Marcelo Tosatti wrote:
Looking closer: It's actually still pcbios that is used by my
installation - shouldn't this be Seabios now?
My understanding is that Seabios should get more testing with qemu-kvm
(other than the cpu hotplug debate). Gleb/Avi would know for sure.
Now whether pcbios option rom supports gpxe properly i don't know, maybe
that is the root cause for the problem (yes, qemu-kvm loads gpxe and
attempts to boot from the network first, the above commit only removes
the annoying multi-second delay).
CC'ing people with some clue.
Yup, that's the problem. gPXE doesn't think PCBIOS is a PnP bios
because it isn't. Therefore it doesn't enable BEV and uses int19 instead.
This isn't a problem with older QEMUs because we only loaded the option
roms on demand. We now load them unconditionally. Of course, that
meant -boot cdn never really worked correctly.
The only easy solution is moving to SeaBIOS. I'm surprised qemu-kvm
hasn't already made the move to be honest.
--
Regards,
Anthony Liguori
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