scripts/fus_rw-init.sh

   1 #!/bin/bash
   2 PATH=/bin:/usr/bin:/sbin:/usr/sbin
   3
   4 WITH_USR_PART=
   5
   6 FAKE_ROOT=/run/upgrade-sysroot
   7
   8 SYNC="/bin/sync"
   9 REBOOT="/sbin/reboot"
  10
  11 INT_LOG_DIR=${FAKE_ROOT}/opt/data/update
  12 INT_LOG_FILE=${INT_LOG_DIR}/fota_internal.log
  13
  14 CAT="/bin/cat"
  15 MOUNT="/bin/mount"
  16 GREP="/bin/grep"
  17 BLKID="/usr/sbin/blkid"
  18
  19 #------------------------------------------------
  20 #       get partition id
  21 #------------------------------------------------
  22 get_partition_id() {
  23     P_SLOT=$([[ $(</proc/cmdline) =~ partition_ab=([ab]) ]]; echo ${BASH_REMATCH[1]})
  24     P_SUFFIX=""
  25
  26     if [ "${P_SLOT}" != "" ]; then
  27         P_SUFFIX="_${P_SLOT}"
  28         echo "Using A/B slot: ${P_SLOT}"
  29     fi
  30
  31     PART_ROOTFS=`/sbin/blkid -t PARTLABEL=rootfs${P_SUFFIX} -o device`
  32     if [ x$PART_ROOTFS = "x" ]
  33     then
  34         PART_ROOTFS=`/sbin/blkid -L rootfs`
  35     fi
  36
  37     PART_SYSTEM_DATA=`/sbin/blkid -t PARTLABEL=system-data -o device`
  38     if [ x$PART_SYSTEM_DATA = "x" ]
  39     then
  40         PART_SYSTEM_DATA=`/sbin/blkid -L system-data`
  41     fi
  42
  43     PART_RAMDISK=`/sbin/blkid -t PARTLABEL=ramdisk${P_SUFFIX} -o device`
  44     if [ x$PART_RAMDISK = "x" ]
  45     then
  46         PART_RAMDISK=`/sbin/blkid -L ramdisk`
  47     fi
  48
  49     PART_HAL=`/sbin/blkid -t PARTLABEL=hal${P_SUFFIX} -o device`
  50     if [ x$PART_HAL = "x" ]
  51     then
  52         PART_HAL=`/sbin/blkid -L hal`
  53     fi
  54
  55     PART_USER=$("$BLKID" --match-token PARTLABEL=user -o device || "$BLKID" --match-token LABEL=user -o device)
  56 }
  57
  58 #------------------------------------------------
  59 #       mount_rootfs
  60 #------------------------------------------------
  61 mount_rootfs()
  62 {
  63         /usr/bin/verityctl create rootfs "${PART_ROOTFS}" "${FAKE_ROOT}"
  64         case $? in
  65             0)
  66                 echo "verifyboot: disabled"
  67                 # do nothing
  68                 ;;
  69             1)
  70                 echo "verityboot: enabled";
  71                 return
  72                 ;;
  73             2)
  74                 echo "verifyboot: enabled but corrupted"
  75                 # should deal with the error like reboot.
  76                 ;;
  77             3)
  78                 echo "verifyboot: disabling"
  79                 ;;
  80         esac
  81         "$MOUNT" -o ro "${PART_ROOTFS}" "${FAKE_ROOT}"
  82 }
  83
  84 #------------------------------------------------
  85 #       mount_partitions
  86 #------------------------------------------------
  87 mount_partitions() {
  88     get_partition_id
  89
  90     mount_rootfs
  91     "$MOUNT" -t proc none ${FAKE_ROOT}/proc
  92     "$MOUNT" -t sysfs none ${FAKE_ROOT}/sys
  93     "$MOUNT" -t devtmpfs devtmpfs ${FAKE_ROOT}/dev
  94     "$MOUNT" -t devpts devpts ${FAKE_ROOT}/dev/pts
  95     "$MOUNT" -t tmpfs tmpfs ${FAKE_ROOT}/tmp
  96 }
  97
  98 #------------------------------------------------
  99 #       do_reboot
 100 #------------------------------------------------
 101 do_reboot() {
 102         echo "Reboot"
 103         "$SYNC"
 104         "$REBOOT"
 105         while [ 1 ]
 106         do
 107                 sleep 1
 108                 echo "."
 109         done
 110 }
 111
 112 #------------------------------------------------
 113 #       do_rw_update
 114 #------------------------------------------------
 115 do_rw_update() {
 116         echo "Change into rw update mode" >> ${INT_LOG_FILE}
 117
 118         /sbin/progress_restart RW &
 119         # Go to system-update.target
 120         if [ $$ = 1 ]; then
 121                 cd ${FAKE_ROOT}
 122                 exec /bin/chroot . /usr/lib/systemd/systemd --unit=system-update.target $@
 123         fi
 124         do_reboot
 125 }
 126
 127 #------------------------------------------------
 128 #       Main Routine Start
 129 #------------------------------------------------
 130 mount_partitions
 131
 132 echo "rw update mode start ..." >> ${INT_LOG_FILE}
 133 "$SYNC"
 134
 135 do_rw_update
 136