Subject: UPDATE: Symbios 8750SP / IBM DDRS U2W boot problems
To: None <>
From: Joerg Czeranski <>
List: port-alpha
Date: 05/17/1999 00:20:16
I wrote:
> I have an AlphaPC164 with a 4 GB IDE disk (NetBSD-1.3.3 on it),
> a Symbios 8750SP ultra narrow (i.e. 8bit) hostadapter, and an IBM DDRS U2W
> disk attached via a narrow/wide adapter.
> [...]
> Then it scans the bus, finds the DDRS, decides to switch it to wide
> and query its parameters.  That doesn't work with a narrow cable
> though. :)
> It starts writing endless error messages on the console (see below).
> After adding "options SCSI_NCR_MAX_WIDE=0" to the kernel config file,
> it detects and uses the DDRS without problems:
> [...]

Yesterday I booted the Digital Unix 4.0E OS CD and got these boot

pci0 at nexus 
itpsa0 at pci0 slot 7 
Checksum read error. 
 *** Attempt to run on unsupported adapter *** 
itpsa0 not probed 
 attempting to use psiop... 
psiop0 at pci0 slot 7 
siop_pci_initialize: Warning - Using unsupported 53c875 scsi chip 
Loading SIOP: script c0001b00, reg 82011000, data 4094fa98 
scsi0 at psiop0 slot 0 
rz0 at scsi0 target 0 lun 0 (LID=0) (IBM     DDRS-34560D      DC1B) (Wide16) 
rz4 at scsi0 target 4 lun 0 (LID=1) (TOSHIBA CD-ROM XM-3301TA 2411) 

Then it went on to Just Work - booting continued, I newfs'ed, mounted,
and used the disk.

What can I do to install NetBSD 1.4 on it?