如何在Linux下安装Mysql

首先 下载下面三个文件(我的资源里面都可以下载的到):
 
  
 
卸载掉原来的mysql
[root@xiaoluo ~]# rpm -qa | grep mysql  // 这个命令就会查看该操作系统上是否已经安装了mysql数据库

有的话,我们通过  rpm -e --nodeps 命令来卸载掉
 
  
[plain] 
 
  
MySQL-client-5.6.13-1.el6.x86_64.rpm  
 
  
MySQL-devel-5.6.13-1.el6.x86_64.rpm  
 
  
MySQL-server-5.6.13-1.el6.x86_64.rpm  
 
  
然后使用root账号登陆,进行安装:
 
  
1. 安装server、devel、client:1. 安装server、devel、client:
 
  
 
 
  
rpm -ivh --replacefiles MySQL-s*.rpm 
 
  
rpm -ivh --replacefiles MySQL-d*.rpm
 
  
 
 
  
rpm -ivh --replacefiles MySQL-c*.rpm
 
  
 
 
  
 
 
  
[root@localhost download]# rpm -ivh --replacefiles MySQL-server-5.6.13-1.el6.x86_64.rpm   
 
  
Preparing...                ########################################### [100%]  
 
  
   1:MySQL-server           ########################################### [100%]  
 
  
[root@localhost download]# rpm -ivh --replacefiles MySQL-client-5.6.13-1.el6.x86_64.rpm   
 
  
Preparing...                ########################################### [100%]  
 
  
   1:MySQL-client           ########################################### [100%]  
 
  
[root@localhost download]# rpm -ivh --replacefiles MySQL-devel-5.6.13-1.el6.x86_64.rpm   
 
  
Preparing...                ########################################### [100%]  
 
  
   1:MySQL-devel            ########################################### [100%]
 
  
要移除安装可以使用 rpm -e MySQL-server  、 rpm -e MySQL-devel、MySQL-client即可;
 
  
2. 初始化 数据库: 
 
  
 
 
  
/usr/bin/ mysql_install_db 
 
  
 
 
  
3. 启动mysql服务:
 
  
 
 
  
service mysql start
 
  
 
 
  
使用命令ps -ef | grep mysql 查看mysql进程:
 
  
 
 
  
 
 
  
[root@localhost ~]# ps -ef | grep mysql  
 
  
root     26047     1  0 18:14 pts/12   00:00:00 /bin/sh /usr/bin/mysqld_safe --datadir=/var/lib/mysql --pid-file=/var/lib/mysql/localhost.localdomain.pid  
 
  
mysql    26227 26047  0 18:14 pts/12   00:00:01 /usr/sbin/mysqld --basedir=/usr --datadir=/var/lib/mysql --plugin-dir=/usr/lib64/mysql/plugin --user=mysql --log-error=/var/log/mysqld.log --pid-file=/var/lib/mysql/localhost.localdomain.pid --socket=/var/lib/mysql/mysql.sock  
 
  
root     26545 24726  0 18:27 pts/8    00:00:00 grep mysql
 
  
4.第一次登陆设置root密码:
 
  
首先查看 cat /root/.mysql_secret
 
  
 
 
  
 
 
  
root@localhost ~]# cat /root/.mysql_secret   
 
  
# The random password set for the root user at Fri Aug 30 15:57:18 2013 (local time): fMYcarvB
 
  
然后命令行:mysql -u root -p ,然后输入上面的密码即可:
 
  
 
 
  
[root@localhost ~]# mysql -u root -p  
 
  
Enter password:   
 
  
Welcome to the MySQL monitor.  Commands end with ; or \g.  
 
  
Your MySQL connection id is 5  
 
  
Server version: 5.6.13 MySQL Community Server (GPL)  
 
  
  
 
  
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.
 
  
设置root密码: 
 
  
 
 
  
mysql> use mysql  
 
  
Database changed  
 
  
mysql> update user set password=password('root') where user='root';  
 
  
Query OK, 0 rows affected (0.15 sec)  
 
  
Rows matched: 5  Changed: 0  Warnings: 0  
 
  
  
 
  
mysql> flush privileges;  
 
  
Query OK, 0 rows affected (0.00 sec)
 
  
退出,重新登陆即可使用新的密码登陆;
 
  
5. 设置远程登陆:
 
  
 
 
  
使用root登陆到mysql后
 
  
 
 
  
 
 
  
mysql> update user set host='%' where user='root';  
 
  
ERROR 1062 (23000): Duplicate entry '%-root' for key 'PRIMARY'  
 
  
mysql> select host,user from user;  
 
  
+-----------------------+------+  
 
  
| host                  | user |  
 
  
+-----------------------+------+  
 
  
| %                     | root |  
 
  
| 127.0.0.1             | root |  
 
  
| 192.168.128.142       | root |  
 
  
| ::1                   | root |  
 
  
| localhost.localdomain | root |  
 
  
+-----------------------+------+  
 
  
5 rows in set (0.00 sec)
 
  
然后:  
 
  
 
 
  
mysql> grant all privileges on *.* to 'root'@'%' with grant option;  
 
  
Query OK, 0 rows affected (0.08 sec)  
 
  
  
 
  
mysql> exit  
 
  
Bye  
 
  
[root@localhost ~]# service mysql restart  
 
  
Shutting down MySQL.. SUCCESS!   
 
  
Starting MySQL.. SUCCESS!   
 
  
重启mysql即可远程登陆。

最后在提示一点,如果我们对于第一次设置密码,有一个很简单的方法,我们可以直接这样写:
 SET PASSWORD = PASSWORD('123456');

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