256 lines
6.3 KiB
Bash
Executable File
256 lines
6.3 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (c) 2012, Intel Corporation.
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# All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
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# the GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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#
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# Defaults
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#
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# 20 Mb for the boot partition
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BOOT_SIZE=20
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# 5% for swap
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SWAP_RATIO=5
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function usage() {
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echo "Usage: $(basename $0) DEVICE HDDIMG TARGET_DEVICE"
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echo " DEVICE: The device to write the image to, e.g. /dev/sdh"
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echo " HDDIMG: The hddimg file to generate the efi disk from"
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echo " TARGET_DEVICE: The device the target will boot from, e.g. /dev/mmcblk0"
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}
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function image_details() {
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IMG=$1
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echo "Image details"
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echo "============="
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echo " image: $(stat --printf '%N\n' $IMG)"
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echo " size: $(stat -L --printf '%s bytes\n' $IMG)"
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echo " modified: $(stat -L --printf '%y\n' $IMG)"
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echo " type: $(file -L -b $IMG)"
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echo ""
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}
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function device_details() {
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DEV=$1
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BLOCK_SIZE=512
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echo "Device details"
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echo "=============="
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echo " device: $DEVICE"
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if [ -f "/sys/class/block/$DEV/device/vendor" ]; then
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echo " vendor: $(cat /sys/class/block/$DEV/device/vendor)"
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else
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echo " vendor: UNKOWN"
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fi
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if [ -f "/sys/class/block/$DEV/device/model" ]; then
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echo " model: $(cat /sys/class/block/$DEV/device/model)"
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else
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echo " model: UNKNOWN"
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fi
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if [ -f "/sys/class/block/$DEV/size" ]; then
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echo " size: $[$(cat /sys/class/block/$DEV/size)*BLOCK_SIZE] bytes"
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else
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echo " size: UNKNOWN"
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fi
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echo ""
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}
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#
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# Parse and validate arguments
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#
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if [ $# -ne 3 ]; then
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usage
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exit 1
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fi
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DEVICE=$1
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HDDIMG=$2
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TARGET_DEVICE=$3
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if [ ! -w "$DEVICE" ]; then
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echo "ERROR: Device $DEVICE does not exist or is not writable"
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usage
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exit 1
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fi
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if [ ! -e "$HDDIMG" ]; then
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echo "ERROR: HDDIMG $HDDIMG does not exist"
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usage
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exit 1
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fi
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#
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# Check if any $DEVICE partitions are mounted
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#
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grep -q $DEVICE /proc/mounts
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if [ $? -eq 0 ]; then
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echo "ERROR: $DEVICE partitions mounted:"
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grep $DEVICE /proc/mounts | cut -f 1 -d " "
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echo "Unmount the partitions listed and try again."
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exit 1
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fi
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#
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# Confirm device with user
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#
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image_details $HDDIMG
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device_details $(basename $DEVICE)
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echo -n "Prepare EFI image on $DEVICE [y/N]? "
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read RESPONSE
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if [ "$RESPONSE" != "y" ]; then
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echo "Image creation aborted"
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exit 0
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fi
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#
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# Partition $DEVICE
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#
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DEVICE_SIZE=$(parted $DEVICE unit mb print | grep Disk | cut -d" " -f 3 | sed -e "s/MB//")
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SWAP_SIZE=$((DEVICE_SIZE*SWAP_RATIO/100))
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ROOTFS_SIZE=$((DEVICE_SIZE-BOOT_SIZE-SWAP_SIZE))
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ROOTFS_START=$((BOOT_SIZE))
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ROOTFS_END=$((ROOTFS_START+ROOTFS_SIZE))
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SWAP_START=$((ROOTFS_END))
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# MMC devices are special in a couple of ways
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# 1) they use a partition prefix character 'p'
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# 2) they are detected asynchronously (need ROOTWAIT)
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PART_PREFIX=""
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if [ ! "${DEVICE#/dev/mmcblk}" = "${DEVICE}" ]; then
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PART_PREFIX="p"
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fi
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BOOTFS=$DEVICE${PART_PREFIX}1
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ROOTFS=$DEVICE${PART_PREFIX}2
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SWAP=$DEVICE${PART_PREFIX}3
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ROOTWAIT=""
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TARGET_PART_PREFIX=""
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if [ ! "${TARGET_DEVICE#/dev/mmcblk}" = "${TARGET_DEVICE}" ]; then
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TARGET_PART_PREFIX="p"
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ROOTWAIT="rootwait"
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fi
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TARGET_ROOTFS=$TARGET_DEVICE${TARGET_PART_PREFIX}2
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TARGET_SWAP=$TARGET_DEVICE${TARGET_PART_PREFIX}3
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echo "*****************"
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echo "Boot partition size: $BOOT_SIZE MB ($BOOTFS)"
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echo "ROOTFS partition size: $ROOTFS_SIZE MB ($ROOTFS)"
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echo "Swap partition size: $SWAP_SIZE MB ($SWAP)"
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echo "*****************"
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echo "Deleting partition table on $DEVICE ..."
