私物のMacBook AirにMySQLをインストールしました。せっかくなので手順をメモしておきます。

　インストール自体はHomebrewでコマンド一発です。

   1  $ brew install mysql
   2  Warning: It appears you have MacPorts or Fink installed.
   3  Software installed with other package managers causes known problems for
   4  Homebrew. If a formula fails to build, uninstall MacPorts/Fink and try again.
   5  ==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/mysql-5.6.1
   6  ######################################################################## 100.0%
   7  ==> Pouring mysql-5.6.15.mavericks.bottle.tar.gz
   8  ==> Caveats
   9  A "/etc/my.cnf" from another install may interfere with a Homebrew-built
  10  server starting up correctly.
  11  
  12  To connect:
  13      mysql -uroot
  14  
  15  To have launchd start mysql at login:
  16      ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents
  17  Then to load mysql now:
  18      launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
  19  Or, if you don't want/need launchctl, you can just run:
  20      mysql.server start
  21  ==> /usr/local/Cellar/mysql/5.6.15/bin/mysql_install_db --verbose --user=akanuma
  22  ==> Summary
  23   /usr/local/Cellar/mysql/5.6.15: 9410 files, 349M

　インストール後の各手順については上記のインストール時の出力に示されています。
　まずOS起動時にMySQLが起動するように設定します。

   1  $ ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents
   2  /Users/akanuma/Library/LaunchAgents/homebrew.mxcl.mysql.plist -> /usr/local/opt/mysql/homebrew.mxcl.mysql.plist

　launchctlコマンドで起動します。

   1  $ launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist 
   2  $ ps aux | grep mysql
   3  akanuma          2558   0.0  0.0  2423468    332 s000  R+   10:54PM   0:00.00 grep mysql
   4  akanuma          2555   0.0  5.3  3081112 448512   ??  S    10:54PM   0:00.40 /usr/local/Cellar/mysql/5.6.15/bin/mysqld --basedir=/usr/local/Cellar/mysql/5.6.15 --datadir=/usr/local/var/mysql --plugin-dir=/usr/local/Cellar/mysql/5.6.15/lib/plugin --bind-address=127.0.0.1 --log-error=/usr/local/var/mysql/Hiroakis-MacBook-Air.local.err --pid-file=/usr/local/var/mysql/Hiroakis-MacBook-Air.local.pid
   5  akanuma          2467   0.0  0.0  2436436   1008   ??  S    10:54PM   0:00.02 /bin/sh /usr/local/opt/mysql/bin/mysqld_safe --bind-address=127.0.0.1

　mysqlコマンドで接続できることを確認します。

   1  $ mysql -uroot
   2  Welcome to the MySQL monitor.  Commands end with ; or \g.
   3  Your MySQL connection id is 1
   4  Server version: 5.6.15 Homebrew
   5  
   6  Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
   7  
   8  Oracle is a registered trademark of Oracle Corporation and/or its
   9  affiliates. Other names may be trademarks of their respective
  10  owners.
  11  
  12  Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.