Date: Wed, 15 Nov 1995 08:01:34 -0800 (PST) From: Donald Burr <d_burr@ix.netcom.com> To: Michael Ryan <mike@networx.ie> Cc: FreeBSD Support <questions@freebsd.org> Subject: Re: AHA-1542 boot problem Message-ID: <Pine.BSF.3.91.951115075845.23044B-200000@ncc-1701-d> In-Reply-To: <ECS9511151217A@networx.ie>
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On Wed, 15 Nov 1995, Michael Ryan wrote:
> I have an Adaptec 1542 SCSI adapter with an external
> 1GB disk and external quad-speed CD-ROM. I also
> have a WD1007V internal disk. I wanted to install
> FreeBSD on the SCSI disk only. The problem I ran into
> was if I enabled the SCSI BIOS, then FreeBSD couldn't
> talk to the adapter (see messages below). Without the
> BIOS enabled, I can't use the SCSI disk as a boot disk.
> The interim solution I've chosen is to install the root
> partition on the WD1007V and everything else on the
> SCSI disk. While this works fine, it means I can't install
> the SCSI components in another PC and boot FreeBSD
> because I don't have a root partition.
> [...]
> The error messages I got from FreeBSD when the BIOS
> was enabled are as follows:
>
> aha0: reading board settings, dma=5 int=11 (bus speed defaulted)
> aha0: aha_cmd, cmd/data port full
> aha0 at 0x330-0x333 irq 11 drq 5 on isa
> aha0 waiting for scsi devices to settle
> probe0(aha0:0:0): timed out
> adapter not taking commands... frozen?
> Debugger ("aha1542") called
> /* The last three messages are repeated here */
> aha0: MBO not free
>
> The 1542 is of recent production (chips labelled 1995). It
> has what I'd call a SCSI-2 connector for the external
> devices. The CD-ROM is a SCSI-2 device. I'm not sure
> about the disk.
Aha, there's the problem. Looks like you have an Adaptec 1542CP, their
new Plug-and-Play flavor of the 1542. The 1542* series (including older
C, CF's, and the new CP) have a few configuration variables that need to
be played with in order to get things to work right, plus the Plug and
Play stuff builtin to the 1542CP throw a monkey wrench into the works as
well.
You must've missed my recent posting to the net and the lists, detailing
how I solved this problem, and got everything working happily. Well, for
your benefit, here it is again.
Let me know if you have any problems or whatnot.
Donald Burr [d_burr@ix.netcom.com], PO Box 91212, Santa Barbara CA 93190-1212
TEL (805)564-1871 // FAX 564-2315 // WWW http://www.physics.ucsb.edu/~dburr
PGP Public Key available by request (send e-mail) or Public Key Servers.
** Uphold your right to privacy - Use PGP. **
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