1 files changed, 117 insertions, 0 deletions
diff --git a/scripts/create_img_vexpress-a9.sh b/scripts/create_img_vexpress-a9.sh
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+++ b/scripts/create_img_vexpress-a9.sh
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+#!/bin/bash
+
+# This script generates SD card disk images suitable for use with QEMU.
+#
+# Copyright (C) 2011 Ash Charles
+# Based on:
+#   Narcissus - Online image builder for the angstrom distribution
+#   Copyright (C) 2008 - 2011 Koen Kooi
+#   Copyright (C) 2010        Denys Dmytriyenko
+# and
+#   Linaro Images Tools.
+#   Author: Guilherme Salgado <guilherme.salgado@linaro.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# 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.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+LC_ALL=C
+set -e
+
+function usage()
+{
+    echo "This utility generates SD card images suitable for use with QEMU."
+    echo "Usage:"
+    echo "  $0 <output name> <mlo> <u-boot> <kernel> <rootfs>"
+    echo "Example:"
+    echo "  $0 sd.img ~/MLO ~/u-boot.bin ~/uImage ~/rootfs.tar.bz2"
+}
+
+function check_args()
+{
+    if [ $# -ne 4 ]; then
+        usage
+        exit 1
+    fi
+    OUTFILE=$1
+    KERNEL=$2
+    ROOTFS=$3
+    QEMU_IMG=$4
+
+    if ! [[ -e ${KERNEL} ]]; then
+        echo "Kernel not found at ${KERNEL}! Quitting..."
+        exit 1
+    fi
+    if ! [[ -e ${ROOTFS} ]]; then
+        echo "Rootfs not found at ${ROOTFS}! Quitting..."
+        exit 1
+    fi
+    if ! [[ -e ${QEMU_IMG} ]]; then
+        echo "Qemu-img not found at ${QEMU_IMG}! Quitting..."
+        exit 1
+    fi
+}
+
+SIZE=1073741824 # 1G by default
+
+function make_image()
+{
+    $QEMU_IMG create -f raw ${OUTFILE} ${SIZE}
+
+    CYLINDERS=`echo ${SIZE}/255/63/512 | bc`
+    {
+    echo ,9,0x0C,*
+    echo ,,,-
+    } | sfdisk -D -H 255 -S 63 -C ${CYLINDERS} ${OUTFILE} &> /dev/null
+
+    # Reverse-engineer the partition setup
+    BYTES_PER_SECTOR="$(/sbin/fdisk -l -u ${OUTFILE} | grep Units | awk '{print $9}')"
+    VFAT_SECTOR_OFFSET="$(/sbin/fdisk -l -u ${OUTFILE} | grep FAT32 | awk '{print $3}')"
+    EXT3_SECTOR_OFFSET="$(/sbin/fdisk -l -u ${OUTFILE} | grep Linux | awk '{print $2}')"
+}
+
+
+
+function populate_image() 
+{
+    LOOP_DEV="/dev/loop1"
+    LOOP_DEV_FS="/dev/loop2"
+
+    echo "[ Format vfat partition ]"
+    sudo /sbin/losetup -v -o $(expr ${BYTES_PER_SECTOR} "*" ${VFAT_SECTOR_OFFSET}) ${LOOP_DEV} ${OUTFILE}
+    sudo mkfs.vfat -F 32 -n "boot" ${LOOP_DEV} > /dev/null
+
+    echo "[ Format ext3 partition ]"
+    sudo /sbin/losetup -v -o $(expr ${BYTES_PER_SECTOR} "*" ${EXT3_SECTOR_OFFSET}) ${LOOP_DEV_FS} ${OUTFILE}
+    sudo /sbin/mkfs.ext3 -L rootfs ${LOOP_DEV_FS} > /dev/null
+
+    echo "[ Copying files to vfat ]"
+    sudo mount ${LOOP_DEV} /mnt
+    sudo cp -v ${KERNEL} /mnt/uImage
+    sudo sync
+    sudo umount ${LOOP_DEV}
+
+    echo "[ Copying file system ]"
+    sudo mount ${LOOP_DEV_FS} /mnt
+    sudo tar xaf ${ROOTFS} -C /mnt
+    sudo sync
+    sudo umount ${LOOP_DEV_FS}
+
+    echo "[ Clean up ]"
+    sudo /sbin/losetup -d ${LOOP_DEV}
+    sudo /sbin/losetup -d ${LOOP_DEV_FS}
+}
+
+ARGS=$*
+check_args $ARGS
+make_image
+populate_image