Remove obsolete recovery script populate_recovery_payload.sh

populate_recovery_payload.sh

-#!/bin/bash
-#
-# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# Script to populate payload (partition B) of a Chrome OS recovery installer
-# See install_gpt() in chromeos-common.sh for partition size details.
-# Currently, rootfs is set to 1GB and kernel is set to 16MB.
-# As long as the payload is large enough, we'll copy from src_image to
-# dst_image, without ANY version checking.
-
-# Need this script to get default board
-. "$(dirname "$0")/common.sh"
-
-# Need this script for functions related to gpt images.
-. "$(dirname "$0")/chromeos-common.sh"
-
-# We need to be in the chroot to use "gpt" command
-assert_inside_chroot
-
-get_default_board
-
-DEFINE_string board "$DEFAULT_BOARD" \
-  "The board to build an image for." b
-DEFINE_string src_image "" \
-  "Path to a pristine image to be written to a recovery image." s
-DEFINE_string dst_image "" \
-  "Path to a recovery image." d
-DEFINE_boolean yes $FLAGS_FALSE "Answer yes to all prompts. Default: False" y
-
-SCRIPT_NAME="populate_recovery_payload"
-
-# Parse command line
-FLAGS "$@" || exit 1
-eval set -- "${FLAGS_ARGV}"
-
-# Make sure board is set
-if [ -z $FLAGS_board ] ; then
-  setup_board_warning
-  die "${SCRIPT_NAME} failed. No board set"
-fi
-
-# Make sure image path is set
-if [ -z $FLAGS_src_image ] ; then
-  die "${SCRIPT_NAME} failed. No --src_image set"
-fi
-
-if [ -z $FLAGS_dst_image ] ; then
-  die "${SCRIPT_NAME} failed. No --dst_image set"
-fi
-
-# Turn path into an absolute path.
-FLAGS_src_image=`eval readlink -f ${FLAGS_src_image}`
-
-# Abort early if we can't find the image
-if [ ! -f $FLAGS_src_image ] ; then
-  die "${SCRIPT_NAME} failed. No image found at $FLAGS_src_image"
-fi
-
-FLAGS_dst_image=`eval readlink -f ${FLAGS_dst_image}`
-if [ ! -f $FLAGS_dst_image ] ; then
-  die "${SCRIPT_NAME} failed. No image found at $FLAGS_dst_image"
-fi
-
-# Look up partition number
-function get_part_num() {
-  local image_type=$1
-  local part_type=$2
-  local part_num=
-
-  case "${image_type}" in
-    "src" )
-    case "${part_type}" in
-      "rootfs" ) part_num=3;;
-      "kern" ) part_num=2;;
-    esac
-    ;;
-    "dst" )
-    case "${part_type}" in
-      "rootfs" ) part_num=5;;
-      "kern" ) part_num=4;;
-    esac
-    ;;
-  esac
-
-  echo "${part_num}"
-}
-
-# main process begins here.
-
-# Confirm user wants to (re-)populate payload partition
-if [ $FLAGS_yes -ne $FLAGS_TRUE ]; then
-  read -p "Overwriting payload partition of recovery image ${FLAGS_dst_image}; \
-are you sure (y/N)? " SURE
-  SURE="${SURE:0:1}" # Get just the first character
-  if [ "$SURE" != "y" ]; then
-    echo "Ok, better safe than sorry. Abort."
-    exit 1
-  fi
-fi
-echo "About to overwrite payload partition..."
-
-set -e
-
-# Look up partition size and offset for rootfs, kernel on both images.
-# Assume 512-byte sector/block size
-SRC_ROOTFS_PART=$(get_part_num "src" "rootfs")
-SRC_ROOTFS_OFFSET=$(partoffset "${FLAGS_src_image}" ${SRC_ROOTFS_PART})
-SRC_ROOTFS_SECTORS=$(partsize "${FLAGS_src_image}" ${SRC_ROOTFS_PART})
-
-DST_ROOTFS_PART=$(get_part_num "dst" "rootfs")
-DST_ROOTFS_OFFSET=$(partoffset "${FLAGS_dst_image}" ${DST_ROOTFS_PART})
-DST_ROOTFS_SECTORS=$(partsize "${FLAGS_dst_image}" ${DST_ROOTFS_PART})
-
-# Verify source partition is not larger than destination partition
-if [ $SRC_ROOTFS_SECTORS -gt $DST_ROOTFS_SECTORS ]; then
-  echo "Rootfs partition is too large to be copied to payload. Source has \
-${SRC_ROOTFS_SECTORS} sectors while destination only has \
-${DST_ROOTFS_SECTORS} sectors. Abort."
