[coreboot] Coreboot on Tyan S2892

Anose, Bijoy K (N-Aerotek) bijoy.k.anose at lmco.com
Wed Nov 19 22:12:04 CET 2008

I enabled the busybox option and used the default value of "5 second
pause to allow access to busybox" but it doesn't
pause anywhere, as far as I can tell.  Coreboot starts, LAB starts, LAB
kexecs the kernel/initrd on the SATA disk, and
then at that busybox prompt, I get no output when I issue "fdisk -l
Could you send me a tarball of your buildrom-devel?  Something must be
different in our config.  Also your lab.conf and
the kernel/initrd that is on your SATA disk, if that would ok.  I built
my own static kexec and xfer'd it to the SATA drive.
Multiple drives shouldn't make any difference -- if the controller can
see one drive, it can see them all (if it is actually
working properly).  My system may have 2 drives or 8, depending on its
function.  The one I'm currently experimenting
with has only 2 installed.
(sorry again for top-posting, Outlook is acting differently over
VPN/rdesktop for some reason)


	From: Myles Watson [mailto:mylesgw at gmail.com] 
	Sent: Wednesday, November 19, 2008 11:19 AM
	To: Anose, Bijoy K (N-Aerotek)
	Cc: Ward Vandewege; Coreboot
	Subject: Re: [coreboot] Coreboot on Tyan S2892

	On Wed, Nov 19, 2008 at 9:40 AM, Anose, Bijoy K (N-Aerotek)
<bijoy.k.anose at lmco.com> wrote:

		> From: Ward Vandewege [mailto:ward at gnu.org]
		> Sent: Thursday, November 13, 2008 6:56 PM
		> To: Anose, Bijoy K (N-Aerotek)
		> Cc: Myles Watson; Marc Jones; Coreboot
		> Subject: Re: [coreboot] Coreboot on Tyan S2892
		> On Thu, Nov 13, 2008 at 07:04:49PM -0500, Anose, Bijoy
		> (N-Aerotek) wrote:
		> > > So far it's just me seeing that, on one specific
		> (s2891). So
		> > > don't worry about that too much just yet.
		> >
		> > True, I'll cross that bridge when I get there.
		> >
		> > First I'll need to be able to boot, period.  So far,
		> I've done is
		  > > this:
		> >
		> > 1.  Subversion checkout of latest buildrom 2.  make
		> > specifying Tyan S2892, 32-bit LAB 3.  make
		> >
		> > Do I need to do further configuration (Config.lb
etc)?  I
		> thought that
		> > the menuconfig took care of everything.  Maybe that
was wishful
		> > thinking..
		> It's not. The only other thing you need to do is
		> the vga image to the generated image, which will
generate an
		> image that is exactly 1024KB large, and which you can
		> and which *should* just boot your system.
		I finally got coreboot+LAB to boot my target
kernel/initrd on the SATA
		disks (many thanks to Ward)!
		However, once the init script in the initrd attempts to
assembly the
		RAID, it fails because it can't see the SATA disks.

	How many do you have?  Ward has seen a problem with some disk
controllers not functioning on the ck804.  I've never used more than

		My guess is that coreboot is originally doing some low
level block reads
		the disk to load the kernel/initrd but when the final
kernel attempts to
		do a
		SATA read from the disk, the controller has not been
		and it fails.

	Have you tried configure the busybox shell to not load
automatically, and looked at the SATA drives from there?

		I assume that whatever modifications that Myles made to
		boot from
		SATA devices with coreboot+LAB on S2892 have trickled
down to buildrom..

	I used buildrom.  I think the multiple drives may be getting
you, though. 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.coreboot.org/pipermail/coreboot/attachments/20081119/dd22cd46/attachment.html>

More information about the coreboot mailing list