$ brew install mysql
==> Downloading http://downloads.mysql.com/archives/mysql-5.5/mysql-5.5.20.tar.gz
Already downloaded: /Users/futabooo/Library/Caches/Homebrew/mysql-5.5.20.tar.gz
==> Patching
patching file scripts/mysqld_safe.sh
patching file scripts/mysql_config.sh
==> cmake . -DCMAKE_INSTALL_PREFIX=/usr/local/Cellar/mysql/5.5.20 -DMYSQL_DATADIR=/usr/local/var/mys
==> make
==> make install
==> Caveats
Set up databases to run AS YOUR USER ACCOUNT with:
    unset TMPDIR
    mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp

To set up base tables in another folder, or use a different user to run
mysqld, view the help for mysqld_install_db:
    mysql_install_db --help

and view the MySQL documentation:
  * http://dev.mysql.com/doc/refman/5.5/en/mysql-install-db.html
  * http://dev.mysql.com/doc/refman/5.5/en/default-privileges.html

To run as, for instance, user "mysql", you may need to `sudo`:
    sudo mysql_install_db ...options...

Start mysqld manually with:
    mysql.server start

    Note: if this fails, you probably forgot to run the first two steps up above

A "/etc/my.cnf" from another install may interfere with a Homebrew-built
server starting up correctly.

To connect:
    mysql -uroot

To launch on startup:
* if this is your first install:
    mkdir -p ~/Library/LaunchAgents
    cp /usr/local/Cellar/mysql/5.5.20/homebrew.mxcl.mysql.plist ~/Library/LaunchAgents/
    launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist

* if this is an upgrade and you already have the homebrew.mxcl.mysql.plist loaded:
    launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
    cp /usr/local/Cellar/mysql/5.5.20/homebrew.mxcl.mysql.plist ~/Library/LaunchAgents/
    launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist

You may also need to edit the plist to use the correct "UserName".

Warning: m4 macros were installed to "share/aclocal".
Homebrew does not append "/usr/local/share/aclocal"
to "/usr/share/aclocal/dirlist". If an autoconf script you use
requires these m4 macros, you'll need to add this path manually.
==> Summary
/usr/local/Cellar/mysql/5.5.20: 6336 files, 221M, built in 4.0 minutes
$ brew list
cairo		gettext		mysql		pkg-config	readline
cmake		git		pango		potrace		sqlite
fontforge	glib		pidof		python		wget
gdbm		libffi		pixman		python3
$ unset TMPDIR
$ mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp
Installing MySQL system tables...
Filling help tables...

To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system

To do so, start the server, then issue the following commands:

/usr/local/Cellar/mysql/5.5.20/bin/mysqladmin -u root password 'new-password'
/usr/local/Cellar/mysql/5.5.20/bin/mysqladmin -u root -h futabooosmba password 'new-password'

Alternatively you can run:

which will also give you the option of removing the test
databases and anonymous user created by default.  This is
strongly recommended for production servers.

See the manual for more instructions.

You can start the MySQL daemon with:
cd /usr/local/Cellar/mysql/5.5.20 ; /usr/local/Cellar/mysql/5.5.20/bin/mysqld_safe &

You can test the MySQL daemon with mysql-test-run.pl
cd /usr/local/Cellar/mysql/5.5.20/mysql-test ; perl mysql-test-run.pl

Please report any problems with the /usr/local/Cellar/mysql/5.5.20/scripts/mysqlbug script!

$ mysql.server start
Starting MySQL
$ mysql -u root
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.5.20 Source distribution

Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.

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

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

mysql> show variables like 'character_set%';
| Variable_name            | Value                                                |
| character_set_client     | utf8                                                 |
| character_set_connection | utf8                                                 |
| character_set_database   | utf8                                                 |
| character_set_filesystem | binary                                               |
| character_set_results    | utf8                                                 |
| character_set_server     | utf8                                                 |
| character_set_system     | utf8                                                 |
| character_sets_dir       | /usr/local/Cellar/mysql/5.5.20/share/mysql/charsets/ |
8 rows in set (0.00 sec)