On Mon, 2009-06-08 at 16:17 +0100, Chris Clayton wrote: > > Actually, you can save yourself a lot of pain by mounting by label > > instead ... that way both grub and fstab will find your root disc even > > if it has swapped order. > > > > Would I be right in assuming from this that "out-of-order" detection > is expected behaviour? If so, I'll fix up my system and shut up :-) I > suspect I may not be the only person on the planet who specifies the > root filesystem in this way, though. Yes and no ... yes generally because parallel asynchronous probing does relax the ordering rules, so if you have multiple devices the ordering can easily change. No in your particular case because you have a single ata_piix and even with async enabled it should probe PATA first (master and slave) followed by SATA. The fact that the PATA and SATA probes didn't synchronise is a bug somewhere, but I'm not sure where. Could you fix your system to do the label mounting and post the full boot log where it's out of sequence? I have a nasty feeling we might have got the ata probe order correct only to be thrown out of order by sd driver attachment. James -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html