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mkmmc-linux.sh

#!/bin/bash

BOOT_DIR=boot
ROOTFS_DIR=rootfs

EXPECTED_ARGS=0

if [ $# == $EXPECTED_ARGS ]; then
	echo "mkmmc-linux Usage:"
	echo "	mkmmc-linux <device>"
	echo "	Example: mkmmc-linux /dev/sdb"
	exit
fi

check_files()
{
	if ! [[ -e $BOOT_DIR/MLO ]]; then
		echo "MLO doesn't in $BOOT_DIR"
		exit;
	fi

	if ! [[ -e $BOOT_DIR/u-boot.img ]]; then
		echo "u-boot.img doesn't in $BOOT_DIR"
		exit;
	fi

	if ! [[ -e $BOOT_DIR/myir_ricoboard.dtb ]]; then
		echo "myir_ricoboard.dtb doesn't in $BOOT_DIR"
		exit;
	fi

	if ! [[ -e $BOOT_DIR/zImage ]]; then
		echo "zImage doesn't in $BOOT_DIR"
		exit;
	fi

	if ! [[ -e $BOOT_DIR/uEnv.txt ]]; then
		echo "uEnv.txt doesn't in $BOOT_DIR"
	fi

	if ! [[ -e $ROOTFS_DIR/rootfs.tar.gz ]]; then
		echo "rootfs.tar.gz doesn't in $ROOTFS_DIR"
		exit;
	fi
}

check_files

echo "All data on "$1" now will be destroyed! Continue? [y/n]"
read ans
if ! [ $ans == 'y' ]
then
	exit
fi

echo "[Unmounting all existing partitions on the device ]"

umount $1*

echo "[Partitioning $1...]"

DRIVE=$1
dd if=/dev/zero of=$DRIVE bs=1024 count=1024 &>/dev/null

SIZE=`fdisk -l $DRIVE | grep Disk | awk '{print $5}'`

echo DISK SIZE - $SIZE bytes

CYLINDERS=`echo $SIZE/255/63/512 | bc`

#echo CYLINDERS - $CYLINDERS
#{
#echo ,9,0x0C,*
#echo ,,,-
#} | sfdisk -H 255 -S 63 -C $CYLINDERS $DRIVE

parted -s $DRIVE mklabel msdos
parted -s $DRIVE unit cyl mkpart primary fat32 -- 0 9
parted -s $DRIVE set 1 boot on
parted -s $DRIVE unit cyl mkpart primary ext2 -- 9 -2

if [ $? -ne 0 ]; then
  echo "error with $1" >&2
  exit $?
fi

echo "[Making filesystems...]"

if [[ ${DRIVE} == /dev/*mmcblk* ]]
then
	DRIVE=${DRIVE}p
fi

mkfs.vfat -F 32 -n "BOOT" ${DRIVE}1 &> /dev/null
mkfs.ext4 -F -L rootfs ${DRIVE}2 &> /dev/null

echo "[Copying files...]"

mount ${DRIVE}1 /mnt
cp $BOOT_DIR/MLO /mnt/MLO
cp $BOOT_DIR/u-boot.img /mnt/u-boot.img
cp $BOOT_DIR/myir_ricoboard.dtb /mnt/myir_ricoboard.dtb
cp $BOOT_DIR/zImage /mnt/zImage
cp $BOOT_DIR/uEnv.txt /mnt/uEnv.txt

umount ${DRIVE}1

mount ${DRIVE}2 /mnt
tar zxvf $ROOTFS_DIR/rootfs.tar.gz -C /mnt &> /dev/null
chmod 755 /mnt
umount ${DRIVE}2

echo "[Done]"