Add init_resize.sh script

Script is added to mendersoftware repository,
instead of being downloaded from external
private repository.

Issues: MEN-2089

Signed-off-by: Adam Podogrocki a.podogrocki@gmail.com

files/init_resize.sh

@@ -0,0 +1,108 @@
+#!/bin/sh
+
+reboot_pi () {
+  umount /uboot
+  sync
+  echo b > /proc/sysrq-trigger
+  sleep 5
+  exit 0
+}
+
+check_commands () {
+  if ! command -v whiptail > /dev/null; then
+      FAIL_REASON="whiptail not found"
+      sleep 5
+      return 1
+  fi
+  for COMMAND in grep cut sed parted fdisk; do
+    if ! command -v $COMMAND > /dev/null; then
+      FAIL_REASON="$COMMAND not found"
+      return 1
+    fi
+  done
+  return 0
+}
+
+get_variables () {
+  # /sys/block/mmcblk0/mmcblk0p4/
+  ROOT_PART_NAME="mmcblk0p4"
+  ROOT_DEV_NAME="mmcblk0"
+  ROOT_DEV="/dev/${ROOT_DEV_NAME}"
+  ROOT_PART_NUM=`cat /sys/block/${ROOT_DEV_NAME}/${ROOT_PART_NAME}/partition`
+
+  BOOT_PART_DEV=`cat /proc/mounts | grep " /uboot " | cut -d " " -f 1`
+  BOOT_PART_NAME=`echo $BOOT_PART_DEV | cut -d "/" -f 3`
+  BOOT_DEV_NAME=`echo /sys/block/*/${BOOT_PART_NAME} | cut -d "/" -f 4`
+  BOOT_PART_NUM=`cat /sys/block/${BOOT_DEV_NAME}/${BOOT_PART_NAME}/partition`
+
+  ROOT_DEV_SIZE=`cat /sys/block/${ROOT_DEV_NAME}/size`
+  TARGET_END=`expr $ROOT_DEV_SIZE - 1`
+
+  PARTITION_TABLE=`parted -m $ROOT_DEV unit s print | tr -d 's'`
+
+  LAST_PART_NUM=`echo "$PARTITION_TABLE" | tail -n 1 | cut -d ":" -f 1`
+
+  ROOT_PART_LINE=`echo "$PARTITION_TABLE" | grep -e "^${ROOT_PART_NUM}:"`
+  ROOT_PART_START=`echo $ROOT_PART_LINE | cut -d ":" -f 2`
+  ROOT_PART_END=`echo $ROOT_PART_LINE | cut -d ":" -f 3`
+}
+
+check_variables () {
+  if [ $ROOT_PART_NUM -ne $LAST_PART_NUM ]; then
+    FAIL_REASON="Data partition should be last partition"
+    return 1
+  fi
+
+  if [ $ROOT_PART_END -gt $TARGET_END ]; then
+    FAIL_REASON="Data partition runs past the end of device"
+    return 1
+  fi
+
+  if [ ! -b $ROOT_DEV ] || [ ! -b $ROOT_PART_DEV ] || [ ! -b $BOOT_PART_DEV ] ; then
+    FAIL_REASON="Could not determine partitions"
+    return 1
+  fi
+}
+
+main () {
+  get_variables
+
+  if ! check_variables; then
+    return 1
+  fi
+
+  if [ $ROOT_PART_END -eq $TARGET_END ]; then
+    reboot_pi
+  fi
+
+if ! parted -m $ROOT_DEV u s resizepart $ROOT_PART_NUM $TARGET_END; then
+    FAIL_REASON="Data partition resize failed"
+    return 1
+  fi
+
+  return 0
+}
+
+mount -t proc proc /proc
+mount -t sysfs sys /sys
+
+mount /uboot
+sed -i 's| init=/usr/lib/raspi-config/init_resize.sh||' /uboot/cmdline.txt
+mount /uboot -o remount,ro
+sync
+
+echo 1 > /proc/sys/kernel/sysrq
+
+if ! check_commands; then
+  reboot_pi
+fi
+
+if main; then
+  whiptail --infobox "Resized data partition. Rebooting in 5 seconds..." 20 60
+  sleep 5
+else
+  sleep 5
+  whiptail --msgbox "Could not expand filesystem, please try raspi-config.\n${FAIL_REASON}" 20 60
+fi
+
+reboot_pi

rpi3-convert-stage-5.sh

@@ -15,6 +15,7 @@
 #    limitations under the License.
 
 application_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+files_dir=${application_dir}/files
 output_dir=${application_dir}/output
 uboot_dir=${output_dir}/uboot-mender
 bin_dir_pi=${output_dir}/bin/raspberrypi
@@ -68,9 +69,6 @@ build_uboot_files() {
 
   $uboot_dir/tools/mkimage -A arm -T script -C none -n "Boot script" -d "boot.cmd" boot.scr
 
-  wget -q -O $bin_dir_pi/init_resize.sh \
-    https://raw.githubusercontent.com/mirzak/mender-conversion-tools/mirza/wip/bin/raspberrypi/init_resize.sh
-
   cp -t $bin_dir_pi $uboot_dir/boot.scr $uboot_dir/tools/env/fw_printenv $uboot_dir/u-boot.bin
 
   cd $output_dir
@@ -137,7 +135,7 @@ install_files() {
 
   # Override init script to expand the data part instead of rootfs, which it
   # normally expands in standard Raspberry Pi distributions.
-  sudo install -m 755 ${bin_dir_pi}/init_resize.sh \
+  sudo install -m 755 ${files_dir}/init_resize.sh \
       ${rootfs_dir}/usr/lib/raspi-config/init_resize.sh
 }