CentOS系统安装mysql5数据库两种方法

简单点说，就是yum安装软件容易点，会自动解决各个包的依赖关系。rpm就一个软件包。

CentOS下以RPM方式安装MySQL5.5

首先去http://dev.mysql.com/downloads/mysql/5.5.html#downloads站点下载：

分别下载以下三个文件（由于我的机器是32位，下面是32位版本的包，如果你的机器是64位的请下载64位版本）：

MySQL-server-5.5.16-1.rhel5.i386.rpm

MySQL-client-5.5.16-1.rhel4.i386.rpm

MySQL-devel-5.5.16-1.rhel4.i386.rpm

使用wget命令使用断点传输的方式将这三个文件下载

wget -c http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-server-5.5.16-1.rhel4.i386.rpm/from/http://mysql.spd.co.il/

wget -c http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-client-5.5.16-1.rhel4.i386.rpm/from/http://mysql.spd.co.il/

wget -c http://dev.mysql.com/get/Downloads/MySQL-5.5/MySQL-devel-5.5.16-1.rhel4.i386.rpm/from/http://mysql.spd.co.il/

下载完成后开始安装：

rpm -ivh MySQL-server-5.5.16-1.rhel4.i386.rpm MySQL-client-5.5.16-1.rhel4.i386.rpm MySQL-devel-5.5.16-1.rhel4.i386.rpm

提示安装完成后，输入mysql 看是否安装成功

mysql

如果出现如下错误信息：(www.111com.net)

ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)

说明mysql服务还没有启动，输入service mysql start启动mysql服务

service mysql start

然后再输入mysql，若出现以下提示信息，说明成功。

Welcome to the MySQL monitor.  Commands end with ; or g.
Your MySQL connection id is 1
Server version: 5.5.16 MySQL Community Server (GPL)

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
owners.

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

首次安装时，默认密码为空，可以使用如下命令修改root密码，

mysqladmin -u root  password mypassword

mypassword 为你设定的新密码

然后再次登录

mysql -u root –p

rpm包安装的MySQL是不会安装/etc/my.cnf文件的，解决方法，只需要复制/usr/share/mysql目录下的my-huge.cnf 文件到/etc目录，并改名为my.cnf即可

cp /usr/share/mysql/my-huge.cnf /etc/my.cnf

配置远程访问

处于安全考虑，Mysql默认是不允许远程访问的，可以使用下面开启远程访问

//赋予任何主机访问数据的权限：(www.111com.net)
mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'WITH GRANT OPTION

//使修改生效
mysql>FLUSH PRIVILEGES

如果依然不能远程访问的话，那就很可能防火墙的原因了，可以在防火墙中开启3306端口或者干脆关掉防火墙。

 CentOS 6.3源码安装mysql 5.6方法

1：下载mysql

下载地址为：http://www.mysql.com/downloads/mysql/5.6.html#downloads

选择"Source Code"->"
Generic Linux (Architecture Independent), Compressed TAR Archive"

2：安装必要的软件包

yum -y install gcc gcc-c++ gcc-g77 autoconf automake zlib* fiex* libxml* ncurses-devel libmcrypt* libtool-ltdl-devel* make cmake

3:编译安装

[root@server100 ~]# groupadd mysql

[root@server100 ~]# useradd -r -g mysql mysql

[root@server100 ~]# tar -zxvf mysql-5.6.10.tar.gz

[root@server100 ~]# cd mysql-5.6.10

[root@server100 mysql-5.6.10]# cmake .

[root@server100 mysql-5.6.10]# make && make install

-------------默认安装目录为/usr/local/mysql

[root@server100 ~]# chown -R mysql.mysql /usr/local/mysql

[root@server100 ~]# cd /usr/local/mysql/scripts

[root@server100 ~]# ./mysql_install_db --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

[root@server100 ~]# cd /usr/local/mysql/support-files

[root@server100 support-files]# cp mysql.server /etc/rc.d/init.d/mysql

[root@server100 support-files]# cp my-default.cnf /etc/my.cnf

[root@server100 ~]# chkconfig --add mysql

[root@server100 ~]# chkconfig mysql on

[root@server100 ~]# service mysql start

Starting MySQL SUCCESS!

[root@server100 support-files]# mysql

Welcome to the MySQL monitor. Commands end with ; or g.

Your MySQL connection id is 1

Server version: 5.6.10 Source distribution

Copyright (c) 2000, 2013, 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

owners.

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

mysql>

mysql> status;

--------------

mysql Ver 14.14 Distrib 5.6.10, for Linux (i686) using EditLine wrapper

Connection id: 1

Current database:

Current user: root@localhost

SSL: Not in use

Current pager: stdout

Using outfile: ''

Using delimiter: ;

Server version: 5.6.10 Source distribution

Protocol version: 10

Connection: Localhost via UNIX socket

Server characterset: utf8

Db characterset: utf8

Client characterset: utf8

Conn. characterset: utf8

UNIX socket: /tmp/mysql.sock

Uptime: 5 min 45 sec

Threads: 1 Questions: 5 Slow queries: 0 Opens: 70 Flush tables: 1 Open tables: 63 Queries per second avg: 0.014

--------------

mysql>

至此mysql安装完毕。