Upgrading postgresql-8.0 to 8.1

["David Gaudine" <davidg@alcor.concordia.ca>]

I use postgresql 8.0, but since this is "local/obsolete" in Etch I want to
upgrade to 8.1.  I've already done this on a backup system, but I got a
few warnings so I want to make sure I'm doing it right before I do it on
my main system.

Here's what I did that seemed to work but gave some of warnings;
- Install postgresql-8.1 and packages that it depends on
- Stop the 8.1 server (I don't remember if I stopped the 8.0 server)
- pg_dropcluster 8.1 main
- pg_upgradecluster 8.1 main
- start the 8.1 server

Is there a better way?

David