blkmtd
On 26th June 2001, spse@secret.org.uk
released the blkmtd driver to the world. This driver allows you
to use any block device as an MTD storage device. The big advantage
with doing this is that you can run the JFFS2 filesystem on a block
device, and get compression and journalling where you couldn't normally
do so.
An iPAQ binary version of the blkmtd driver is availaible here.
blkmtd.tgz
You load the blkmtd driver in the following way
insmod blkmtd-arm.o device=/dev/hda
You will then get a new mtdblock device created in /dev/mtdblock/
(if you're using devfs). If you are not using devfs, then you must
create the device node manually. If you're using regular familiar
0.4, then the device that you get will be /dev/mtdblock/4 (or /dev/mtdblock4)
You can now mount a jffs2 filesystem from the new block device
mount -t jffs2 /dev/mtdblock/4 /mnt/test
Hey presto, you have your jffs2 CF card mounted on your iPAQ.
OK.. so you want to make a filesystem then.
fsutils.tgz
einfo will tell you
the number of erase blocks in easch region. add them up then do
erase /dev/mtd/xx 0 <number>
erase /dev/mtd/4 0 <no of eraseblocks>
Then do a mkfs.jffs2 -d<root dir> -o<output device>
-e<erase sz in bytes>
