linux安装mysql

 

 

1. 到mysql官网下载mysql编译好的二进制安装包，在下载页面Select Platform:选项选择linux-generic，然后把页面拉到底部，64位系统下载Linux - Generic (glibc 2.5) (x86, 64-bit)，32位系统下载Linux - Generic (glibc 2.5) (x86, 32-bit)

    

2.  解压32位安装包:

   进入安装包所在目录，执行命令：tar mysql-5.6.17-linux-glibc2.5-i686.tar.gz

    

    

3.  复制解压后的mysql目录到系统的本地软件目录:

   执行命令：cp mysql-5.6.17-linux-glibc2.5-i686 /usr/local/mysql -r

   注意：目录结尾不要加/

    

    

4.  添加系统mysql组和mysql用户：

   执行命令：groupadd mysql和useradd -r -g mysql mysql

    

    

    

5.  安装数据库：

   进入安装mysql软件目录：执行命令 cd /usr/local/mysql

   修改当前目录拥有者为mysql用户：执行命令 chown -R mysql:mysql ./

   安装数据库：执行命令 ./scripts/mysql_install_db --user=mysql

6.  

   报错：Installing MySQL system tables..../bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or director

   解决办法：https://blog.csdn.net/u013168253/article/details/80221565

   修改当前目录拥有者为root用户：执行命令 chown -R root:root ./

   修改当前data目录拥有者为mysql用户：执行命令 chown -R mysql:mysql data

   到此数据库安装完毕

    

    

7.  启动mysql服务和添加开机启动mysql服务：

   添加开机启动：执行命令cp support-files/mysql.server /etc/init.d/mysql，把启动脚本放到开机初始化目录

   启动mysql服务：执行命令service mysql start

8.  

   报错：

   错误信息： 
   Starting MySQL.touch: cannot touch ‘/var/log/mariadb/mariadb.log‘: No such file or directory 
   chmod: cannot access ‘/var/log/mariadb/mariadb.log‘: No such file or directory 
   touch: cannot touch ‘/var/log/mariadb/mariadb.log‘: No such file or directory 
   chown: cannot access ‘/var/log/mariadb/mariadb.log‘: No such file or directory 
   /usr/local/mysql/bin/mysqld_safe: line 129: /var/log/mariadb/mariadb.log: No such file or directory 
   /usr/local/mysql/bin/mysqld_safe: line 166: /var/log/mariadb/mariadb.log: No such file or directory 
   touch: cannot touch ‘/var/log/mariadb/mariadb.log‘: No such file or directory 
   chown: cannot access ‘/var/log/mariadb/mariadb.log‘: No such file or directory 
   chmod: cannot access ‘/var/log/mariadb/mariadb.log‘: No such file or directory 
   /usr/local/mysql/bin/mysqld_safe: line 129: /var/log/mariadb/mariadb.log: No such file or directory 
   ERROR! The server quit without updating PID file (/var/lib/mysql/localhost.localdomain.pid).

   解决方法： 
   1 mkdir /var/log/mariadb 
   2 chmod 700 /var/log/mariadb
    

   执行命令：ps -ef|grep mysql 看到mysql服务说明启动成功，如图

    

    

9.  修改mysql的root用户密码，root初始密码为空的：

   执行命令：./bin/mysqladmin -u root password '密码'

10. 报错：Can’t connect to local MySQL server through socket ‘/tmp/mysql.sock’ (2)

11. 解决办法：

    查看/tmp文件夹的确没有mysql.sock文件，

    通过find命令查找

    [root@localhost /]# find / -name mysql.sock
    /var/lib/mysql/mysql.sock

    原来安装到/var/lib/mysql/mysql.sock这个位置啦，我们需要修改my.cnf文件

    [root@localhost /]# vi /usr/local/mysql/my.cnf

    [client]
    character-set-server = utf8
    port    = 3306
    socket  = /var/lib/mysql/mysql.sock 设置软连接：ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock

12. 把mysql客户端放到默认路径：

    ln -s /usr/local/mysql/bin/mysql /usr/local/bin/mysql

    注意：建议使用软链过去，不要直接包文件复制，便于系统安装多个版本的mysql

登陆mysql:  mysql -hlocalhost -uroot -p

报错：-bash: mysql: command not found

解决办法：

ln -s /usr/local/mysql/bin/mysql /usr/bin