Yesterday I update one of my Lenny box to Squeeze. What follow is nothing new but only my personal experience ;)

This is what I did:

edit the source list


I choose to maintain my configuration file for mysql. This choice can generate problems during the upgrade process, because an option in the my.cnf file with the new version of mysql give problems.

My suggestion is to comment the line skip-bdb before the upgrade.





After that I clean a bit (I found forgotten package from etch :P)



For the following 2 commands use a bit of brain

purge the packages that were removed, but not purged


purge obsolete packages ( == packages not in any repos so also a package compiled by had)

I used this command to retrieve the list then I removed only the package not installed by hand (some time happen).
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good commands, I didn't know those, nice.
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