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。

sh>>
$ brew install mysql
Warning: It appears you have MacPorts or Fink installed.
Software installed with other package managers causes known problems for
Homebrew. If a formula fails to build, uninstall MacPorts/Fink and try again.
==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/mysql-5.6.1
######################################################################## 100.0%
==> Pouring mysql-5.6.15.mavericks.bottle.tar.gz
==> Caveats
A "/etc/my.cnf" from another install may interfere with a Homebrew-built
server starting up correctly.

To connect:
mysql -uroot

To have launchd start mysql at login:
ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents
Then to load mysql now:
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
Or, if you don't want/need launchctl, you can just run:
mysql.server start
==> /usr/local/Cellar/mysql/5.6.15/bin/mysql_install_db --verbose --user=akanuma
==> Summary
/usr/local/Cellar/mysql/5.6.15: 9410 files, 349M
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　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。

sh>>
$ ln -sfv /usr/local/opt/mysql/*.plist ~/Library/LaunchAgents
/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。

sh>>
$ launchctl load ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
$ ps aux | grep mysql
akanuma 2558 0.0 0.0 2423468 332 s000 R+ 10:54PM 0:00.00 grep mysql
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
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。

sh>>
$ mysql -uroot
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.6.15 Homebrew

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Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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