Gerrard Geldenhuis wrote:
> Hi
>
> The installer adds these lines to modprobe.conf when installing:
>
>
>
> An IBM 336:
>
> alias scsi_hostadapter mptbase
>
> alias scsi_hostadapter1 mptspi
>
> alias scsi_hostadapter2 ata_piix
>
>
>
> IBM334:
>
> alias scsi_hostadapter aic79xx
>
> alias scsi_hostadapter1 ips
>
> alias scsi_hostadapter2 ata_piix
>
>
>
> HP GL 360:
>
> alias scsi_hostadapter cciss
>
> alias scsi_hostadapter1 ata_piix
>
>
>
> What is the practical application of these aliases? I am deploying a
> custom modprobe.conf file and having 3 different architectures
> complicates things somewhat. I just need to know how much effort needs
> to go into preserving these aliases.

I've been wondering about these recently, but lacking SCSI I've not
attempted to figure it out.

It's the historical way to identify SCSI adaptors' drivers and goes back
to the beginnings of Linux modules[1]. I'm sure it still works, but
whether it's the only or best way, I wonder.

>
>
>
> It might only be for convenience sake or it might be used by certain
> software. Doing quick tests removing the entries completely have not
> shown and adverse effects. However I did not test thoroughly at all.

The kernel uses it (or did) to identify, in order, your SCSI adaptors'
drivers.

I expect that, without it, the SCSI adaptors will work if their driver
is loaded. How they might be ordered is indeterminate (unless you know
better) and might not be consistent.


[1] I'd not be surprised if it predates Linux modules, it might still
have provided a means of ordering adaptors.


For a more definite answer, ask google and/or the LKML.




--

Cheers
John

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