3B2 installpkg floppy --> TAPE (HOW?)

[David Mundhenk]

I am looking for some help in translating some software
packages on floppydisk for use with 'sysadm installpkg'
to 60MB SCSI Tape (qtape) for the 3B2/[4-7]00. I know I
can 'dd' the floppy contents into a file, then 'dd' them
back out to 'qtape', and without rewinding can fit quite
a few of them there. 

I need to be able to distribute several packages to AT&T 
sites, and don't want to give them a ton of floppies.

My questions are:

1. Is there a way to use 'sysadm installpkg' or a minor
   modification thereof to read in these "dd'd" packages
   from the qtape? 
2. I am familiar with the tape that comes
   with the 3B2/600 and 3B2/700 that has EVERYTHING on it -
   you can even BOOT from it. I have used 'dd' to read in 
   specific packages from these, and noticed several files/
   packages before the first one that is "advertised" as
   being there. Is the first one a special install script that
   "knows" what else is on the tape?  Is there a way to do this on
   the 3B2/400 with SCSI qtape?
3. Is there another way of getting these onto the tape in
   a way that can be re-installed easily?
   (Other than installing everything and doing a 'cpio' backup?).

Thanks for any help you might offer.

Dave Mundhenk
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