On Sat, 30 Oct 1999 00:54:27 +0800,
> What I really meant by PDP-11 backup command is that by
>using PDP-11's RSX-11 OS backup command.
Quote:> I did check with Digital's ( now
>Compaq) Engineers regarding the the issue. The feedback that i got is that I
>need a VAX machine to read it.UNIX won't be able to read it directly. Anybody
>else out there can confirm this, so that I can find some other alternatives.
Well, I don't know enough about the RSX-11 backup command to
make a definitive statement, but I am extremely dubious that
their statement is strictly correct. As long as the box has a
tape drive which is physically able to read the tape (and which
the OS has a driver for), it should only be a matter of having
a piece software which understands the RSX-11 backup format to
recover it. However, it is true that it is extremely unlikely
that you will find a unix system which ships with software
that understands RSX-11 backup format, and I am unaware (not
that I am likely to be aware) of any such software out on the
'net, so you would probably have to write your own.
So, from the point of view of "with off the shelf tools"
they are probably right, but from the point of view of "it is
fundamentally impossible" they are probably wrong. In this
vein, I will re-iterate one, possibly useless, piece of advice:
Quote:>> In any event, you can get the data (contaminated with extraneous
>> backup-structure data) with a simple "dd" command, unless the
>> backup command does compression or encryption.