Linux下安装mysql5.6.11(找点有用的信息太费劲)
(2013-04-25 10:25:09)
1、申请阿里云Linux服务器
昨天在阿里云申请了一个免费试用5天的Linux云服务器。
操作系统:Red Hat Enterprise Linux Server 5.4 64位。
CPU:1核
内存:512M
硬盘空间:20G
带宽:1Mbps。
今天在这台云服务器上安装了基本环境(JDK、Tomcat和MySQL)。本文主要在阿里云Linux云服务器安装MySQL全过程,以及对安装时遇到的问题进行记录。
2、下载MySQL服务器和客户端
访问MySQL的官网,进入其下载页面(http://dev.mysql.com/downloads/mysql/#downloads),选择MySQL Community Server,在“Select Platform”下拉框中选择“Oracle & Red Hat Linux 4 & 5”。
因为是64位的操作系统,所以选择下载如下rpm包:
(1)MySQL-server-5.6.10-1.rhel5.x86_64.rpm:MySQL服务器;
(2)MySQL-client-5.6.10-1.rhel5.x86_64.rpm:MySQL客户端;
(3)MySQL-devel-5.6.10-1.rhel5.x86_64.rpm:Mysql开发依赖包。
将这些rpm包通过FTP上传到Linux服务器的某个目录,例如:/root/software。
也可在Linux服务器上通过wget命令取得这些rpm包,Linux命令如下:
wget –c http://dev.mysql.com/get/Downloads/MySQL-5.6/MySQL-server-5.6.10-1.rhel5.x86_64.rpm/from/http://cdn.mysql.com
wget –c http://dev.mysql.com/get/Downloads/MySQL-5.6/MySQL-client-5.6.10-1.rhel5.x86_64.rpm/from/http://cdn.mysql.com
wget –c http://dev.mysql.com/get/Downloads/MySQL-5.6/MySQL-devel-5.6.10-1.rhel5.x86_64.rpm/from/http://cdn.mysql.co
3、安装MySQL服务器和客户端
3.1 安装MySQL服务器
下载完成后使用如下命令开始安装MySQL服务器:
rpm -ivh MySQL-server-5.6.10-1.rhel5.x86_64.rpm
3.1.1 安装依赖包libaio
在运行第一条安装MySQL服务器时会提示依赖包libaio.so.1没有安装,错误提示如下:
error: Failed dependencies:
libaio.so.1()(64bit) is needed by MySQL-server-5.6.10-1.rhel5.x86_64
libaio.so.1(LIBAIO_0.1)(64bit) is needed by MySQL-server-5.6.10-1.rhel5.x86_64
libaio.so.1(LIBAIO_0.4)(64bit) is needed by MySQL-server-5.6.10-1.rhel5.x86_64
需要使用yum命令快速安装依赖包libaio,运行如下命令:
yum install libaio
运行该命令时会发现在这台云服务器上无法通过yum快速安装软件,搜索了一些资料,原来是阿里云安装的是Red Hat5.4的64位系统,但是提供的是CentOS 32位的系统。错误信息参考如下:
Setting up Install Process
No package libaio available.
Nothing to do
网上找到的一个解决方案是将yum替换成CentOS的版本,我尝试了下是可行的。过程如下:
(1)通过rpm命令查看有哪些yum包,然后进行卸载
笔者在云服务器进行的操作如下:
[[email protected] software]# rpm -qa|grep yum
yum-3.2.22-20.el5
yum-metadata-parser-1.1.2-3.el5
[[email protected] software]# rpm -e --nodeps yum-3.2.22-20.el5
warning: /etc/yum.conf saved as /etc/yum.conf.rpmsave
[[email protected] software]# rpm -e --nodeps yum-metadata-parser-1.1.2-3.el5
(2)通过wget命令在163的镜像上下载CentOS的yum包
参考命令如下:
wget http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-3.2.22-40.el5.centos.noarch.rpm
wget http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-metadata-parser-1.1.2-4.el5.x86_64.rpm
wget http://mirrors.163.com/centos/5/os/x86_64/CentOS/yum-fastestmirror-1.1.16-21.el5.centos.noarch.rpm
说明:可能版本会有一些不同,请大家在http://mirrors.163.com/centos/5/os/x86_64/CentOS/下查找yum-3xxx开头、yum-metadata开头和yum-fastestmirror开头的rpm包下载。
(3)安装yum相关的rpm包
使用如下命令安装在(2)中下载的rpm包:
rpm -ivh yum-*
(4)下载CentOS-Base.repo
找一个CentOS的包资源配置库,名为CentOS-Base.repo,放到/etc/yum.repos.d/路径:
[[email protected] software]# cd /etc/yum.repos.d/
[[email protected] yum.repos.d]# wget http://www.linuxidc.com/files/2011/05/06/CentOS-Base.repo
--2013-02-22 08:58:27-- http://www.linuxidc.com/files/2011/05/06/CentOS-Base.repo
Resolving www.linuxidc.com 60.191.129.94
Connecting to www.linuxidc.com|60.191.129.94|:80 connected.
