mySql server won't start after upgradge to mac osx 10.6 Snow Leopard

After upgrading to Snow Leopard the mySQL server would not start. I found the solution here:

http://www.macintouch.com/readerreports/snowleopard/topic4883.html. You have to search down the page to find the solution, search for Ralph Martin or mySql.

The upgrade to Snow Leopard seems to have broke the symbolic link.

Ralph Martin

I too found that MySQL wouldn't start after upgrading to Snow Leopard.

The answer seems straightforward. Previously there was a symbolic link from
/usr/local/mysql
to
/usr/local/mysql-5.1.37-osx10.5-x86_64
and this seems to have been deleted by the upgrade process.

I got MySQL working again by doing

cd /usr/local
sudo ln -s mysql-5.1.37-osx10.5-x86_64 mysql

(note that you may have to modify this slightly if your MySQL is a different version).