Hi,

I'm trying to boot linux from flash with cramfs from a specific mtd partition. Using fixed maps from /drivers/mtd/maps I had success but with command line arguments I didn't.

I always get the following message:

VFS: Cannot open root device "mtdblock4" or 1f:04 Please append a correct "root=" boot option Kernel panic: VFS: Unable to mount root fs on 1f:04

Does anybody know the right bootargs command line and/or root= parameter should I use?

BTW, I'm using ELDK 3.1 with kernel 2.4.25.

Thx, TT

Current u-boot configuration ----------------------------------------- mtdids=nor0=flash0 mtdparts=mtdparts=flash0:256k(u-boot),64k(u-boot-env),768k(fpga),960k(kernel),5632k(cramfs),128k(cfg0),128k(cfg1),256k(log) ipaddr=192.168.1.1 serverip=192.168.1.100 partition=nor0,4 mtddevnum=4 mtddevname=cramfs bootcmd=tftp; bootm bootargs=root=/dev/mtdblock4 ro rootfstype=cramfs ip=192.168.1.1:192.168.1.100::::eth0