Re: [Qemu-devel] Re: Need a way disable gPXE boot

[Anthony Liguori]

On 03/09/2010 08:11 AM, Richard W.M. Jones wrote:
> Did anyone attempt this?
>
> I noticed also with libguestfs that boot times have spiralled out of
> control again, and it seems to be down to the SeaBIOS change.  SeaBIOS
> accounts for _9_ seconds of the boot sequence, up from very small
> (fraction of a second) for the old Bochs BIOS[1].
>
> rm -rf /usr/share/gpxe directory reduces the SeaBIOS share of the boot
> time down to about 5 seconds, but that's still a huge regression
> compared to the old Bochs BIOS.
>    

Sounds like you're using a distro and that the distro has improperly 
built the GPXE binaries.  We don't look for roms in /usr/share/gpxe in 
upstream...

For the ROMs we ship, we set BANNER_TIMEOUT=0.

You should file a bug against your distro and try to reproduce with an 
upstream build.  SeaBIOS takes no time at all with upstream.

Regards,

Anthony Liguori

> I'm sure it's waiting for a keypress or something stupid like that.
> It'd be nice if the BIOS could be configured in a "just boot, dammit"
> mode where it avoids all interaction with keyboards, network cards,
> option ROMs etc.
>
> Rich.
>
> [1] Once I'd put a patch into Bochs BIOS to disable a 3 second
> keypress wait.
>
>