From: Rik Wasmus
Date: August 3 2012 10:25am
Subject: Re: manage mysql-bin.xxxxxx files on mac
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> (1) What server fail to start, it always says that missing  mysql.sock

I seem to remember some distro's switching over from mysql.sock  so 
mysqld.sock... is that mysqld.sock there after restart? If so, just update 
your "socket" configuration accordingly / make it consistent.
-- 
Rik Wasmus