Config Linux BIOS: Is it possible (Re: [OLPC-devel] DOS in Windows Flash Disaster Recovery Utility?

[James Cameron]

On Mon, Sep 04, 2006 at 02:22:00PM -0800, supat at supat.eu.org wrote:
> After I burn OLPC to Linux BIOS, seem it is always has error messages at 
> the beginning like:
> 
> ACPI ... DSCP not found ??

I don't get this message, and besides since ACPI is not planned to be
present I wouldn't be concerned if I did see such a message.  Does the
system boot anyway?  When during the boot process do you see this
message?  What are you booting?

Booting build 81 shows in dmesg "ACPI: Unable to locate RSDP", and
"ACPI: Interpreter disabled."  This is expected.

> I press F1 and it has only images.

This seems normal.  F1 enters the image menu, then you use left and
right arrow keys to select an image.  The last image, on my board, gives
a LinuxBIOS shell prompt.

> I am not sure that is feature or bug.

It seems to be a feature.

> Could you please verify me that :
> There is no way under linux BIOS to config the OLPC devices?

Perhaps the source code would show what it is capable of, or perhaps we
need to wait for documentation on what configuration options are
available.  Is there any reason you need to configure devices?  Why
shouldn't Linux be able to do this configuration?  We control the BIOS,
there seems no justification for device configuration functionality.

> If so, after I power-off, is thare any way to bring back the old BIOS.

Perhaps.  I've not tested it, and I'm not willing to.  You should be
able to boot from the same filesystem you did the olpcflash commands on.
But why would you need to do this at all?  Why do you need ACPI?

-- 
James Cameron    mailto:quozl at us.netrek.org     http://quozl.netrek.org/