mysql5.5在linux服务器上的安装_MySQL
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mysql5.5在linux服务器上的安装 此次安装的为mysql5.5,安装在linux服务器上,具体安装步骤如下:1.新建mysql用户组和用户groupadd mysqluseradd -r -g mysql mysql 2.下载mysql,解压后用符号连接至mysql,最新的可以去http://www.mysql.com上下载cd /usr/localwget http://cdn.mysql.com/Downloads/MySQL-5.5/mysql-5.5.27-linux2.6-x86_64.tar.gztar zxvf mysql-5.5.27-linux2.6-x86_64.tar.gz ln -s mysql-5.5.27-linux2.6-x86_64 mysql
3.进入mysql目录,将文件所属改为mysql用户和用户组cd mysqlchown -R mysql .chgrp -R mysql . 4.这里把mysql数据库的数据文件和mysql所在目录分开,便于管理和切分,我是放在/logs/mysqldata下的cd /logsmkdir mysqldata5.安装数据库的数据文件,安装完后将mysql相关文件的所属用户改为rootcd /usr/local/mysqlscripts/mysql_install_db --user=mysql --datadir=/logs/mysqldatachown -R root .
把刚才建的数据文件的所属改为mysqlchown -R mysql /logs/mysqldatachgrp -R mysql /logs/mysqldata 6.复制配置和启动文件至相关目录cp support-files/my-medium.cnf /etc/my.cnfcp support-files/mysql.server /etc/init.d/mysql.server7.由于安装好之后没有密码,所以正常启是登录不了的,可以以安装模式启动,然后修改下密码bin/mysqld_safe --user=mysql --datadir=/logs/mysqldata &上面是在mysql目录下执行的,如果想在任何目录下都可以执行,需要把mysql的安装目录放到path中去可以执行env命令查看下path的内容 执行vi /etc/profile,修改配置文件,在末尾加上:PATH=/usr/local/mysql/bin:$PATH:wq保存退出
执行source /etc/profile让设置立即生效8.登录mysql后,修改下root密码以安全模式启mysql后,执行mysql -uroot可以直接登录登录后执行:use mysql;update user set password=password('修改后的密码') ;修改成功后exit;退出mysql命令行 9.修改完后再修改下mysql启动文件,然后重新启动mysql执行vi /etc/init.d/mysql.server,把基本目录和数据目录修改为:basedir=/usr/local/mysqldatadir=/logs/mysqldata再执行:/etc/init.d/mysql.server restart重启mysql 至此,mysql安装完成,后续会讲一些调优,包括主从配置,灾难恢复,集群等等。 bitsCN.com

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