Extremely Off Topic -- but!

[Roger]

I've been using Linuxen, mainly Fedora, for many years so am familiar 
with Nix command line.
Recently I was provided a new Apple Macbook Pro to be used to develop 
specific apps for the App store.

Following a tutorial on computersnyou.com which seems most 
comprehensive,  installed mysql which worked fine then on Sunday night  
upgraded to the new Yosemite OS,  mysql died.

I downloaded the .dmg again and reinstalled following the above, hoping 
to correct it's config files but now mysql-5.6.20-osx10.8-x86_64 is very 
difficult to start.
/usr/local/mysql is in the PATH.
Error is: ERROR 2002 Can't connect to local MYSQL through socket 
'/tmp/mysql.sock' (2)
 From installation instructions  I did ln -s /tmp/mysql.sock 
/private/var/mysql/mysql.sock which is no help.
I removed the link and reinstated. Checked that mysql.sock exists.

/usr/local/mysql/support-files/mysql.server start  starts mysql but I 
cannot get it to start on boot.
I thought to completely remove mysql and it's dependencies then install 
from scratch but there seems to be no way that I can find to delete 
mysql file system. I miss yum. Fortunately I can use my old faithful 
Linux desktop, Ahh! Home safe.

I searched for local/Vic Apple User group similar to this LUV forum to 
ask, with no luck.
AUSOM seems to be a PC Usergroup with some Apple events.

Can someone please advise what's wrong and how to fix, hopefully without 
reinstalling. And if there is an apple forum similar to  LUV or 
Community for Fedora Users
Thanks in advance
Roger