boot issue.

[trimarchi at gandalf.sssup.it]

Hi,
do you have u-boot as bootloader? Just read using nand read mem_address offset
size
then using the cmd line to pass this information to the kernel using initrd

Regards
Michael


Quoting Peter Menzebach <pm-mtd at mw-itcon.de>:

> Hi,
>
> Lakshmi N. Sundararajan wrote:
>> 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.
> So you have *no* filesystem in the flash, but a compressed image. 
> This is not usable as a filesystem directly in this format. Afaik, 
> only the initrd code can use this...
>
>> 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)".
>>
> which is correct, since there is no fs there...
>
>> 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.
> which would save the RAM space. You can still put some directories 
> into RAM...
>
>> Would anyone know about this issue? Is there any thing I got to do?
>> Any pointers would be helpful.
> The only solution I know is (assuming parallel flash) to give the 
> compressed image as an initrd=<address>,<size> to the kernel.
>
>
> Best regards
> Peter
> -- 
> Peter Menzebach
> Menzebach und Wolff IT-Consulting GbR
> Phone +49 751 355 387 1
>
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>



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