MySQL and server settings when upgrading Mac Pro from 10.6 to 10.7

Question

I have my web development environment on a mac pro running on OS X version 10.6. I'm considering upgrading it to Mac OS X 10.7.

Will it upgrade smoothly or do I have to reinstall mysql, perl and so on? I am especially scared for upgrading MySQL and the databases.

To answer remarks here below, I don't remember how I installed MySQL in the first place, but for what I remember, it didn't came out of the box. That's why I am scared it might get removed.

Concerning the os version, I tend to say as close possible to the version that came with the mac at the time. The more recent the OS the more resource hungry they are. I prefer to have a fast mac then an up to date OS. I would stay to 10.6, but there are some applications could help me and are only running on 10.7.

Answer 1

MySQL, as well as the databases, is still there and working after upgrading. This said, all the settings, php, mysql, apache, virtual hosts, where resetted to the default. Very annoying I have to rebuild all my development environment.