Rahul Sundaram wrote:
On Mon, 2008-11-10 at 12:52 -0600, Callum Lerwick wrote:
Debian can do this. The only reason we can not is because we refuse
to.
And so far we refuse to be cause we allow free-form scriptlets in rpms.
It would be interesting to see how one would upgrade say mysql major
version and then roll it back all via packaging. Something that
requires changing the on disk format of your databases and such.
And the answer to that is that sometimes interactive choices need to
be made during installation/upgrade/downgrade operations. Or they
can't be done with a package at all.
They can't be done then since RPM doesn't support interactive
installations. It is designed to be completely automatic. If you have to
ask questions in the middle of a transaction, you lose anyway.
So the RPM design forces you to not use it at all. Great. But, that
brings back the concept of migration. Is there any interest in that, so
your upgrade becomes a non-destructive copy that you can test before the
old copy is gone? Disk space is cheap these days.
--
Les Mikesell
lesmikesell@xxxxxxxxx
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