[Info-vax] LDDriver, Tools to create ISO

[John H. Reinhardt]

On Mar 19, 4:20 am, JF Mezei <jfmezei.spam... at vaxination.ca> wrote:
> John H. Reinhardt wrote:
> > Mounting /foreign is the way to go.  No BACKUP saveset (physical or
> > otherwise) is going to usable as disk image due to the CRC and other
> > error checking information stored.
>
> Doesn't BACKUP/PHYSICAL have the ability to do devive to device copy
> without a saveset in the middle ?  if you backup the CD to an LDAx:
> device, shouldn't it do a proper block by block copy ?

Yep. You had it right in your example.  All that was missing was the
MOUNT /FOREIGN for LDA1:   If you don't have that then BACKUP
complains:

%LD-I-CONNECTED, Connected _$101$LDA5: to DSA4:[LDD]
RX2600_FIRMWARE.IMG;1
$ backup /physical dqa0: lda5:
%BACKUP-F-PARSE, error opening LDA5:[LDD].;
-RMS-E-DNR, device not ready, not mounted, or unavailable
$ mount /for lda5
%MOUNT-I-MOUNTED,  mounted on _$101$LDA5: (BLISH)
$ backup /physical dqa0: lda5:
%BACKUP-W-PHYDEVLG, device LDA5: larger than input
%BACKUP-E-VBNMISSING, LDA5: has missing blocks 268780 through 292967

The warning and error are what you get if the target does not exactly
match the source for size (in this case the target is larger than the
source).  Doing an INITIALIZE /ERASE of the target before the BACKUP/
PHYSICAL would be prudent.

It seems to me in the deep, dark recesses of my mind that BACKUP used
to automatically mount foreign a target device if it was not already
mounted.  But I could be hallucinating.