On 04/03/2012 12:58 PM, Jon Elson wrote:
     You can
install simh on your Linux box, get VMS up and running in
 probably half an hour, complete with IP networking.  Mount your tape
 images via simh and extract your savesets with the software that they
 were written to be extracted by. :)
    
 I have great difficulty thinking it is that simple. 
 
  Well, I just timed it: Clean slate to running VMS system with a tape
image mounted on an emulated drive, under simh.  26 minutes.
  But suit yourself. ;)
     I don't
know your level of expertise with VMS or simh, so please don't
 take this the wrong way, but...if you want to do that and would like
 some help, I'd be happy to help you out.  I can put together a "canned"
 simh VMS installation for something like this in a very short time.
    
 I got simh to teach my kids some machine language programming on the
 PDP-11.
 (We had a class last Sunday.) 
 
  Nice!!  How old are they?  (if you don't mind my asking, I am just
curious)
  I appreciate the offer, but this would be a last
resort.  I know VMS
 darn well, I was
 system manager and general developer on two VAX systems, and then on Alpha
 systems for a number of years.  I ran a MicroVAX (KA-630) in my home from
 1986 to 2007 when the hard drive broke.  I upgraded it over the years,
 wrote
 my own driver for a 3rd party tape controller that never had a VMS driver,
 wrote a driver and built an interface for a Jupiter 7 graphics system,
 and interfaced
 a bunch of home energy monitoring stuff to it.  Also attached a VCB-02
 color
 graphics board set to it, which was never really supposed to work on a
 KA-630, but it did.  Just the console wouldn't work right through the
 VCB-02,
 so sometimes I had to hook up a serial terminal. 
  Sweet!!
  But, although I REALLY liked VMS 20+ years ago, I have
moved on, and
 am now pretty comfortable in Linux.  (Do miss the regularity of VMS, if you
 know how to specify the options of one command, then all similar commands
 will be the same.)  The purpose of this exercise is to recover archival
 programs
 before the tapes turn into dust. 
  Good plan.  I still love VMS, though, but I'm a UNIX guy through and
through.
  If all else fails, I suppose I could go that way, but
this vmsbackup
 program
 seems to try to work, it probably needs a little tweak.  It detects the
 80 byte
 header records and stops.  All the VMS Backup tapes I've checked so far
 have two 80 byte headers, this program seems to want one 256-byte header. 
  That doesn't sound too tough to deal with.  Good luck!
            -Dave
--
Dave McGuire, AK4HZ
New Kensington, PA