[U-Boot-Users] kernel bootparams

[Wolfgang Denk]

In message <402AB73F.5010803 at email.si> you wrote:
> 
> I have a board, pxa based, and it has u-boot burnt, but i don't have the 
> source from which it was compiled from, so i don't have any config 
> setting (got the board as-is).

Then request the source from the guys who gave/sold  you  the  board.
U-Boot  is  under  GPL  and  they MUST give you the full source code,
including all modifications they might have made, _ffor_free_.

> for now booting is made from flash, loading both kernel and ramdisk. i 
> want to try nfs based booting and first strange thing i notice when 
> kernel gets booted is that kernel parameters are always the same, no 
> matter to what i set 'bootargs' var in u-boot. it always displays

Probably the kernel uses it's own bootstrap loader which  includes  a
hard-wired command line.

> I also tried changing CONFIG_CMDLINE setting in .config of the kernel to 
> same value as bootargs but still notihng changed.
> 
> If CONFIG_BOOTARGS var in u-boot is specified during compile time, does 
> it interfere with bootargs passed at boot time ?

No, this is just the default value which can be  overwritten  by  the
standard setenv command.

> i will copile u-boot from CVS tomorrow (need to create new board 
> defines), just need to clear some stuff now...

Complain at the guys who gave you the board!!

Best regards,

Wolfgang Denk

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