adding mkefi-agl.sh create boot devices from AGL images for UEFI boot

Change-Id: I0e89fc869c048d6bd1b49904a683f645ca51ebec
Signed-off-by: Dominig ar Foll <dominig.arfoll@fridu.net>

2 files changed, 413 insertions, 0 deletions

diff --git a/scripts/README-mkefi-agl.md b/scripts/README-mkefi-agl.md
new file mode 100644
index 000000000..f415747d8
--- /dev/null
+++ b/scripts/README-mkefi-agl.md
@@ -0,0 +1,16 @@
+## Introduction
+This script will install the AGL distribution on a removable device to boot on Intel UEFI-based computer.
+
+In particular it can create a USB or SD bootable support for (MinnowBoard)[www.minnowboard.org].
+
+Usage:
+
+    mkefi-agl.sh [-v] HDDIMG REMOVABLE_DEVICE
+       -v: verbose debug
+       HDDIMG: the hddimg file to generate the efi disk from
+       REMOVABLE_DEVICE: the block device to write the image to, e.g. /dev/sdh
+
+Example: `mkefi-agl.sh agl-demo-platform-intel-corei7-64.hddimg /dev/sdd`
+
+## Documentation
+Additional documentation: https://wiki.automotivelinux.org/agl-distro/developer_resources_intel
diff --git a/scripts/mkefi-agl.sh b/scripts/mkefi-agl.sh
new file mode 100755
index 000000000..d1cf6f490
--- /dev/null
+++ b/scripts/mkefi-agl.sh
@@ -0,0 +1,397 @@
+#!/bin/sh
+#
+# Copyright (c) 2012, Intel Corporation.
+# All rights reserved.
+#
+# This program is free software;  you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY;  without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+# the GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program;  if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+# Modification from mkefidisk.sh provided by the Yocto project by Dominig 
+# to install Automotive Grade Linux (AGL) on Minnowboard and any PC with UEFI boot
+#
+# changes
+#         - simpler use model
+#         - keep initrd if present
+#         - create a grub config with PARTUID to ease boot from various devices automaticaly
+#         - add a UEFI startup.nsh script for autoboot
+#         - does not allocate swap
+#         
+
+LANG=C
+
+# Set to 1 to enable additional output
+DEBUG=0
+OUT="/dev/null"
+
+#
+# Defaults
+#
+# 20 Mb for the boot partition
+BOOT_SIZE=20
+
+# Cleanup after die()
+cleanup() {
+	debug "Syncing and unmounting devices"
+	# Unmount anything we mounted
+	unmount $ROOTFS_MNT || error "Failed to unmount $ROOTFS_MNT"
+	unmount $BOOTFS_MNT || error "Failed to unmount $BOOTFS_MNT"
+	unmount $HDDIMG_ROOTFS_MNT || error "Failed to unmount $HDDIMG_ROOTFS_MNT"
+	unmount $HDDIMG_MNT || error "Failed to unmount $HDDIMG_MNT"
+
+	# Remove the TMPDIR
+	debug "Removing temporary files"
+	if [ -d "$TMPDIR" ]; then
+		rm -rf $TMPDIR || error "Failed to remove $TMPDIR"
+	fi
+}
+
+trap 'die "Signal Received, Aborting..."' HUP INT TERM
+
+# Logging routines
+WARNINGS=0
+ERRORS=0
+CLEAR="$(tput sgr0)"
+INFO="$(tput bold)"
+RED="$(tput setaf 1)$(tput bold)"
+GREEN="$(tput setaf 2)$(tput bold)"
+YELLOW="$(tput setaf 3)$(tput bold)"
+info() {
+	echo "${INFO}$1${CLEAR}"
+}
+error() {
+	ERRORS=$((ERRORS+1))
+	echo "${RED}$1${CLEAR}"
+}
+warn() {
+	WARNINGS=$((WARNINGS+1))
+	echo "${YELLOW}$1${CLEAR}"
