Subject: Re: Floppy booting NETBSD 1.4 on VS3100
To: Brian D Chase <>
From: Michael Kukat <>
List: port-vax
Date: 06/17/1999 23:44:30
Hi !

> The SCSI device support in general on the VS3100's is not satisfactory. On
> my old and slow RZ22, RZ23, and RZ24 drives I can get a disklabel to take,
> but it's impossible to get a newfs of any of the partitions to succeed.  
> Other people have had success with newer, better performing SCSI drives.

I got it running... (better say WALKING... no DMA, but it works !)
You just have to patch a bit in vsa/ncr.c:

About line 199, after the line

ncr_sc->sci_r7 = sc->sca_regs + 28;

insert the line:

ncr_sc->sc_no_disconnect = 0xff;

This disables disconnection as i know, with this, you can "newfs sd0a"
even on a VS 3100m76

so long.. Michael