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Date: Wed, 16 Mar 2005 15:56:21 +1100
From: Aras Vaichas <arasv@magellan-technology.com>
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Subject: Re: Can not mount root on mtd block
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mike wrote:
> Dear all
>    I am using kernel 2.6.10 with patched cvs mtd and my flash mapping 
> driver. I also add debug msg on mount_block_root. The return value is 
> ENXIO. I am really get mess , because the cfi proded the flash 
> successfully, but final result is "no such a device". Does anyone have 
> ideas on this?
... SNIP ...
> *VFS: Tried fs_name = <cramfs> err = -6*
> VFS: Cannot open root device "mtdblock2" or unknown-block(0,0)
> Please append a correct "root=" boot option
> Kernel panic - not syncing: VFS: Unable to mount root fs on 
> unknown-block(0,0)


What is your kernel cmdline? The error says that it doesn't understand your 
"root=" option.


regards,

Aras Vaichas