MySQL server [Version 5.0.96] installation fails on Mac Mountain Lion
Solution 1:
On Mountain Lion you should be using the 64-bit DMG I had no problem installing MySQL on Mountain Lion.
Solution 2:
I would suggest you try Homebrew as your installation method instead. It's very well maintained across a lot of core packages for developers.
You start with this command:
ruby -e "$(curl -fsSkL raw.github.com/mxcl/homebrew/go)"
Follow the installation instructions, then:
brew install mysql
I've had two successful installs with no problems on Mountain Lion.