+}
+success() {
+	echo "${GREEN}$1${CLEAR}"
+}
+die() {
+	error "$1"
+	cleanup
+	exit 1
+}
+debug() {
+	if [ $DEBUG -eq 1 ]; then
+		echo "$1"
+	fi
+}
+
+usage() {
+	echo "Install AGL on a removable device to boot on IA UEFI based computer"
+	echo "In particular is can create USB or SD bootable support for Minnowboard"
+	echo ""
+	echo "Usage: $(basename $0) [-v] HDDIMG REMOVABLE_DEVICE"
+	echo "       -v: Verbose debug"
+	echo "       HDDIMG: The hddimg file to generate the efi disk from"
+	echo "       REMOVABLE_DEVICE: The block device to write the image to, e.g. /dev/sdh"
+	echo "ex:"
+	echo "   mkefi-agl.sh   agl-demo-platform-intel-corei7-64.hddimg /dev/sdd"
+	exit 1
+}
+
+image_details() {
+	IMG=$1
+	info "Image details"
+	echo "    image: $(stat --printf '%N\n' $IMG)"
+	echo "     size: $(stat -L --printf '%s bytes\n' $IMG)"
+	echo " modified: $(stat -L --printf '%y\n' $IMG)"
+	echo "     type: $(file -L -b $IMG)"
+	echo ""
+}
+
+device_details() {
+	DEV=$1
+	BLOCK_SIZE=512
+
+	info "Device details"
+	echo "  device: $DEVICE"
+	if [ -f "/sys/class/block/$DEV/device/vendor" ]; then
+		echo "  vendor: $(cat /sys/class/block/$DEV/device/vendor)"
+	else
+		echo "  vendor: UNKOWN"
+	fi
+	if [ -f "/sys/class/block/$DEV/device/model" ]; then
+		echo "   model: $(cat /sys/class/block/$DEV/device/model)"
+	else
+		echo "   model: UNKNOWN"
+	fi
+	if [ -f "/sys/class/block/$DEV/size" ]; then
+		echo "    size: $(($(cat /sys/class/block/$DEV/size) * $BLOCK_SIZE)) bytes"
+	else
+		echo "    size: UNKNOWN"
+	fi
+	echo ""
+}
+
+unmount_device() {
+	grep -q $DEVICE /proc/mounts
+	if [ $? -eq 0 ]; then
+		warn "$DEVICE listed in /proc/mounts, attempting to unmount"
+		umount $DEVICE* 2>/dev/null
+		return $?
+	fi
+	return 0
+}
+
+unmount() {
+	if [ "$1" = "" ] ; then
+		return 0
+	fi
+	grep -q $1 /proc/mounts
+	if [ $? -eq 0 ]; then
+		debug "Unmounting $1"
+		umount $1
+		return $?
+	fi
+	return 0
+}
+
+#
+# Parse and validate arguments
+#
+if [ "$1" != "-v" ] && [ $# -ne 2 ]; then
+        usage
+fi
+if [ "$1" == "-v" ] && [ $# -ne 3 ]; then
+        usage
+fi
+
+if [ "$1" = "-v" ] ; then
+	DEBUG=1
+	OUT="1"
+	shift
+fi
+
+HDDIMG=$1
+DEVICE=$2
+
+LINK=$(readlink $DEVICE)
+if [ $? -eq 0 ]; then
+	DEVICE="$LINK"
+fi
+
+if [ ! -w "$DEVICE" ]; then
+	if [ ! -e "${DEVICE}" ] ; then
+		die "Device $DEVICE cannot be found"
+	else
+		die "Device $DEVICE is not writable (need to run under sudo?)"
+	fi
+fi
+
+if [ ! -e "$HDDIMG" ]; then
+	die "HDDIMG $HDDIMG does not exist"
+fi
+
+#
+# Ensure the hddimg is not mounted
+#
+unmount "$HDDIMG" || die "Failed to unmount $HDDIMG"
+
+#
+# Check if any $DEVICE partitions are mounted
+#
+unmount_device || die "Failed to unmount $DEVICE"
+
+#
+# Confirm device with user
+#
+image_details $HDDIMG
+device_details $(basename $DEVICE)
+echo -n "${INFO}Prepare EFI image on $DEVICE [y/N]?${CLEAR} "
+read RESPONSE
+if [ "$RESPONSE" != "y" ]; then
+	echo "Image creation aborted"
+	exit 0
+fi
+
+
+#
+# Prepare the temporary working space
+#
+TMPDIR=$(mktemp -d mkefidisk-XXX) || die "Failed to create temporary mounting directory."
