GACK!! I really need to read my own replies better before "Send".
Re-sending a snipped with corrections:
FTP cd1.iso to a Linux PC then on that PC do a
mount -r -o loop -t iso9660 cd1.iso /cdrom
Ensure that "/cdrom" is exported via NFS.
On the installation system, get a shell and then
mkdir /cdrom
chmod 555 /cdrom
mount -r pclinuxbox:/cdrom /cdrom
then [re]invoke the installer
and tell it to use this directory "/cdrom"
rather than perform its own NFS mounts or FTP transfers
Perform a minimal installation to get the zSeries/390 instance viable,
then mount other CDs using "loop back" on THAT side (no more need
for the PC).
