How to mount JFFS2 image

Use memory to emulate the MTD device
mknod /tmp/mtdblock0 b 31 0
modprobe mtdblock
modprobe mtdram total_size=65536 erase_size=256

modprobe jffs2

dd if=image.jffs2 of=/tmp/mtdblock0

mkdir /mnt/jffs2
mount -t jffs2 /tmp/mtdblock0 /mnt/jffs2