Re: Sata controller order
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On 01/29/08 12:09, Stuart Gall wrote:
> Hello,
> I have a problem with 4.0r2 (although it is probably not exclusive to
> that release)
>
> On a number of systems with multiple sata controllers the controllers
> come up in different orders (randomly on boot) the order is always the
> same in lilo but gets changed sometimes by the time the kernel loads.
> This has the effect of juggling the drives so mount does not work.
>
> I have seen this problem in a number of places on the net, the usual
> solution posted is to mount by label rather than by drive.
>
> This is possible for EXT2/EXT3 but it is not possile AFAIKS for swap.
Swap partitions *can* have labels. You can also mount by UUID.
> Also the reason these systems have multiple sata controllers is that
> they have a raid partition. So also I am not sure how the md device
> would handle having its disks moved around.
>
> Is there some way to force a particular controller, and hence disk,
> ordering on the kernel ?
>
> For the moment, if these systems have to be shutdown. On reboot if the
> order is wrong we get dumped to ramfs then we just ctrl-alt-delete
> repeatedly until the order comes right and the system boots.
>
> I can not understand why the order would be random.
>
> I am using irqpoll kernel flag to boot these systems, otherwise we get
> sda lost interrupt, not sure if that is relevant.
>
> TVMIA
- --
Ron Johnson, Jr.
Jefferson LA USA
"I'm not a vegetarian because I love animals, I'm a vegetarian
because I hate vegetables!"
unknown
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