From faa2a29a2d7624485787e67a560d8c1263cb5a46 Mon Sep 17 00:00:00 2001 From: Darren Hart Date: Tue, 18 Sep 2012 11:45:14 -0700 Subject: mkefidisk.sh: Add script to do an EFI install on the host Sometimes it is convenient to prepare a bootable image from the host rather than using a live-image to install to a disk on the target. This script takes a live image as input, partitions a device, and performs the installation just as the installer would if run on the target. (From OE-Core rev: 7225c6739f9f1e51741a42437692868165aa1dfe) Signed-off-by: Darren Hart Signed-off-by: Saul Wold Signed-off-by: Richard Purdie --- scripts/contrib/mkefidisk.sh | 255 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 255 insertions(+) create mode 100755 scripts/contrib/mkefidisk.sh diff --git a/scripts/contrib/mkefidisk.sh b/scripts/contrib/mkefidisk.sh new file mode 100755 index 0000000000..38e22176e3 --- /dev/null +++ b/scripts/contrib/mkefidisk.sh @@ -0,0 +1,255 @@ +#!/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 +# + +# +# Defaults +# +# 20 Mb for the boot partition +BOOT_SIZE=20 +# 5% for swap +SWAP_RATIO=5 + +function usage() { + echo "Usage: $(basename $0) DEVICE HDDIMG TARGET_DEVICE" + echo " DEVICE: The device to write the image to, e.g. /dev/sdh" + echo " HDDIMG: The hddimg file to generate the efi disk from" + echo " TARGET_DEVICE: The device the target will boot from, e.g. /dev/mmcblk0" +} + +function image_details() { + IMG=$1 + echo "Image details" + echo "=============" + 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 "" +} + +function device_details() { + DEV=$1 + BLOCK_SIZE=512 + + echo "Device details" + echo "==============" + 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 "" +} + + +# +# Parse and validate arguments +# +if [ $# -ne 3 ]; then + usage + exit 1 +fi + +DEVICE=$1 +HDDIMG=$2 +TARGET_DEVICE=$3 + +if [ ! -w "$DEVICE" ]; then + echo "ERROR: Device $DEVICE does not exist or is not writable" + usage + exit 1 +fi + +if [ ! -e "$HDDIMG" ]; then + echo "ERROR: HDDIMG $HDDIMG does not exist" + usage + exit 1 +fi + + +# +# Check if any $DEVICE partitions are mounted +# +grep -q $DEVICE /proc/mounts +if [ $? -eq 0 ]; then + echo "ERROR: $DEVICE partitions mounted:" + grep $DEVICE /proc/mounts | cut -f 1 -d " " + echo "Unmount the partitions listed and try again." + exit 1 +fi + + +# +# Confirm device with user +# +image_details $HDDIMG +device_details $(basename $DEVICE) +echo -n "Prepare EFI image on $DEVICE [y/N]? " +read RESPONSE +if [ "$RESPONSE" != "y" ]; then + echo "Image creation aborted" + exit 0 +fi + + +# +# Partition $DEVICE +# +DEVICE_SIZE=$(parted $DEVICE unit mb print | grep Disk | cut -d" " -f 3 | sed -e "s/MB//") +SWAP_SIZE=$((DEVICE_SIZE*SWAP_RATIO/100)) +ROOTFS_SIZE=$((DEVICE_SIZE-BOOT_SIZE-SWAP_SIZE)) +ROOTFS_START=$((BOOT_SIZE)) +ROOTFS_END=$((ROOTFS_START+ROOTFS_SIZE)) +SWAP_START=$((ROOTFS_END)) + +# MMC devices are special in a couple of ways +# 1) they use a partition prefix character 'p' +# 2) they are detected asynchronously (need ROOTWAIT) +PART_PREFIX="" +if [ ! "${DEVICE#/dev/mmcblk}" = "${DEVICE}" ]; then + PART_PREFIX="p" +fi +BOOTFS=$DEVICE${PART_PREFIX}1 +ROOTFS=$DEVICE${PART_PREFIX}2 +SWAP=$DEVICE${PART_PREFIX}3 + +ROOTWAIT="" +TARGET_PART_PREFIX="" +if [ ! "${TARGET_DEVICE#/dev/mmcblk}" = "${TARGET_DEVICE}" ]; then + TARGET_PART_PREFIX="p" + ROOTWAIT="rootwait" +fi +TARGET_ROOTFS=$TARGET_DEVICE${TARGET_PART_PREFIX}2 +TARGET_SWAP=$TARGET_DEVICE${TARGET_PART_PREFIX}3 + +echo "*****************" +echo "Boot partition size: $BOOT_SIZE MB ($BOOTFS)" +echo "ROOTFS partition size: $ROOTFS_SIZE MB ($ROOTFS)" +echo "Swap partition size: $SWAP_SIZE MB ($SWAP)" +echo "*****************" +echo "Deleting partition table on $DEVICE ..." +dd if=/dev/zero of=$DEVICE bs=512 count=2 + +echo "Creating new partition table (GPT) on $DEVICE ..." +parted $DEVICE mklabel gpt + +echo "Creating boot partition on $BOOTFS" +parted $DEVICE mkpart primary 0% $BOOT_SIZE + +echo "Creating ROOTFS partition on $ROOTFS" +parted $DEVICE mkpart primary $ROOTFS_START $ROOTFS_END + +echo "Creating swap partition on $SWAP" +parted $DEVICE mkpart primary $SWAP_START 100% + +parted $DEVICE print + + +# +# Format $DEVICE partitions +# +echo "" +echo "Formatting $BOOTFS as vfat..." +mkfs.vfat $BOOTFS + +echo "Formatting $ROOTFS as ext3..." +mkfs.ext3 $ROOTFS + +echo "Formatting swap partition...($SWAP)" +mkswap $SWAP + + +# +# Installing to $DEVICE +# +echo "" +echo "Mounting images and device in preparation for installation..." +TMPDIR=$(mktemp -d mkefidisk-XXX) +if [ $? -ne 0 ]; then + echo "ERROR: Failed to create temporary mounting directory." + exit 1 +fi +HDDIMG_MNT=$TMPDIR/hddimg +HDDIMG_ROOTFS_MNT=$TMPDIR/hddimg_rootfs +ROOTFS_MNT=$TMPDIR/rootfs +BOOTFS_MNT=$TMPDIR/bootfs +mkdir $HDDIMG_MNT +mkdir $HDDIMG_ROOTFS_MNT +mkdir $ROOTFS_MNT +mkdir $BOOTFS_MNT + +mount -o loop $HDDIMG $HDDIMG_MNT +mount -o loop $HDDIMG_MNT/rootfs.img $HDDIMG_ROOTFS_MNT +mount $ROOTFS $ROOTFS_MNT +mount $BOOTFS $BOOTFS_MNT + +echo "Copying ROOTFS files..." +cp -a $HDDIMG_ROOTFS_MNT/* $ROOTFS_MNT + +echo "$TARGET_SWAP swap swap defaults 0 0" >> $ROOTFS_MNT/etc/fstab + +# 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 + +umount $ROOTFS_MNT +umount $HDDIMG_ROOTFS_MNT + +echo "Preparing boot partition..." +EFIDIR="$BOOTFS_MNT/EFI/BOOT" +mkdir -p $EFIDIR +GRUBCFG="$EFIDIR/grub.cfg" + +cp $HDDIMG_MNT/vmlinuz $BOOTFS_MNT +# Copy the efi loader and config (booti*.efi and grub.cfg) +cp $HDDIMG_MNT/EFI/BOOT/* $EFIDIR + +# Update grub config for the installed image +# Delete the install entry +sed -i "/menuentry 'install'/,/^}/d" $GRUBCFG +# Delete the initrd lines +sed -i "/initrd /d" $GRUBCFG +# Delete any LABEL= strings +sed -i "s/ LABEL=[^ ]*/ /" $GRUBCFG +# Replace the ramdisk root with the install device and include other options +sed -i "s@ root=[^ ]*@ root=$TARGET_ROOTFS rw $ROOTWAIT quiet@" $GRUBCFG + +# Provide a startup.nsh script for older firmware with non-standard boot +# directories and paths. +echo "bootia32.efi" > $BOOTFS_MNT/startup.nsh + +umount $BOOTFS_MNT +umount $HDDIMG_MNT +rm -rf $TMPDIR +sync + +echo "Installation complete." -- cgit v1.2.3-54-g00ecf