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At some point hitherto, Bill Freeman hath spake thusly:
>       I added an Adaptec AHA1542 and a Jaz drive to it (to have
> enough room for a local iso image).  Kudzu (or whatever checks "for
> new hardware") didn't notice, nor did the hardware browser.
[SNIP]
> modules.conf, but while I can now modprobe scsi_hostadapter to get the
> driver loaded, it doesn't get automaticly picked up via kmod if I just
> try to mount the Jaz disk.
> 
>       Groveling around in the HOWTOs mentions that kerneld/kmod
> won't manage to load things up if you have two host adapters.  I guess
> that's what's happening here between ide-scsi and aha1542.  ide-scsi
> seems to have been loaded at boot time, so when mount goes looking
> for /dev/sda4, it looks for it on that controller, rather than loading
> scsi_hostadapter.  The same HOWTO gives an ugly solution involving
> hand editing your moduels.dep, and forgoing depmod -a at boot time.

If memory serves, the AHA 1542 SCSI card is an ISA PnP card.  I think
at least part of the problem is the way the kernel deals with PnP
support...  In order for it to load the modue for this card, you
probably need to configure it properly using the isapnptools.  I may
be mistaken here, as I've never had to deal with this type of
problem...  I've always used whatever ISA cards I've had in jumpered
mode.

If the howto recommends the above solution, then there's probably a
good reason for it.  However, whenever dealing with a problem like
this, and specifically dealing with I/O drivers related to hard
drives, my solution has always been to recompile my kernel so that it
contains the module in question compiled in, rather than compiled as a
module.  If you do this, your AHA 1542 will always be detected at boot
time, and you won't have to insmod anything.  IMO, this is the "right"
way to handle it.  I'll add though that the "right" way is whatever
works best for you...  As with most things, there's more than one way
to do it.

- -- 
Derek Martin               [EMAIL PROTECTED]    
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