I'm working on an install of 1.5.1 on a 5305 with a Symbios dual port
NCR53c875.  There are 5 devices on channel A and none of B.
Termination is set at the controller (BTW, this is the 'intraserver'
card that also has an ethernet interface!).

Booting starts as normal.  The NCRs are probed and the disks on Channel
A show up, however when the Channel B is probed it comes back with
'probe(scsibus2:0:0): command timeout'

I double checked termination and even placed a terminator on
the controller's internal interface for channel B.  same result.

When booting ARC you can frob the sym-bios and actually turn off the
secondary / channel B .. however, SRM ignores this.

I've done some searching and reading of FAQs before posting to the
mailing list.  Unfortunately I didn't find any info.  if there is
something I'm over looking, let me know :)

smj