Hello Manuel!

  MB> Is the ZIP detected at boot ? What partition are you
    > trying to mount ?

It's detected as sd0, and I eventually figured out that I
could mount a FAT formatted Zip disk as sd0h.  This enabled
me to install the man pages on a machine that is not set up
to access the LAN (I haven't figured that out yet ;-)  When
I have some blank disks, I may try using a different file-
system.

Thanks for your interest,
  - Andy.