jffs2_mount_mtdram.sh

#!/bin/bash

## Script to mount jffs2 filesystem using mtd kernel modules.
## EMAC, Inc. 2009

if [[ $# -lt 2 ]]
then
	echo "Usage: $0 FSNAME.JFFS2 MOUNTPOINT [ERASEBLOCK_SIZE]"
	exit 1
fi

if [ "$(whoami)" != "root" ]
then
	echo "$0 must be run as root!"
	exit 1
fi

if [[ ! -e $1 ]]
then
	echo "$1 does not exist"
	exit 1
fi

if [[ ! -d $2 ]]
then
	echo "$2 is not a valid mount point"
	exit 1
fi

if [[ "$3" == "" ]]
then
	esize="128"
else
	esize="$3"
fi

# cleanup if necessary
umount /dev/mtdblock0 &>/dev/null
modprobe -r mtdram &>/dev/null
modprobe -r mtdblock &>/dev/null

modprobe mtdram total_size=32768 erase_size=$esize || exit 1
modprobe mtdblock || exit 1
dd if="$1" of=/dev/mtdblock0 || exit 1
mount -t jffs2 /dev/mtdblock0 $2 || exit 1

echo "Successfully mounted $1 on $2"
exit 0