1 files changed, 111 insertions, 0 deletions
diff --git a/target/linux/mvebu/image/gen_mvebu_sdcard_img.sh b/target/linux/mvebu/image/gen_mvebu_sdcard_img.sh
new file mode 100755
index 0000000000..8725a37861
--- /dev/null
+++ b/target/linux/mvebu/image/gen_mvebu_sdcard_img.sh
@@ -0,0 +1,111 @@
+#!/usr/bin/env bash
+#
+# Copyright (C) 2016 Josua Mayer
+# 
+# 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+
+usage() {
+	echo "$0 <sectors> <outfile> <bootloader> [<type_partitionN> <sectors_partitionN> <img_partitionN>]?"
+}
+
+# always require first 3 arguments
+# then in pairs up to 8 more for a total of up to 4 partitions
+if [ $# -lt 3 ] || [ $# -gt 15 ] || [ $(($#%3)) -ne 0 ]; then
+	usage
+	exit 1
+fi
+
+set -e
+
+# parameters
+IMGSIZE=$1
+OUTFILE="$2"
+BOOTLOADER="$3"
+
+# calculate number of partitions from argument list
+NUMPARTS=$#
+((NUMPARTS=(NUMPARTS-3)/3))
+
+# find required applications
+FDISK=$(env PATH="/usr/local/sbin:/usr/sbin:/sbin:$PATH" which fdisk)
+
+# generate image file
+printf "Creating $OUTFILE from /dev/zero: "
+dd if=/dev/zero of="$OUTFILE" bs=512 count=1 >/dev/null
+printf "Done\n"
+
+# generate fdisk argument list
+printf "Generating fdisk argument list: "
+ARGSFILE=$(mktemp)
+
+# empty partition table
+printf "o\n" >> $ARGSFILE
+
+# actual partitions
+offset=2048
+for i in $(seq 1 1 $NUMPARTS); do
+	((n=3+3*i-2)); type=$(eval echo \${$n})
+	((n=3+3*i-1)); size=$(eval echo \${$n})
+	((end=offset+size-1))
+
+	printf "n\np\n%i\n\n%i\n" $i $end >> $ARGSFILE
+
+	# special case on first aprtition: fdisk wont ask which one
+	if [ $i -eq 1 ]; then
+		printf "t\n%s\n" $type >> $ARGSFILE
+	else
+		printf "t\n%i\n%s\n" $i $type >> $ARGSFILE
+	fi
+
+	# add this partitions size to offset for next partition
+	((offset=end+1))
+done
+
+# write and exit
+printf "w\n" >> $ARGSFILE
+
+printf "Done\n"
+
+# create real partition table using fdisk
+printf "Creating partition table: "
+cat $ARGSFILE | $FDISK "$OUTFILE" >/dev/null
+printf "Done\n"
+
+# remove temporary files
+printf "Cleaning up: "
+rm -f $ARGSFILE
+printf "Done\n"
+
+# install bootloader
+printf "Writing bootloader: "
+dd of="$OUTFILE" if="$BOOTLOADER" bs=512 seek=1 conv=notrunc 2>/dev/null
+printf "Done\n"
+
+# write partition data
+
+# offset of first partition is 2048
+offset=2048
+for i in $(seq 1 1 $NUMPARTS); do
+	((n=3+3*i-1)); size=$(eval echo \${$n})
+	((n=3+3*i));   img="$(eval echo \${$n})"
+
+	printf "Writing %s to partition %i: " "$img" $i
+	dd if="$img" of="$OUTFILE" bs=512 seek=$offset conv=notrunc 2>/dev/null
+	printf "Done\n"
+
+	# add this partitions size to offset for next partition
+	((offset=offset+size))
+done