Fedora 18 安装完MySQL 无法启动问题

Fedora 18 和之前版本的有一些区别 ，故而不能像以前的一样 。 使用 # yum install mysql-server mysql 安装成功后，启动mysql 服

fedora 18 和之前版本的有一些区别 ，故而不能像以前的一样 。

使用

# yum install mysql-server mysql

安装成功后，启动mysql 服务，使用

# systemctl start mysqld.service
可是 会有如下问题Job for mysqld.service failed. See 'systemctl status mysqld.service' and 'journalctl -xn' for details.

使用

# journalctl -xn ，提示
-- Logs begin at 四 2013-04-11 16:13:02 CST, end at 四 2013-04-11 22:07:06 CST. --
4月 11 22:05:47 localhost.localdomain dbus-daemon[654]: dbus[654]: [system] Rejected send message, 2 matched rules; type="method_return", sender=":1.0
4月 11 22:05:47 localhost.localdomain dbus[654]: [system] Rejected send message, 2 matched rules; type="method_return", sender=":1.0" (uid=0 pid=648 c
4月 11 22:06:13 localhost.localdomain dbus-daemon[654]: ** Message: No devices in use, exit
4月 11 22:07:03 localhost.localdomain systemd[1]: Starting MySQL database server...
-- Subject: Unit mysqld.service has begun with start-up
-- Defined-By: systemd
-- Support:
-- Documentation:
--
-- Unit mysqld.service has begun starting up.
4月 11 22:07:03 localhost.localdomain mysqld_safe[7422]: 130411 22:07:03 mysqld_safe Logging to '/var/log/mysqld.log'.
4月 11 22:07:04 localhost.localdomain mysqld_safe[7422]: 130411 22:07:04 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
4月 11 22:07:06 localhost.localdomain mysqld_safe[7422]: 130411 22:07:06 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
4月 11 22:07:06 localhost.localdomain systemd[1]: mysqld.service: control process exited, code=exited status=1
4月 11 22:07:06 localhost.localdomain systemd[1]: Failed to start MySQL database server.
-- Subject: Unit mysqld.service has failed
-- Defined-By: systemd
-- Support:
-- Documentation:
--
-- Unit mysqld.service has failed.
--
-- The result is failed.
4月 11 22:07:06 localhost.localdomain systemd[1]: Unit mysqld.service entered failed state

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查看 /var/log/mysqld.log  内容如下

[root@localhost log]# more mysqld.log
130413 13:45:12 mysqld_safe Starting mysqld daemon with databases from /var/lib/
mysql
130413 13:45:12 [Note] Plugin 'FEDERATED' is disabled.
/usr/libexec/mysqld: Can't find file: './mysql/plugin.frm' (errno: 13)
130413 13:45:12 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgr
ade to create it.
130413 13:45:12 InnoDB: The InnoDB memory heap is disabled
130413 13:45:12 InnoDB: Mutexes and rw_locks use GCC atomic builtins
130413 13:45:12 InnoDB: Compressed tables use zlib 1.2.7
130413 13:45:12 InnoDB: Using Linux native AIO
130413 13:45:12 InnoDB: Initializing buffer pool, size = 128.0M
130413 13:45:12 InnoDB: Completed initialization of buffer pool
130413 13:45:12 InnoDB: highest supported file format is Barracuda.
130413 13:45:12 InnoDB: Waiting for the background threads to start
130413 13:45:13 InnoDB: 5.5.30 started; log sequence number 1595675
130413 13:45:13 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306
130413 13:45:13 [Note] - '0.0.0.0' resolves to '0.0.0.0';
130413 13:45:13 [Note] Server socket created on IP: '0.0.0.0'.
130413 13:45:13 [ERROR] /usr/libexec/mysqld: Can't find file: './mysql/host.frm'
(errno: 13)
130413 13:45:13 [ERROR] Fatal error: Can't open and lock privilege tables: Can't
find file: './mysql/host.frm' (errno: 13)
130413 13:45:13 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ende
d
130413 13:48:32 mysqld_safe Starting mysqld daemon with databases from /var/lib/
mysql
130413 13:48:32 [Note] Plugin 'FEDERATED' is disabled.
/usr/libexec/mysqld: Can't find file: './mysql/plugin.frm' (errno: 13)
130413 13:48:32 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgr
ade to create it.
130413 13:48:32 InnoDB: The InnoDB memory heap is disabled
130413 13:48:32 InnoDB: Mutexes and rw_locks use GCC atomic builtins
130413 13:48:32 InnoDB: Compressed tables use zlib 1.2.7
130413 13:48:32 InnoDB: Using Linux native AIO
130413 13:48:32 InnoDB: Initializing buffer pool, size = 128.0M
130413 13:48:32 InnoDB: Completed initialization of buffer pool
130413 13:48:32 InnoDB: highest supported file format is Barracuda.
130413 13:48:32 InnoDB: Waiting for the background threads to start
130413 13:48:33 InnoDB: 5.5.30 started; log sequence number 1595675
130413 13:48:33 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306
130413 13:48:33 [Note] - '0.0.0.0' resolves to '0.0.0.0';
130413 13:48:33 [Note] Server socket created on IP: '0.0.0.0'.
130413 13:48:33 [ERROR] /usr/libexec/mysqld: Can't find file: './mysql/host.frm'
(errno: 13)
130413 13:48:33 [ERROR] Fatal error: Can't open and lock privilege tables: Can't
find file: './mysql/host.frm' (errno: 13)
130413 13:48:33 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ende
d

这个说明是权限问题，之后 执行

# cd /var/lib/mysql
# chown mysql.mysql -R *
# service mysqld start

这个时候，，mysql 就启动成功了 。。