Linux: Mounting JFFS2 on an MTD RAM Device

$ modprobe jffs2

$ modprobe mtdblock

$ modprobe mtdram

$ dd if=jffs2.bin of=/dev/mtdblock0

$ mount -t jffs2 /dev/mtdblock0 /mnt/flash

And now to save changes we do:

$ dd if=/dev/mtdblock0 of=new-jffs2.bin.