linux安装mysql5.7.36

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1、检查是否已安装过mariadb，若有便删除（linux系统自带的）

1. rpm -qa | grep mariadb

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1. rpm -e --nodeps mariadb-libs-5.5.44-2.el7.centos.x86_64

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2、检查是否已安装过mysql，若有便删除（linux系统自带的）

1. rpm -qa | grep mysql

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1. rpm -e –-nodeps mysql-libs-5.1.52.x86_64

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3、检查mysql组和用户是否存在，如无创建：

1. cat /etc/group | grep mysql

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1. cat /etc/passwd |grep mysql

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1. groupadd mysql

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1. useradd -r -g mysql mysql

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4、从官网下载mysql安装包，解压后移动到/usr/local/mysql下

1. mkdir /usr/local/mysql

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1. wget https://cdn.mysql.com/Downloads/MySQL-5.7/mysql-5.7.36-linux-glibc2.12-x86_64.tar.gz
   

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1. tar xvf mysql-5.7.36-linux-glibc2.12-x86_64.tar.gz

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1. mv mysql-5.7.36-linux-glibc2.12-x86_64 mysql
   

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1. cd mysql
   

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5、在mysql下添加data目录

1. mkdir /home/mysql/data

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6、更改mysql目录下所有的目录及文件夹所属组合用户

1. cd /home

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1. chown -R mysql:mysql mysql/

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1. chmod -R 755 mysql/

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7、编译安装并初始化mysql，记住命令行末尾的密码：

注意：报错1：./bin/mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file:

1. yum install -y libaio

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报错2：bin/mysqld: error while loading shared libraries: libnuma.so.1:

1. yum -y install numactl

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1. /home/mysql/bin/mysqld --initialize --user=mysql --datadir=/home/mysql/data --basedir=/home/mysql
   

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2017-08-31T08:50:23.910440Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2017-08-31T08:50:23.910635Z 0 [ERROR] Can't find error-message file '/usr/local/mysql/--datadir=/usr/local/mysql/data/share/errmsg.sys'. Check error-message file location and 'lc-messages-dir' con figuration directive.2017-08-31T08:50:24.709286Z 0 [Warning] InnoDB: New log files created, LSN=45790 2017-08-31T08:50:24.767540Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. 2017-08-31T08:50:24.892629Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 6e083b8f-8e29-11e7-88b1- 005056b427be.2017-08-31T08:50:24.895674Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2017-08-31T08:50:24.896645Z 1 [Note] A temporary password is generated for root@localhost: gFamcspKm2+u

注意：修改下
/home/mysql/support-files/mysql.server在里面修改安装路径和数据路径位置

8、启动mysql服务

1. /home/mysql/support-files/mysql.server start

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9、做个软连接，重启服务

1. ln -s /home/mysql/support-files/mysql.server /etc/init.d/mysql

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重启mysql

1. service mysql restart

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10、做个软链接，将安装目录下的mysql 放在/usr/bin 目录下

1. ln -s /home/mysql/bin/mysql /usr/bin

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11、登录msyql，输入密码（密码为步骤7初始化生成的密码）

1. mysql -u root -p

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Enter password:

12、修改密码并开放远程

1. alter user 'root'@'localhost' identified by '123456';

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1. use mysql;

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1. update user set user.Host='%' where user.User='root';

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1. flush privileges;

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1. quit

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13、编辑my.cnf，添加配置文件，配置内容为

1. vim /home/mysql/my.cnf

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1. [mysqld]port = 3306sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

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赋予可执行权限

1. chmod +x /etc/init.d/mysqld

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添加服务

1. chkconfig --add mysqld

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显示服务列表

1. chkconfig --list

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重启服务器

1. reboot

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