我通过brew安装了mysql，看起来安装正常。Mysql 不会让我设置 root 密码，即使我很棘手。看起来好像表格完全丢失了。详细输出如下。
jb:~ jb$ brew install mysql
==> Downloading http://mysql.mirrors.pair.com/Downloads/MySQL-5.1/mysql-5.1.55.tar.gz
######################################################################## 100.0%
==> Downloading patches
==> Patching
patching file scripts/mysqld_safe.sh
Hunk #1 succeeded at 384 (offset 1 line).
patching file scripts/mysql_config.sh
==> ./configure --without-docs --without-debug --disable-dependency-tracking --prefix=/usr/local/Cellar/mysql/5.1.55 --l
==> make install
==> Caveats
Set up databases with:
unset TMPDIR
mysql_install_db
If this is your first install, automatically load on login with:
mkdir -p ~/Library/LaunchAgents
cp /usr/local/Cellar/mysql/5.1.55/com.mysql.mysqld.plist ~/Library/LaunchAgents/
launchctl load -w ~/Library/LaunchAgents/com.mysql.mysqld.plist
If this is an upgrade and you already have the com.mysql.mysqld.plist loaded:
launchctl unload -w ~/Library/LaunchAgents/com.mysql.mysqld.plist
cp /usr/local/Cellar/mysql/5.1.55/com.mysql.mysqld.plist ~/Library/LaunchAgents/
launchctl load -w ~/Library/LaunchAgents/com.mysql.mysqld.plist
Note on upgrading:
We overwrite any existing com.mysql.mysqld.plist in ~/Library/LaunchAgents
if we are upgrading because previous versions of this brew created the
plist with a version specific program argument.
Or start manually with:
mysql.server start
==> Summary
/usr/local/Cellar/mysql/5.1.55: 220 files, 42M, built in 17.6 minutes
jb:~ jb$ echo $TMPDIR
/var/folders/uL/uLRuoWTeFi86v2TkZkknLU+++TI/-Tmp-/
jb:~ jb$ unset TMPDIR
jb:~ jb$ echo $TMPDIR
jb:~ jb$ mysql_install_db
Installing MySQL system tables...
OK
Filling help tables...
OK
To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system
PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:
/usr/local/Cellar/mysql/5.1.55/bin/mysqladmin -u root password 'new-password'
/usr/local/Cellar/mysql/5.1.55/bin/mysqladmin -u root -h jb.local password 'new-password'
Alternatively you can run:
/usr/local/Cellar/mysql/5.1.55/bin/mysql_secure_installation
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/5.1.55 ; /usr/local/Cellar/mysql/5.1.55/bin/mysqld_safe &
You can test the MySQL daemon with mysql-test-run.pl
cd /usr/local/Cellar/mysql/5.1.55/mysql-test ; perl mysql-test-run.pl
Please report any problems with the /usr/local/Cellar/mysql/5.1.55/bin/mysqlbug script!
jb:~ jb$ cp /usr/local/Cellar/mysql/5.1.55/com.mysql.mysqld.plist ~/Library/LaunchAgents/
jb:~ jb$ launchctl load -w ~/Library/LaunchAgents/com.mysql.mysqld.plist
jb:~ jb$ /usr/local/Cellar/mysql/5.1.55/bin/mysql_secure_installation
NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL
SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!
In order to log into MySQL to secure it, we'll need the current
password for the root user. If you've just installed MySQL, and
you haven't set the root password yet, the password will be blank,
so you should just press enter here.
Enter current password for root (enter for none):
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
疯狂接踵而至……
我确定我拥有 usr/local：
jb:~ jb$ sudo chown -R `whoami` /usr/local
jb:~ jb$ which mysql
/usr/local/bin/mysql
我什至尝试使用“跳过授权表”启动 mysql 并设置密码：
jb:~ jb$ launchctl unload -w ~/Library/LaunchAgents/com.mysql.mysqld.plist
jb:~ jb$ killall mysqld
No matching processes belonging to you were found
jb:~ jb$ mysqld_safe --skip-grant-tables
110314 15:09:01 mysqld_safe Logging to '/usr/local/var/mysql/jb.local.err'.
110314 15:09:01 mysqld_safe Starting mysqld daemon with databases from /usr/local/var/mysql
然后在另一个终端窗口中：
jb:~ jb$ mysql -u root
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 1
Server version: 5.1.55 Source distribution
Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
This software comes with ABSOLUTELY NO WARRANTY. This is free software,
and you are welcome to modify and redistribute it under the GPL v2 license
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> UPDATE mysql.user SET Password=PASSWORD('pretend_strong_password_here') WHERE User='root'; FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.02 sec)
Rows matched: 0 Changed: 0 Warnings: 0
Query OK, 0 rows affected (0.03 sec)
mysql>
什么鬼，这不应该影响一行吗？就像桌子没有制作一样？我应该跑mysql_install_db吗sudo？
PS：我可能通过忽略 brew 公式在下载 mysql-5.1.54 时失败并将其编辑为 dl 5.1.55 而导致了这一切。但是，除此之外，你能看出我在这里做错了什么吗？
编辑： http ://forums.mysql.com/read.php?10,277700,280261#msg-280261 和 http://palmeradev.blogspot.com/2010/12/fix-bug-mysql-root-user-未创建的.html
指示几个 mysql 查询以在 mysql.user 表上创建 root 用户。这些查询对我不起作用，我收到错误消息。
mysql> INSERT INTO user VALUES ('localhost','root',password('newpassword'),'Y','Y ','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y', 'Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','Y','' ,'','','',0,0,0,0);
ERROR 1136 (21S01): Column count doesn't match value count at row 1