+HDDIMG_MNT=$TMPDIR/hddimg
+HDDIMG_ROOTFS_MNT=$TMPDIR/hddimg_rootfs
+ROOTFS_MNT=$TMPDIR/rootfs
+BOOTFS_MNT=$TMPDIR/bootfs
+mkdir $HDDIMG_MNT || die "Failed to create $HDDIMG_MNT"
+mkdir $HDDIMG_ROOTFS_MNT || die "Failed to create $HDDIMG_ROOTFS_MNT"
+mkdir $ROOTFS_MNT || die "Failed to create $ROOTFS_MNT"
+mkdir $BOOTFS_MNT || die "Failed to create $BOOTFS_MNT"
+
+
+#
+# Partition $DEVICE
+#
+DEVICE_SIZE=$(parted -s $DEVICE unit mb print | grep ^Disk | cut -d" " -f 3 | sed -e "s/MB//")
+# If the device size is not reported there may not be a valid label
+if [ "$DEVICE_SIZE" = "" ] ; then
+	parted -s $DEVICE mklabel msdos || die "Failed to create MSDOS partition table"
+	DEVICE_SIZE=$(parted -s $DEVICE unit mb print | grep ^Disk | cut -d" " -f 3 | sed -e "s/MB//")
+fi
+ROOTFS_SIZE=$((DEVICE_SIZE-BOOT_SIZE))
+ROOTFS_START=$((BOOT_SIZE))
+ROOTFS_END=$((ROOTFS_START+ROOTFS_SIZE))
+
+# MMC devices use a partition prefix character 'p'
+PART_PREFIX=""
+if [ ! "${DEVICE#/dev/mmcblk}" = "${DEVICE}" ] || [ ! "${DEVICE#/dev/loop}" = "${DEVICE}" ]; then
+	PART_PREFIX="p"
+fi
+BOOTFS=$DEVICE${PART_PREFIX}1
+ROOTFS=$DEVICE${PART_PREFIX}2
+
+TARGET_PART_PREFIX=""
+if [ ! "${TARGET_DEVICE#/dev/mmcblk}" = "${TARGET_DEVICE}" ]; then
+	TARGET_PART_PREFIX="p"
+fi
+TARGET_ROOTFS=$TARGET_DEVICE${TARGET_PART_PREFIX}2
+
+echo ""
+info "Boot partition size:   $BOOT_SIZE MB ($BOOTFS)"
+info "ROOTFS partition size: $ROOTFS_SIZE MB ($ROOTFS)"
+echo ""
+
+# Use MSDOS by default as GPT cannot be reliably distributed in disk image form
+# as it requires the backup table to be on the last block of the device, which
+# of course varies from device to device.
+
+info "Partitioning installation media ($DEVICE)"
+
+debug "Deleting partition table on $DEVICE"
+dd if=/dev/zero of=$DEVICE bs=512 count=2 >$OUT 2>&1 || die "Failed to zero beginning of $DEVICE"
+
+debug "Creating new partition table (MSDOS) on $DEVICE"
+parted -s $DEVICE mklabel msdos >$OUT 2>&1 || die "Failed to create MSDOS partition table"
+
+debug "Creating boot partition on $BOOTFS"
+parted -s $DEVICE mkpart primary 0% $BOOT_SIZE >$OUT 2>&1 || die "Failed to create BOOT partition"
+
+debug "Enabling boot flag on $BOOTFS"
+parted -s $DEVICE set 1 boot on >$OUT 2>&1 || die "Failed to enable boot flag"
+
+debug "Creating ROOTFS partition on $ROOTFS"
+parted -s $DEVICE mkpart primary $ROOTFS_START $ROOTFS_END >$OUT 2>&1 || die "Failed to create ROOTFS partition"
+
+# as blkid does not provide PARTUUID on Ubuntu LTS 14.04 we myst hack via fdisk
+#ROOTFS_PARTUUID=$(blkid |grep -e "$ROOTFS" |sed -n 's/^.*PARTUUID=/PARTUUID=/p')
+export LC_ALL=C
+ROOTFS_DISKID=$(fdisk -l "$DEVICE" | grep -e "Disk identifier" | sed -n 's/^.*Disk identifier: 0x/PARTUUID=/p')
+if [ $ROOTFS_DISKID == "" ]; then
+    die "Failed to read DISKID"
+fi
+ROOTFS_PARTUUID="$ROOTFS_DISKID-02"
+debug "PARTUUID for ROOTFS in grub.conf is $ROOTFS_PARTUUID"
+
+if [ $DEBUG -eq 1 ]; then
+	parted -s $DEVICE print
+fi
+
+
+#
+# Check if any $DEVICE partitions are mounted after partitioning
+#
+unmount_device || die "Failed to unmount $DEVICE partitions"
+
+
+#
+# Format $DEVICE partitions
+#
+info "Formatting partitions"
+debug "Formatting $BOOTFS as vfat"
