[aclug-L] Driver load order, two scsi adapters

["Greg House" <ghouse@xxxxxxxxxxxxx>]

I have an interesting question (at least, interesting to me...)

At work I have a system with two SCSI host adapters in it. One is a Symbios
8751S running a local disk, which is my boot device, and a Qlogic ISP2100
attached to a disk array.

My problem is that when I compile in the qlogicfc driver for that host
adapter, it loads it before the sym driver for the 8751, so it configures
the logical units on the array before the boot disk. That messes up the
mounting of the root device, which was sda before and ends up being like sdg
or whatever (depends on how many logical units I create).

Now, I talked to someone else who recommended compiling the sym driver into
the kernel & the qlogic driver as a module, turning off kernel auto loading
of modules and manually loading the module (with insmod) after the other
driver has configured the boot disk. I did that in one of the rc.d scripts
and it works fine.

This doesn't seem like a very elegant solution to me. Is there a better way
to select the sequence drivers are loaded?

Thanks,
Greg