-  exit 1
-fi
-
-SRC_KERN_PART=$(get_part_num "src" "kern")
-SRC_KERN_OFFSET=$(partoffset "${FLAGS_src_image}" ${SRC_KERN_PART})
-SRC_KERN_SECTORS=$(partsize "${FLAGS_src_image}" ${SRC_KERN_PART})
-
-DST_KERN_PART=$(get_part_num "dst" "kern")
-DST_KERN_OFFSET=$(partoffset "${FLAGS_dst_image}" ${DST_KERN_PART})
-DST_KERN_SECTORS=$(partsize "${FLAGS_dst_image}" ${DST_KERN_PART})
-
-if [ $SRC_KERN_SECTORS -gt $DST_KERN_SECTORS ]; then
-  echo "Kernel partition is too large to be copied to payload. Source has \
-${SRC_KERN_SECTORS} sectors while destination only has \
-${DST_KERN_SECTORS} sectors. Abort."
-  exit 1
-fi
-
-# Check if we can use 2MB for faster write
-SECTOR_SIZE=512  # default sector size in bytes
-IDEAL_BLOCK_SIZE=$((2 * 1024 * 1024))  # large sector size in bytes
-ROOTFS_BS=$SECTOR_SIZE
-ROOTFS_COUNT=$SRC_ROOTFS_SECTORS  # number of SECTOR_SIZE sectors
-ROOTFS_SKIP=$SRC_ROOTFS_OFFSET    # number of SECTOR_SIZE sectors
-ROOTFS_SEEK=$DST_ROOTFS_OFFSET    # number of SECTOR_SIZE sectors
-if [ $(( $SRC_ROOTFS_OFFSET % ($IDEAL_BLOCK_SIZE / $SECTOR_SIZE) )) = "0" ] && \
-   [ $(( $SRC_ROOTFS_SECTORS % ($IDEAL_BLOCK_SIZE / $SECTOR_SIZE) )) = "0" ] \
-   && \
-   [ $(( $DST_ROOTFS_OFFSET % ($IDEAL_BLOCK_SIZE / $SECTOR_SIZE) )) = "0" ] && \
-   [ $(( $DST_ROOTFS_SECTORS % ($IDEAL_BLOCK_SIZE / $SECTOR_SIZE) )) = "0" ]; \
-   then
-  ROOTFS_BS=$IDEAL_BLOCK_SIZE  # increase sector size to 2MB
-  # Update number of sectors
-  ROOTFS_COUNT=$(( ($SRC_ROOTFS_SECTORS * $SECTOR_SIZE) / $IDEAL_BLOCK_SIZE ))
-  ROOTFS_SKIP=$(( ($SRC_ROOTFS_OFFSET * $SECTOR_SIZE) / $IDEAL_BLOCK_SIZE ))
-  ROOTFS_SEEK=$(( ($DST_ROOTFS_OFFSET * $SECTOR_SIZE) / $IDEAL_BLOCK_SIZE ))
-  echo "Use 2MB for rootfs block size"
-fi
-
-KERN_BS=$SECTOR_SIZE
-KERN_COUNT=$SRC_KERN_SECTORS  # number of SECTOR_SIZE sectors
-KERN_SKIP=$SRC_KERN_OFFSET    # number of SECTOR_SIZE sectors
-KERN_SEEK=$DST_KERN_OFFSET    # number of SECTOR_SIZE sectors
-if [ $(( $SRC_KERN_OFFSET % ($IDEAL_BLOCK_SIZE / $SECTOR_SIZE) )) = "0" ] && \
-   [ $(( $SRC_KERN_SECTORS % ($IDEAL_BLOCK_SIZE / $SECTOR_SIZE) )) = "0" ] && \
-   [ $(( $DST_KERN_OFFSET % ($IDEAL_BLOCK_SIZE / $SECTOR_SIZE) )) = "0" ] && \
-   [ $(( $DST_KERN_SECTORS % ($IDEAL_BLOCK_SIZE / $SECTOR_SIZE) )) = "0" ]; \
-   then
-  KERN_BS=$IDEAL_BLOCK_SIZE
-  KERN_COUNT=$(( ($SRC_KERN_SECTORS * $SECTOR_SIZE) / $IDEAL_BLOCK_SIZE ))
-  KERN_SKIP=$(( ($SRC_KERN_OFFSET * $SECTOR_SIZE) / $IDEAL_BLOCK_SIZE ))
-  KERN_SEEK=$(( ($DST_KERN_OFFSET * $SECTOR_SIZE) / $IDEAL_BLOCK_SIZE ))
-  echo "Use 2MB for kernel block size"
-fi
-
-# Copy new partitions to dst_image
-echo "Copying rootfs partition to payload ..."
-sudo dd if=$FLAGS_src_image of=$FLAGS_dst_image conv=notrunc bs=$ROOTFS_BS \
-  skip=$ROOTFS_SKIP seek=$ROOTFS_SEEK count=$ROOTFS_COUNT
-
-echo "Copying kernel partition to payload ..."
-sudo dd if=$FLAGS_src_image of=$FLAGS_dst_image conv=notrunc bs=$KERN_BS \
-  skip=$KERN_SKIP seek=$KERN_SEEK count=$KERN_COUNT
-
-echo "New partitions copied to payload. Done."
-exit 0