HTTP request sent, awaiting response 200 OK
Length: 1426 (1.4K) [application/octet-stream]
Saving to: `CentOS-Base.repo‘
100%[==========================================================================================>] 1,426 --.-K/s in 0s
2013-02-22 08:58:28 (124 MB/s) - `CentOS-Base.repo‘ saved [1426/1426]
(5)生成缓存文件到/var/cache/yum目录
[[email protected] yum.repos.d]# yum makecache
Loaded plugins: fastestmirror
Determining fastest mirrors
addons | 1.9 kB 00:00
addons/filelists_db | 568 B 00:00
addons/other_db
base
…… 3641/3641
base 3641/3641
Metadata Cache Created<</SPAN>p align="justify"></</SPAN>p>
(6)安装依赖包libaio
第(5)步做完后,此时可以成功运行yum install libaio命令,参考执行情况如下:
[[email protected] yum.repos.d]# yum install libaio
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Setting up Install Process
Resolving Dependencies
……
Complete
3.1.2 安装MySQL Server的rpm包
依赖包安装完成后,可以执行rpm -ivh MySQL-server-5.6.10-1.rhel5.x86_64.rpm包安装MySQL的服务器端。参考执行情况如下(省略了部分内容):
[[email protected] software]# rpm -ivh MySQL-server-5.6.10-1.rhel5.x86_64.rpm
Preparing ########################################### [100%]
1:MySQL-server ########################################### [100%]
2013-02-22 09:03:18 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
…….
A random root password has been set. You will find it in ‘/root/.mysql_secret‘.
2013-02-22 09:03:25 4132 [Note] Binlog end
2013-02-22 09:03:25 4132 [Note] InnoDB: FTS optimize thread exiting.
……
安装完成后会生成root用户的随机密码,请使用“cat /root/.mysql_secret”或类似命令进行查看。
3.2 安装MySQL客户端
服务端安装完成后,使用如下命令安装MySQL客户端,命令如下:
rpm -ivh MySQL-client-5.5.28-1.rhel5.i386.rpm
3.3 安装MySQL开发依赖包
接着安装MySQL-devel-5.5.28-1.rhel5.i386.rpm,命令如下:
rpm -ivh MySQL-devel-5.5.28-1.rhel5.i386.rpm
3.4 MySQL的几个重要目录
(1)数据库目录
/var/lib/mysql/
(2)配置文件
/usr/share/mysql(mysql.server命令及配置文件)
(3)相关命令
/usr/bin(mysqladmin mysqldump等命令)
(4)启动脚本
/etc/rc.d/init.d/(启动脚本文件mysql的目录)
若想查看MySQL安装到哪个目录,可使用“whereis mysql”命令查看,参考执行结果如下所示:
[[email protected] mysql]# whereis mysql
mysql: /usr/bin/mysql /usr/include/mysql /usr/share/mysql /usr/share/man/man1/mysql.1.gz
3.5 启动MySQL
安装完成后mysql是没有启动的,运行mysql命令会提示如下错误:
[[email protected] software]# mysql
ERROR 2002 (HY000): Can‘t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock‘ (2)
可使用如下命令启动MySQL:
service mysql start
或者使用如下命令:
/etc/init.d/mysql start
3.6 登录MySQL
使用mysql命令登录MySQL服务器,运行MySQL的命令时,会提示需要设置root用户密码,提示信息如下:
[[email protected] mysql]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 5
Server version: 5.6.10
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> show databases;
ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
可使用SET PASSWORD命令修改root用户的密码,参考如下:
mysql> SET PASSWORD = PASSWORD(‘root123456‘);
Query OK, 0 rows affected (0.00 sec)
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
3.7 设置开机自启动
设置开机自启动的方法有很多,例如使用chkconfig命令,另外也可以在/etc/rc.local文件中加上如下MySQL的启动命令,例如:
/etc/init.d/mysql start
设置完成后重启系统,使用natstat –nat命令可看到MySQL的3306端口:
netstat -nat
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State
tcp 0 0 127.0.0.1:8005 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:8009 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN