[Info-vax] Disk image viewable in Windows/Linux

[Hans Vlems]

On 11 aug, 16:05, Paul Sture <paul.nos... at sture.ch> wrote:
> In article
> <5cedb60d-add7-4ebb-8eac-1400baf39... at v3g2000vbx.googlegroups.com>,
>  Hans Vlems <hvl... at freenet.de> wrote:
>
>
>
>
>
> > On Aug 6, 2:03 pm, Paul Sture <paul.nos... at sture.ch> wrote:
> > > In article <j1iuf0$n4... at speranza.aioe.org>,
> > >  Wilm Boerhout <wboerhout-rem... at this-gmail.com> wrote:
>
> > > > Neither PersonalAlpha nor CHARON-AXP nor CHARON-VAX nor SIMH add
> > > > metadada to disk containers. These containers are interchangeable with
> > > > LD-created containers. It's just a load of bytes.
>
> > > > So you can create a container with LD, $INIT it and fill it with data,
> > > > then dismount and disconnect the container, ftp /binary it to the
> > > > outside world, where all mentioned products (and probably a few others)
> > > > will happily see it as a disk container file.
>
> > > I think we've found the cause of the confusion.  The OP seems to think
> > > that these products create something akin to the container files used by
> > > VMware, Virtual PC, VirtualBox et al.
>
> > > The VAX and Alpha emulators just allocate a bunch of blocks and present
> > > them to VMS to do with as it wishes.
>
> > > Provided that the original VMS disk is a model recognized by the
> > > emulator you are using, I see no reason why you could not put it on a
> > > *nix system and use "dd" to create a file containing a physical copy,
> > > and use that in an emulator.
>
> > > @Sum1:
>
> > > I would recommend that after creating your LD container you perform an
> > > INIT/ERASE to ensure that the container is pre-filled with zeroes, and
> > > doesn't just pick up a load of garbage.
>
> > > --
> > > Paul Sture
>
> > Correct. Out of curiosity I tried this. Made a dd transfer of a VAX/
> > VMS V7.3 disk on a
> > Tru64 system. Copied it to VMS and mounted it with LD: worked. That
> > same file was
> > also burned on a CD and the CD was bootable (for a VAX of course).
> > Burning a physical backup image resulted in a CD that couldn't be read
> > though.
>
> When you say "a physical backup image" do you mean a backup saveset
> generated by BACKUP /PHYSICAL ?
>
> --
> Paul Sture- Tekst uit oorspronkelijk bericht niet weergeven -
>
> - Tekst uit oorspronkelijk bericht weergeven -

Paul, apologies for the english but yes, that's what I meant.