1. 下载和解压mysql数据库

    wget http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.4-m14-linux-glibc2.5-x86_64.tar.gz

     tar -xvf mysql-5.7.4-m14-linux-glibc2.5-x86_64.tar.gz -C /usr/local/mysql-5.7.4

  2.创建mysql用户和修改软件的权限

        useradd -r -M -s /sbin/nologin mysql

        chown -R mysql  /usr/local/mysql-5.7.4

        chgrp -R mysql /usr/local/mysql-5.7.4 

  3.安装和初始化数据库

       cd /usr/local/mysql-5.7.4/

       scripts/mysql_install_db --user=mysql --basedir=/usr/local/mysql-5.7.4/ --datadir=/usr/local/mysql-5.7.4/data/            --必须在mysql根目录安装mysql,否则出错

      cp -a ../support-files/my-default.cnf  /etc/my.cnf

      cp -a ../support-files/mysql.server  /etc/init.d/mysqld

      cd bin/

      ./mysqld_safe --user=mysql &

      chkconfig  --add mysql

      [root@db2 scripts]# /etc/init.d/mysqld restart
      Shutting down MySQL..                                      [  OK  ]
      Starting MySQL...                                              [  OK  ]
      [root@db2 scripts]#

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安装二进制mysql-5.7数据库