redhat7.1 64bit上rpm安装mysql 5.6

因为redhat7.1自带了mariadb的lib，所以需要先卸载：
# yum remove mariadb-libs-5.5.41-2.el7_0.x86_64

安装mysql的相关rpm：
# rpm -ivh MySQL-server-5.6.23-1.el7.x86_64.rpm
# rpm -ivh MySQL-devel-5.6.23-1.el7.x86_64.rpm
# rpm -ivh MySQL-client-5.6.23-1.el7.x86_64.rpm

初始化mysql db：
# /usr/bin/mysql_install_db

为root设置密码：
# systemctl start mysql
#  cat /root/.mysql_secret
# The random password set for the root user at Tue Jan 12 14:05:43 2016 (local time): D8lpRCzbcp1VszRE

[root@localhost bin]# mysql -uroot -pD8lpRCzbcp1VszRE
……
mysql> SET PASSWORD=PASSWORD('123456');
Query OK, 0 rows affected (0.00 sec)

mysql> exit
Bye

修改mysql db的charset为utf-8
编辑/usr/my.cnf文件，在文件末尾添加一下内容：
collation_server = utf8_general_ci
character_set_server = utf8

重启mysql：
# systemctl restart mysql