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dd if=/dev/zero of=$DEVICE bs=512 count=2
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echo "Creating new partition table (GPT) on $DEVICE ..."
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parted $DEVICE mklabel gpt
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echo "Creating boot partition on $BOOTFS"
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parted $DEVICE mkpart primary 0% $BOOT_SIZE
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echo "Creating ROOTFS partition on $ROOTFS"
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parted $DEVICE mkpart primary $ROOTFS_START $ROOTFS_END
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echo "Creating swap partition on $SWAP"
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parted $DEVICE mkpart primary $SWAP_START 100%
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parted $DEVICE print
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#
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# Format $DEVICE partitions
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#
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echo ""
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echo "Formatting $BOOTFS as vfat..."
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mkfs.vfat $BOOTFS
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echo "Formatting $ROOTFS as ext3..."
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mkfs.ext3 $ROOTFS
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echo "Formatting swap partition...($SWAP)"
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mkswap $SWAP
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#
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# Installing to $DEVICE
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#
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echo ""
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echo "Mounting images and device in preparation for installation..."
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TMPDIR=$(mktemp -d mkefidisk-XXX)
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if [ $? -ne 0 ]; then
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echo "ERROR: Failed to create temporary mounting directory."
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exit 1
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fi
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HDDIMG_MNT=$TMPDIR/hddimg
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HDDIMG_ROOTFS_MNT=$TMPDIR/hddimg_rootfs
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ROOTFS_MNT=$TMPDIR/rootfs
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BOOTFS_MNT=$TMPDIR/bootfs
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mkdir $HDDIMG_MNT
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mkdir $HDDIMG_ROOTFS_MNT
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mkdir $ROOTFS_MNT
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mkdir $BOOTFS_MNT
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mount -o loop $HDDIMG $HDDIMG_MNT
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mount -o loop $HDDIMG_MNT/rootfs.img $HDDIMG_ROOTFS_MNT
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mount $ROOTFS $ROOTFS_MNT
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mount $BOOTFS $BOOTFS_MNT
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echo "Copying ROOTFS files..."
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cp -a $HDDIMG_ROOTFS_MNT/* $ROOTFS_MNT
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echo "$TARGET_SWAP swap swap defaults 0 0" >> $ROOTFS_MNT/etc/fstab
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# We dont want udev to mount our root device while we're booting...
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if [ -d $ROOTFS_MNT/etc/udev/ ] ; then
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echo "$TARGET_DEVICE" >> $ROOTFS_MNT/etc/udev/mount.blacklist
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fi
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umount $ROOTFS_MNT
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umount $HDDIMG_ROOTFS_MNT
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echo "Preparing boot partition..."
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EFIDIR="$BOOTFS_MNT/EFI/BOOT"
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mkdir -p $EFIDIR
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GRUBCFG="$EFIDIR/grub.cfg"
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cp $HDDIMG_MNT/vmlinuz $BOOTFS_MNT
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# Copy the efi loader and config (booti*.efi and grub.cfg)
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cp $HDDIMG_MNT/EFI/BOOT/* $EFIDIR
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# Update grub config for the installed image
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# Delete the install entry
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sed -i "/menuentry 'install'/,/^}/d" $GRUBCFG
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# Delete the initrd lines
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sed -i "/initrd /d" $GRUBCFG
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# Delete any LABEL= strings
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sed -i "s/ LABEL=[^ ]*/ /" $GRUBCFG
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# Replace the ramdisk root with the install device and include other options
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sed -i "s@ root=[^ ]*@ root=$TARGET_ROOTFS rw $ROOTWAIT quiet@" $GRUBCFG
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# Provide a startup.nsh script for older firmware with non-standard boot
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# directories and paths.
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echo "bootia32.efi" > $BOOTFS_MNT/startup.nsh
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umount $BOOTFS_MNT
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umount $HDDIMG_MNT
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rm -rf $TMPDIR
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sync
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echo "Installation complete."
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