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0d5f948934
Change-Id: I7d17db3cb522a52ec2dac688f4bf83fb5ae6a2d1 related CL: http://codereview.chromium.org/3031049/show TEST=(1)Manually built an image using build_image script, which exercised "build_gpt.sh"; (2) manually built a Qemu VM image using "image_to_vm.sh" and verified the VM is bootable (up to login screen); (3) manually built a dev recovery image using "mod_image_for_dev_recovery.sh" and verified image functions properly for dev recovery purpose Review URL: http://codereview.chromium.org/3050039
168 lines
4.3 KiB
Bash
Executable File
168 lines
4.3 KiB
Bash
Executable File
#!/bin/bash
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#
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# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# Load common constants. This should be the first executable line.
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# The path to common.sh should be relative to your script's location.
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. "$(dirname "$0")/common.sh"
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# Load functions and constants for chromeos-install
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. "$(dirname "$0")/chromeos-common.sh"
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# Script must be run inside the chroot.
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restart_in_chroot_if_needed $*
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get_default_board
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# Flags.
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DEFINE_string arch "" \
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"The target architecture (\"arm\" or \"x86\")."
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DEFINE_string board "$DEFAULT_BOARD" \
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"The board to build an image for."
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DEFINE_string arm_extra_bootargs "" \
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"Additional command line options to pass to the ARM kernel."
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DEFINE_integer rootfs_partition_size 1024 \
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"rootfs parition size in MBs."
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# Usage.
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FLAGS_HELP=$(cat <<EOF
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Usage: $(basename $0) [flags] IMAGEDIR OUTDEV
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This takes the image components in IMAGEDIR and creates a bootable,
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GPT-formatted image in OUTDEV. OUTDEV can be a file or block device.
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EOF
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)
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# Parse command line.
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FLAGS "$@" || exit 1
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eval set -- "${FLAGS_ARGV}"
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if [[ -z "$FLAGS_board" ]] ; then
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error "--board is required."
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exit 1
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fi
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if [[ -z "$1" || -z "$2" ]] ; then
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flags_help
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exit 1
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fi
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IMAGEDIR="$1"
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OUTDEV="$2"
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if [[ -n "$FLAGS_arch" ]]; then
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ARCH=${FLAGS_arch}
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else
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# Figure out ARCH from the given toolchain.
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# TODO: Move to common.sh as a function after scripts are switched over.
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TC_ARCH=$(echo "$CHOST" | awk -F'-' '{ print $1 }')
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case "$TC_ARCH" in
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arm*)
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ARCH="arm"
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;;
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*86)
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ARCH="x86"
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;;
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*)
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error "Unable to determine ARCH from toolchain: $CHOST"
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exit 1
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esac
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fi
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# Only now can we die on error. shflags functions leak non-zero error codes,
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# so will die prematurely if 'set -e' is specified before now.
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set -e
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# Die on uninitialized variables.
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set -u
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# Check for missing parts.
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ROOTFS_IMG="${IMAGEDIR}/rootfs.image"
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if [[ ! -s ${ROOTFS_IMG} ]]; then
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error "Can't find ${ROOTFS_IMG}"
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exit 1
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fi
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KERNEL_IMG="${IMAGEDIR}/vmlinuz.image"
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if [[ ! -s ${KERNEL_IMG} ]]; then
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error "Can't find ${KERNEL_IMG}"
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exit 1
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fi
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STATEFUL_IMG="${IMAGEDIR}/stateful_partition.image"
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if [ ! -s ${STATEFUL_IMG} ]; then
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error "Can't find ${STATEFUL_IMG}"
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exit 1
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fi
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OEM_IMG="${IMAGEDIR}/partner_partition.image"
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if [[ ! -s ${OEM_IMG} ]]; then
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error "Can't find ${OEM_IMG}"
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exit 1
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fi
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ESP_IMG="${IMAGEDIR}/esp.image"
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if [ ! -s ${ESP_IMG} ]; then
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error "Can't find ${ESP_IMG}"
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exit 1
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fi
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# We'll need some code to put in the PMBR, for booting on legacy BIOS. Some ARM
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# systems will use a U-Boot script temporarily, but it goes in the same place.
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if [[ "$ARCH" = "arm" ]]; then
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PMBRCODE=/dev/zero
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else
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PMBRCODE=$(readlink -f /usr/share/syslinux/gptmbr.bin)
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fi
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# Create the GPT. This has the side-effect of setting some global vars
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# describing the partition table entries (see the comments in the source).
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install_gpt $OUTDEV $(numsectors $ROOTFS_IMG) $(numsectors $STATEFUL_IMG) \
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$PMBRCODE $(numsectors $ESP_IMG) false $FLAGS_rootfs_partition_size
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if [[ "$ARCH" = "arm" ]]; then
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# assume /dev/mmcblk1. we could not get this from ${OUTDEV}
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DEVICE=1
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MBR_SCRIPT_UIMG=$(make_arm_mbr \
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${START_KERN_A} \
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${NUM_KERN_SECTORS} \
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${DEVICE} \
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"${FLAGS_arm_extra_bootargs}")
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sudo dd bs=1 count=`stat --printf="%s" ${MBR_SCRIPT_UIMG}` \
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if="$MBR_SCRIPT_UIMG" of=${OUTDEV} conv=notrunc
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fi
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# Emit helpful scripts for testers, etc.
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${SCRIPTS_DIR}/emit_gpt_scripts.sh "${OUTDEV}" "${IMAGEDIR}"
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sudo=
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if [ ! -w "$OUTDEV" ] ; then
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# use sudo when writing to a block device.
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sudo=sudo
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fi
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# Now populate the partitions.
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echo "Copying stateful partition..."
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$sudo dd if=${STATEFUL_IMG} of=${OUTDEV} conv=notrunc bs=512 \
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seek=${START_STATEFUL}
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echo "Copying OEM partition..."
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$sudo dd if=${OEM_IMG} of=${OUTDEV} conv=notrunc bs=512 seek=${START_OEM}
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echo "Copying kernel..."
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$sudo dd if=${KERNEL_IMG} of=${OUTDEV} conv=notrunc bs=512 seek=${START_KERN_A}
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echo "Copying rootfs..."
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$sudo dd if=${ROOTFS_IMG} of=${OUTDEV} conv=notrunc bs=512 \
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seek=${START_ROOTFS_A}
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echo "Copying EFI system partition..."
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$sudo dd if=${ESP_IMG} of=${OUTDEV} conv=notrunc bs=512 seek=${START_ESP}
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# Clean up temporary files.
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if [[ -n "${MBR_IMG:-}" ]]; then
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rm "${MBR_IMG}"
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fi
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