[LinuxBIOS] V3 fallback, failover, and the normal boot flag.

Marc Jones marc.jones at amd.com
Wed Jul 18 17:45:11 CEST 2007

ron minnich wrote:
> On 7/17/07, Corey Osgood <corey.osgood at gmail.com> wrote:
>> Peter Stuge wrote:
>>> Also re CMOS checksum, I would like if LB could avoid clobbering the
>>> CMOS, for when switching back and forth with another BIOS.
>>> Writing LB CMOS bytes would be done after the final switch.
>>> //Peter
>> Agreed
>> -Corey
> So I guess the original logic is right.
> - CMOS csum bad? fallback boot
> - last boot normal not set? fallback boot
> but we still need the ability to clear one bit, so we can drop to
> fallback. That bit is the 'last boot normal' bit. We can't get away
> from clearing one bit. But we can avoid messing with cmos otherwise.
> ron
It seems that it is the behavior that most people want.


Marc Jones
Senior Software Engineer
(970) 226-9684 Office
mailto:Marc.Jones at amd.com

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