+if [ ! "${DEVICE#/dev/loop}" = "${DEVICE}" ]; then
+	mkfs.vfat -I $BOOTFS -n "EFI" >$OUT 2>&1 || die "Failed to format $BOOTFS"
+else
+	mkfs.vfat $BOOTFS -n "EFI" >$OUT 2>&1 || die "Failed to format $BOOTFS"
+fi
+
+debug "Formatting $ROOTFS as ext3"
+mkfs.ext3 -F $ROOTFS -L "ROOT" >$OUT 2>&1 || die "Failed to format $ROOTFS"
+
+
+#
+# Installing to $DEVICE
+#
+debug "Mounting images and device in preparation for installation"
+mount -o loop $HDDIMG $HDDIMG_MNT >$OUT 2>&1 || error "Failed to mount $HDDIMG"
+mount -o loop $HDDIMG_MNT/rootfs.img $HDDIMG_ROOTFS_MNT >$OUT 2>&1 || error "Failed to mount rootfs.img"
+mount $ROOTFS $ROOTFS_MNT >$OUT 2>&1 || error "Failed to mount $ROOTFS on $ROOTFS_MNT"
+mount $BOOTFS $BOOTFS_MNT >$OUT 2>&1 || error "Failed to mount $BOOTFS on $BOOTFS_MNT"
+
+info "Preparing boot partition"
+EFIDIR="$BOOTFS_MNT/EFI/BOOT"
+cp $HDDIMG_MNT/vmlinuz $BOOTFS_MNT >$OUT 2>&1 || error "Failed to copy vmlinuz"
+if [ -f $HDDIMG_MNT/initrd ]; then
+  cp $HDDIMG_MNT/initrd $BOOTFS_MNT >$OUT 2>&1 || error "Failed to copy initrd"
+fi
+echo "bootx64.efi" > $BOOTFS_MNT/startup.nsh || error "Failed to create startup.nsh"
+# Copy the efi loader and configs (booti*.efi and grub.cfg if it exists)
+cp -r $HDDIMG_MNT/EFI $BOOTFS_MNT >$OUT 2>&1 || error "Failed to copy EFI dir"
+# Silently ignore a missing gummiboot loader dir (we might just be a GRUB image)
+cp -r $HDDIMG_MNT/loader $BOOTFS_MNT >$OUT 2>&1
+
+# Update the boot loaders configurations for an installed image
+# Remove any existing root= kernel parameters and:
+# o Add a root= parameter with the target rootfs
+# o Specify ro so fsck can be run during boot
+# o Specify rootwait in case the target media is an asyncronous block device
+#   such as MMC or USB disks
+# o Specify "quiet" to minimize boot time when using slow serial consoles
+
+# Look for a GRUB installation
+GRUB_CFG="$EFIDIR/grub.cfg"
+if [ -e "$GRUB_CFG" ]; then
+	info "Configuring GRUB"
+	# Delete the install entry
+	sed -i "/menuentry 'install'/,/^}/d" $GRUB_CFG
+	# Delete any LABEL= strings
+	sed -i "s/ LABEL=[^ ]*/ /" $GRUB_CFG
+
+	sed -i "s@ root=[^ ]*@ @" $GRUB_CFG
+	sed -i "s@vmlinuz @vmlinuz root=$ROOTFS_PARTUUID ro rootwait quiet @" $GRUB_CFG
+fi
+
+
+# Ensure we have at least one EFI bootloader configured
+if [ ! -e $GRUB_CFG ] ; then
+	die "No EFI bootloader configuration found"
+fi
+
+info "Copying ROOTFS files (this may take a while)"
+cp -a $HDDIMG_ROOTFS_MNT/* $ROOTFS_MNT >$OUT 2>&1 || die "Root FS copy failed"
+
+# We dont want udev to mount our root device while we're booting...
+if [ -d $ROOTFS_MNT/etc/udev/ ] ; then
+	echo "$TARGET_DEVICE" >> $ROOTFS_MNT/etc/udev/mount.blacklist
+fi
+
+
+# Call cleanup to unmount devices and images and remove the TMPDIR
+cleanup
+
+echo ""
+if [ $WARNINGS -ne 0 ] && [ $ERRORS -eq 0 ]; then
+	echo "${YELLOW}Installation completed with warnings${CLEAR}"
+	echo "${YELLOW}Warnings: $WARNINGS${CLEAR}"
+elif [ $ERRORS -ne 0 ]; then
+	echo "${RED}Installation encountered errors${CLEAR}"
+	echo "${RED}Errors: $ERRORS${CLEAR}"
+	echo "${YELLOW}Warnings: $WARNINGS${CLEAR}"
+else
+	success "Installation completed successfully"
+fi
+echo ""