VAX4000/300 MNS7.3 isntallation from CDROM

Sean Caron scaron at
Fri Aug 7 10:38:58 CDT 2015

Hi Holm,

If the CD-ROM is showing up as DKnXXX in "show dev", you just need the boot
parameters to be zeroed out or default or whatever ... nothing special is
required, just boot DKnXXX where that's the CD-ROM device and it should
come right up. I have found this to be the case on any VAX machine I've got.

When you boot the installation disk, eventually you will land at a DCL
prompt, the only useful command you can run there is BACKUP, to restore the
save set off the CD-ROM to your hard disk.

Once you've restored the save set from CD-ROM to the HDD, boot from the HDD
(again with default flags) to continue the installation process.



On Fri, Aug 7, 2015 at 11:26 AM, Holm Tiffe <holm at> wrote:

> Hi,
> I've got an VAX4000/300 eqipped with an TK70, 2x RF31, 1xRF71 disks,
> and an CQD-200/TM.
> I've connected an toshiba Xm5701 drive to the SCSI Bus and the machine sses
> it as DUA3. I have a VMS7.3 CDROM and want to install it on one of the
> disks.
> I've read some documents on HPs website but it isn't clear to me
> how to boot the cdrom correctly, there is root 1 mentioned.
> What bootflag must entered, B/R5:10000000?
> the case w/o the R5:10000000 I get a $ Promt finally (here I habe to
> read further). With the bootflag the System is complaining that dua3 is
> write protected (it is the cdrom)...
> What's the correct way to install VMS on that machine?
> Regards,
> Holm
> --
>       Technik Service u. Handel Tiffe,, Holm Tiffe,
>      Freiberger Straße 42, 09600 Oberschöna, USt-Id: DE253710583
>, info at, Fax +49 3731 74200, Mobil: 0172 8790 741

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