From owner-freebsd-stable  Sat Jul  6 11:54: 0 2002
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Date: Sat, 6 Jul 2002 19:53:50 +0100 (BST)
From: Andrew Gordon <arg-bsd@arg1.demon.co.uk>
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To: Randy Bush <randy@psg.com>
Cc: FreeBSD Stable <freebsd-stable@freebsd.org>
Subject: Re: umass becomes da0 over scbus
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On Sat, 6 Jul 2002, Randy Bush wrote:

> 4.6-stable as of yesterday

This has been happening for a long time

> i have an ahc with a single drive.  standalone it comes up find as
> da0s...  and boots right along.
> but, if i have a usb hard drive plugged in, the umass device takes
> over da0 and the scsi drive renumbers to da1 and then the
> post-device boot fails.
>
> i even tried hacking in
>
>     # SCSI peripherals
>     device          scbus0          # SCSI bus (required)
>     device          da              # Direct Access (disks)
>     device          da0 at scbus0 target 0 unit 0
>
> but get the same result.


You haven't wired quite the right thing - your problem isn't that da0 has
deviated from target0/unit0, it's that scbus0 isn't the bus you thought it
was.  I use:

device  scbus0 at sym0
device  da0 at scbus0 target 0 unit 0

You presumably need "ahc0" in place of "sym0".


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