Patrick Ale wrote:
On 2/11/07, Robert Hancock <[email protected]> wrote:
Patrick Ale wrote:
> Something unrelated to the tests I am doing.
>
> I found out that the libsata driver doesn't really cope or likes the
> idea that you might have a controller without a master drive
> configured.
>
> In this case on ATA2 I have a CDROM drive, connected as slave.
> ATA: abnormal status 0x7F on port 0x177
> ATA: abnormal status 0x7F on port 0x177
> ata2.01: ATAPI, max UDMA/66
> ata2.01: configured for UDMA/66
Having a single drive on the channel configured as slave is not really a
legal configuration. (I believe the ATA standards say that it's
something that a host controller/driver/OS is allowed to support, but it
is not required to.) A single drive should always be set to master (and
connected to the end of the cable and not the middle, by the way).
It is very legal when one of your harddisks blows out and you take it
out temporarely and have no money for a replacement IMO. But then
again, this is probably an abnormality.
Then in that case you should set the remaining drive as master. That's
just the way PATA is. A lot of BIOSes won't even detect a drive that's
set as slave with no master present.
But still, it even complains when no drive is attached to a controller
at all. Since when you buy an add-on PCI card you get 2 connectors
even when you want to add one harddisk how does one deal with that?
Yeah, that's a better point. It's not really complaining, but we could
probably have a better way of suppressing that message. I think it's
largely there so that we can debug issues with drives not being detected
when they should.
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from [email protected]
Home Page: http://www.roberthancock.com/
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