Installing Ultrix 4.4 on a DECstation 5000 Model 240

[Rob Jarratt]

It is something that crossed my mind and I have not checked. I think this
will have to be my next line of investigation.

Thanks

Rob

> -----Original Message-----
> From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
> On Behalf Of Charles Dickman
> Sent: 17 November 2010 23:15
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: Installing Ultrix 4.4 on a DECstation 5000 Model 240
> 
> On Wed, Nov 17, 2010 at 2:51 PM, Rob Jarratt <robert.jarratt at ntlworld.com>
> wrote:
> >       It is failing at the stage of detecting the disks with an
> > "invalid block size" error.
> >
> > I am using a CR-506 CD-ROM drive and the disks I have are RZ56 and RZ57.
> 
> Could this be an issue with the CD-ROM not supporting 512byte blocks?
> I know that microVAXen need this to install VMS, perhaps this is true with
Ultrix
> also.
> 
> With some drives you have to set a jumper to force it to 512byte blocks.
> 
> -chuck