CentOS6.5上安装MySQL5.6及更改数据库目录

1 安装mysql数据库

参考: http://www.jb51.net/article/58096.htm

1) 查询已经安装的mysql:

# rpm -qa | grep -i mysql
mysql-libs-5.1.73-3.el6_5.x86_64 (系统自带,不删除)

2) 删除旧的:

//# rpm -e --nodeps mysql-libs-5.1.73-3.el6_5.x86_64

3) 下载安装包:

# wget ftp://pub:[email protected]/rpm/MySQL-server-5.6.27-1.el6.x86_64.rpm
# wget ftp://pub:[email protected]/rpm/MySQL-devel-5.6.27-1.el6.x86_64.rpm
# wget ftp://pub:[email protected]/rpm/MySQL-client-5.6.27-1.el6.x86_64.rpm

4) 安装mysql数据库

# rpm -ivh MySQL-server-5.6.27-1.el6.x86_64.rpm MySQL-client-5.6.27-1.el6.x86_64.rpm MySQL-devel-5.6.27-1.el6.x86_64.rpm
error: Failed dependencies:
        libnuma.so.1()(64bit) is needed by MySQL-server-5.6.27-1.el6.x86_64
        libnuma.so.1(libnuma_1.1)(64bit) is needed by MySQL-server-5.6.27-1.el6.x86_64
        libnuma.so.1(libnuma_1.2)(64bit) is needed by MySQL-server-5.6.27-1.el6.x86_64
# yum install numactl
# rpm -ivh MySQL-server-5.6.27-1.el6.x86_64.rpm MySQL-client-5.6.27-1.el6.x86_64.rpm MySQL-devel-5.6.27-1.el6.x86_64.rpm
# rpm -qa | grep -i mysql
MySQL-server-5.6.27-1.el6.x86_64
MySQL-client-5.6.27-1.el6.x86_64
MySQL-devel-5.6.27-1.el6.x86_64

# chkconfig mysql on

5) 查看使用的my.cnf

# mysql --help | grep my.cnf

6) 复制一个my.cnf

# cp /usr/share/doc/MySQL-server-5.6.27/my-default.cnf /etc/my.cnf

7) 启动mysql server
# service mysql start
# cat /root/.mysql_secret
# The random password set for the root user at Mon Apr 24 16:37:19 2017 (local time): 1VSt46KA3RHO1ZhJ

# mysql u root -p1VSt46KA3RHO1ZhJ

mysql> SET PASSWORD = PASSWORD('abc123');

2 更换mysql数据库的数据文件目录

默认在:
/var/lib/mysql

1) 查看datadir

# mysqladmin -u root -p variables|grep datadir
| datadir | /var/lib/mysql/

2) 更换到 /data/mysql

# mv /var/lib/mysql /data/
# cp /usr/share/mysql/my-default.cnf /etc/my.cnf

# vi /etc/my.cnf
[client]
port = 3306
socket = /data/mysql/mysql.sock (必须)

[mysqld]
port = 3306
datadir=/data/mysql
socket=/data/mysql/mysql.sock

# vi /etc/init.d/mysql
datadir=/data/mysql

启动mysql:
# service mysql start
or
# /etc/init.d/mysql start
查看数据库的目录:
# mysqladmin -u root -p variables|grep datadir

Enter password:
| datadir | /data/mysql/

结束!