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  • linux上安装mysql5.7

    1、下载tar包,这里使用wget从官网下载

    wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz

    2、将mysql安装到/usr/local/mysql下

    # 解压

    tar -xvf mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz

    # 移动

    mv mysql-5.7.22-linux-glibc2.12-x86_64 /usr/local/

    # 重命名

    mv /usr/local/mysql-5.7.22-linux-glibc2.12-x86_64 /usr/local/mysql

    3、新建data目录

    mkdir /usr/local/mysql/data

    4、新建mysql用户、mysql用户组

    # mysql用户组

    groupadd mysql

    # mysql用户

    useradd mysql -g mysql

    5、将/usr/local/mysql的所有者及所属组改为mysql

    chown -R mysql.mysql /usr/local/mysql

    6、配置

    /usr/local/mysql/bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data

    # 如果出现以下错误:

    2018-07-14 06:40:32 [WARNING] mysql_install_db is deprecated. Please consider switching to mysqld --initialize
    2018-07-14 06:40:32 [ERROR]   Child process: /usr/local/mysql/bin/mysqldterminated prematurely with errno= 32
    2018-07-14 06:40:32 [ERROR]   Failed to execute /usr/local/mysql/bin/mysqld --bootstrap --datadir=/usr/local/mysql/data --lc-messages-dir=/usr/local/mysql/share --lc-messages=en_US --basedir=/usr/local/mysql
    -- server log begin --
    
    -- server log end --

    # 则使用以下命令:

    /usr/local/mysql/bin/mysqld --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data --initialize

    # 如果出现以下错误:

    /usr/local/mysql/bin/mysqld: error while loading shared libraries: libnuma.so.1: cannot open shared object file: No such file or directory

    # 则执行以下命令:

    yum -y install numactl

    # 完成后继续安装:

    /usr/local/mysql/bin/mysqld --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data --initialize

    # 编辑/etc/my.cnf

    复制代码
    [mysqld]
    datadir=/usr/local/mysql/data
    basedir=/usr/local/mysql
    socket=/tmp/mysql.sock
    user=mysql
    port=3306
    character-set-server=utf8
    # 取消密码验证
    skip-grant-tables # Disabling symbolic-links is recommended to prevent assorted security risks symbolic-links=0 # skip-grant-tables [mysqld_safe] log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid
    复制代码

    7、开启服务

    # 将mysql加入服务

    cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql

    # 开机自启

    chkconfig mysql on

    # 开启

    service mysql start

    8、设置密码

    # 登录(由于/etc/my.cnf中设置了取消密码验证,所以此处密码任意)

    /usr/local/mysql/bin/mysql -u root -p

    # 操作mysql数据库

    >>use mysql;

    # 修改密码

    >>update user set authentication_string=password('你的密码') where user='root';

    >>flush privileges;

    >>exit;

    9、将/etc/my.cnf中的skip-grant-tables删除

    10、登录再次设置密码(不知道为啥如果不再次设置密码就操作不了数据库了)

    /usr/local/mysql/bin/mysql -u root -p

     >>ALTER USER 'root'@'localhost' IDENTIFIED BY '修改后的密码';

    >>exit;

    11、允许远程连接

    /usr/local/mysql/bin/mysql -u root -p

    >>use mysql;

    >>update user set host='%' where user = 'root';

    >>flush privileges;

    >>eixt;

    12、添加快捷方式

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

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  • 原文地址:https://www.cnblogs.com/liaozhenghan/p/13278258.html
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