[LinuxBIOS] etherboot/filo + sata startup timing

[Ward Vandewege]

On Fri, May 12, 2006 at 12:11:43AM +0200, Stefan Reinauer wrote:
> * Ward Vandewege <ward at gnu.org> [060506 15:11]:
> > On Sat, May 06, 2006 at 02:39:13PM +0200, Stefan Reinauer wrote:
> > > * Ward Vandewege <ward at gnu.org> [060505 23:38]:
> > > > I've tried this; the boot log is attached (minicom-20060505.cap) with
> > > > DEBUG_PCI, DEBUG_IDE and DEBUG_LINUXBIOS enabled. Didn't help.
> > > > 
> > > > >  * if that doesnt help: try whether the disk is detected as hda instead
> > > > >    of hde. This might happen with the current code.
> > > > 
> > > > I've tried that too, the bootlog is also attached (minicom-20060505-2.cap).
> > > > Still no luck; though here it does seem to find the IDE controller. But not
> > > > the drive...
> > > 
> > > Aha! It shows a floating IDE bus... Does anyone have an idea what's
> > > wrong exactly if this shows up? It might just be an issue of waiting
> > > just a little bit longer..
> 
> Hm. can you set the timeout from 20ms to 200ms?

Do you mean this line

    timeout = currticks() + 20 * TICKS_PER_SEC / 1000;

in ide_bus_floating() in drivers/ide.c? 

> Does it work with the etherboot filo btw?

Yes; that's what I've been using. But it _only_ works if I guarantee at least
3 to 4 seconds of bootup delay; that's why I have the AUTOBOOT_DELAY set to
5. But that doesn't work for Filo 0.5 - maybe it tries to find the disks
before doing the AUTOBOOT_DELAY?

Ward.

-- 
Ward Vandewege <ward at fsf.org>
Free Software Foundation - Senior System Administrator