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#! /bin/sh
# mkcard.sh v0.5
# (c) Copyright 2009 Graeme Gregory <dp@xora.org.uk>
# Licensed under terms of GPLv2
#
# Parts of the procudure base on the work of Denys Dmytriyenko
# http://wiki.omap.com/index.php/MMC_Boot_Format
export LC_ALL=C
if [ $# -ne 1 ]; then
echo "Usage: $0 <drive>"
exit 1;
fi
DRIVE=$1
dd if=/dev/zero of=$DRIVE bs=1024 count=1024
SIZE=`fdisk -l $DRIVE | grep Disk | grep bytes | awk '{print $5}'`
echo DISK SIZE - $SIZE bytes
CYLINDERS=`echo $SIZE/255/63/512 | bc`
echo CYLINDERS - $CYLINDERS
{
echo ,9,0x0C,*
echo ,,,-
} | sfdisk -D -H 255 -S 63 -C $CYLINDERS $DRIVE
sleep 1
if [ -x `which kpartx` ]; then
kpartx -a ${DRIVE}
fi
# handle various device names.
# note something like fdisk -l /dev/loop0 | egrep -E '^/dev' | cut -d' ' -f1
# won't work due to https://bugzilla.redhat.com/show_bug.cgi?id=649572
PARTITION1=${DRIVE}1
if [ ! -b ${PARTITION1} ]; then
PARTITION1=${DRIVE}p1
fi
DRIVE_NAME=`basename $DRIVE`
DEV_DIR=`dirname $DRIVE`
if [ ! -b ${PARTITION1} ]; then
PARTITION1=$DEV_DIR/mapper/${DRIVE_NAME}p1
fi
PARTITION2=${DRIVE}2
if [ ! -b ${PARTITION2} ]; then
PARTITION2=${DRIVE}p2
fi
if [ ! -b ${PARTITION2} ]; then
PARTITION2=$DEV_DIR/mapper/${DRIVE_NAME}p2
fi
# now make partitions.
if [ -b ${PARTITION1} ]; then
umount ${PARTITION1}
mkfs.vfat -F 32 -n "boot" ${PARTITION1}
else
echo "Cant find boot partition in /dev"
fi
if [ -b ${PARITION2} ]; then
umount ${PARTITION2}
mke2fs -j -L "Angstrom" ${PARTITION2}
else
echo "Cant find rootfs partition in /dev"
fi
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