18 Nov
2010
18 Nov
'10
7:39 a.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Geoffrey Reed
Sent: 18 November 2010 06:50
To: cctalk
Subject: Re: Installing Ultrix 4.4 on a DECstation 5000 Model 240
On 11/17/10 3:30 PM, "rachael at telefisk.org" <rachael at telefisk.org>
wrote:
blocks.
On Wed, 17 Nov 2010, Charles Dickman wrote:
> 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 512 byte blocksize. However I could be incorrect, it
has been a LONG time
since I've looked at a panasonic SCSI cd-rom drive.
Indeed the drive was already jumpered that way, I removed the jumper for
sector size and I could not even boot off the CD as a result. So the CD-ROM
is jumpered correctly.
Thanks
Rob