------------
  21 get_partition_id() {
  22     EMMC_DEVICE="/dev/mmcblk0"
  23     RET_PARTX=$("$PARTX" -s ${EMMC_DEVICE})
  24     TEST=$(echo "$RET_PARTX" | "$TR" -s ' ' | "$SED" -e '1d' -e 's/^ //' | "$CUT" -d ' ' -f 6)
  25     if [ "z$TEST" == "z" ]; then
  26         PART_ROOTFS=$("$BLKID" -L "rootfs" -o device)
  27         PART_SYSTEM_DATA=$("$BLKID" -L "system-data" -o device)
  28         PART_USER=$("$BLKID" -L "user" -o device)
  29     else
  30         PART_ROOTFS=${EMMC_DEVICE}p$(
  31                         echo "$RET_PARTX" |
  32                         "$TR" -s ' ' | "$TR" '[:upper:]' '[:lower:]' |
  33                         "$GREP" "rootfs" | "$SED" 's/^ //' |
  34                         "$CUT" -d ' ' -f 1)
  35         PART_SYSTEM_DATA=${EMMC_DEVICE}p$(
  36                         echo "$RET_PARTX" |
  37                         "$TR" -s ' ' | "$TR" '[:upper:]' '[:lower:]' |
  38                         "$GREP" "system-data" | "$SED" 's/^ //' |
  39                         "$CUT" -d ' ' -f 1)
  40         PART_USER=${EMMC_DEVICE}p$(
  41                         echo "$RET_PARTX" |
  42                         "$TR" -s ' ' | "$TR" '[:upper:]' '[:lower:]' |
  43                         "$GREP" "user" | "$SED" 's/^ //' |
  44                         "$CUT" -d ' ' -f 1)
  45     fi
  46 }
  47
  48 #------------------------------------------------
  49 #       mount_partitions
  50 #------------------------------------------------
  51 mount_partitions() {
  52     echo "mount partitions"
  53     get_partition_id
  54
  55     "$MOUNT" -t ext4 ${PART_ROOTFS} ${FAKE_ROOT} -o ro
  56     "$MOUNT" -t ext4 ${PART_SYSTEM_DATA} ${FAKE_ROOT}/opt
  57     "$MOUNT" -t ext4 ${PART_USER} ${FAKE_ROOT}/opt/usr
  58
  59     "$MOUNT" -t proc none ${FAKE_ROOT}/proc
  60     "$MOUNT" -t sysfs none ${FAKE_ROOT}/sys
  61     "$MOUNT" -t smackfs smackfs ${FAKE_ROOT}/sys/fs/smackfs
  62     "$MOUNT" -t devtmpfs devtmpfs ${FAKE_ROOT}/dev
  63     "$MOUNT" -t devpts devpts ${FAKE_ROOT}/dev/pts
  64     "$MOUNT" -t tmpfs tmpfs ${FAKE_ROOT}/tmp -o mode=1777,smackfsroot=*
  65 }
  66
  67 #------------------------------------------------
  68 #       umount_partitions
  69 #------------------------------------------------
  70 umount_partitions() {
  71     echo "umount partitions"
  72    "$SYNC"
  73     get_partition_id
  74
  75     "$UMOUNT" ${FAKE_ROOT}/opt/usr
  76     "$UMOUNT" ${FAKE_ROOT}/opt
  77     "$UMOUNT" ${FAKE_ROOT}
  78 }
  79
  80 #------------------------------------------------
  81 #       do_reboot
  82 #------------------------------------------------
  83 do_reboot() {
  84     echo "Reboot"
  85     "$SYNC"
  86     "$REBOOT"
  87     while [ 1 ]
  88     do
  89         sleep 1
  90         echo "."
  91     done
  92 }
  93
  94 #------------------------------------------------
  95 #       system-recovery initrc
  96 #------------------------------------------------
  97 echo "Starting system recovery."
  98 mount_partitions
  99
 100 # For debugging - It should be deleted on Release
 101 /sbin/agetty -l /bin/bash -n --keep-baud 115200,38400,9600 ttyS1 linux &
 102
 103 if [ "z@RECOVERY_GUI@" == "zGUI" ]; then
 104     "$SYSTEM_RECOVERY"
 105 else
 106     $TOUCH ${FAKE_ROOT}/opt/.factoryreset
 107     if [ $? -ne 0 ]; then
 108         echo "Error: failed to put factory reset file flag."
 109     fi
 110 fi
 111 umount_partitions
 112 do_reboot