boot issue.

[Lakshmi N. Sundararajan]

Hello Team:
This may or may not be only related to MTD, but chances are someone
would be knowing
solutions for my case.

I have a compressed ext2 filesystem on a FLASH partition which I would
like
to use as a root file system mounted in RAM. The FLASH is accessed via
MTD layer.

The kernel parameters are "console=ttyS0,115200  noinitrd mem=128M
root=/dev/mtdblock5"
But kernel panics saying "VFS: Cannot mount root unknown device (31,5)".

If I were to use cramfs on FLASH and use the same kernel command line,
I am able to bringup the system.I am using 2.6 linux.

Would anyone know about this issue? Is there any thing I got to do?
Any pointers would be helpful.

Thanks,
-LN