Re: [coreboot] ### coreboot, geode lx

[Steve Spano]

Hi Joe

Thanks for the reply.

The compact flash card does show up as a regular disk; under the
commercial BIOS.

I'll get a new card tomorrow and wipe it clean and reinstall, see if
that gets it going.

So basically, if FILO is in coreboot - it will look at the MBR and
decide on what filesystem it should attempt to mount?

Anyone know of an LPC flash emulator so its easier to develop the BIOS
code - rather than plugging/unplugging flash chips all the time?

Thanks

Steve Spano, President
Finger Lakes Engineering

-----Original Message-----
From: [e-mail]
[mailto:[e-mail]] On Behalf Of
[e-mail]
Sent: Tuesday, February 26, 2008 9:29 PM
To: [e-mail]
Subject: Re: [coreboot] ### coreboot, geode lx

Quoting Steve Spano :
> Hello folks,
>
> We have developed - basically a clone of the DB800 Amd Geode LX800
> reference system.
>
> We have an LX800, CS5536, SST04 LPC Flash (512KB) and a compact flash
> card - 1GB.
>
> The system is booting Ubuntu 6.10 using a commercial BIOS.
>
> I have downloaded the corebios and wish to get it running on our

board.
> I have been able to download it, configured with FILO and its almost
> working.
>
> What I want it to do is boot into the GRUB sector of the compact flash
> card and then allow grub to let me select what linux kernel/etc to

boot.
> When corebios loads FILO, filo says "mounting FAT" and it cannot find
> our grub sectors/etc on the compact flash card. Shouldn't this be EXT2
> that it mounts.

Can you confirm this is was partitioned as ext2?
> I have adjusted the configs for FILO to attempt to remove FAT, but it
> still keeps coming up. Seems like I a missing something pretty simple.

Maybe the MBR on your CF card has a fat partition entry on it?
you can try wiping the mbr with dd:
dd if=/dev/zero of=/dev/hda bs=512 count=1
But be warned dd can be dangerous so be careful.
> Can anyone point me to a reference on how to configure the latest
> corebios/FILO package to boot into an IDE compact flash (the compact
> flash card is right on the IDE bus of the CS5536).

Doesn't it just show up as a drive?
> Also - doesn't have to be FILO. I saw etherboot can boot to IDE as

well.
> I just want a BIOS so I can alter the memory timings/etc and jump to

my
> compact flash card for booting. So whatever is easiest.

Etherboot works too, but only upto version 5.2.6

Hope that helps.

Thanks - Joe