-snip-
< 1) RHEL 3.x is not LSB 3.0 compatible, whereas RHEL 4.2+ and SLE 9.3+
are.
< Would this affect a significant portion of the current zLinux
installed population?

As others have said, no.

-snip-
< 2) For non-LSB3.0 environments, we would have instructions on how to
do a source RPM install or a source tarball "make/make install".
< Even though the build is simple, will this be a issue with some z
Linux customers?

It will be a problem for almost all of them.  I.e., those that didn't
recruit their midrange Linux folks to do the support on the mainframe.

< Based on feedback, we can really decide to ship the package formats
that users seem to want/need, but we would *really* like to keep the
binary packages to a small number.

You should ship binary RPM packages for SLES and RHEL, .deb packages for
Debian/390, and .tgz packages for Slack/390, should you choose to
support them.  Doing anything else is going to cause you enormous
amounts of support headaches, and hence a lot of added costs and
customer dissatisfaction.

< We would like to be able to use a single zLinux image to build binary
packages.

Not easy to do, even following Rick Troth's suggestions.  You'd be much
better off getting z/VM, if you don't already have it, and creating
multiple guests.
 
< It would be *ideal* for us to just ship source packages, but our
intuition is that no matter how simple the build process, some customers
will only want binaries (the opposite of my preference :-)

I would say that 99.999% of your potential customers will want only
binary packages.  They're not in the business of being developers,
they're converted systems programmers or system administrators.  If
they're smart (and most of them are) they won't have any unnecessary
packages installed on their systems, to keep patching to a minimum.
That means no development tools unless it's a development system, etc.
Most of the people that wind up supporting Linux/390 systems don't have
the background and skills to be at all comfortable building packages
from source.  Even those that do, don't want to spend the time to have
to do it.  If it doesn't install and start running (with whatever
required configuration is really necessary) they're going to hate it.


Mark Post 

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