Centos7下安装mysql8

2024年4月25日 132次阅读 来源: 追风大小伙
  1. 下载(速度慢时可以去清华镜像下载)
  2. 上传到服务器（数据库服务器一般不能连接外网，所以需要通过这种方式安装）

  3. 解压

    • 高版本tar

      [root@localhost ~]# tar -zxvf mysql-8.0.17-linux-glibc2.12-x86_64.tar.xz
[root@localhost ~]# mv /usr/local/mysql-8.0.17-linux-glibc2.12-x86_64/ /usr/local/mysql

    • 低版本tar

      [root@localhost ~]# xz -d mysql-8.0.17-linux-glibc2.12-x86_64.tar.xz
[root@localhost ~]# tar xvf mysql-8.0.17-linux-glibc2.12-x86_64.tar -C /usr/local/
[root@localhost ~]# mv /usr/local/mysql-8.0.17-linux-glibc2.12-x86_64/ /usr/local/mysql

  4. 添加用户并附加权限

    [root@localhost ~]# useradd mysql
[root@localhost ~]# chown -R mysql.mysql /usr/local/mysql/

  5. 初始化(注意控制台输出的账户和密码 hrKXDyFs?9#N)

    [root@localhost ~]# /usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

  6. 配置

    [root@localhost ~]# mkdir /usr/local/mysql/logs
[root@localhost ~]# touch /usr/local/mysql/logs/log.err
[root@localhost ~]# touch /usr/local/mysql/data/localhost.localdomain.pid
[root@localhost ~]# chown -R mysql.mysql /usr/local/mysql/

[root@localhost ~]# vi /etc/my.cnf
#修改
[client]
socket=/usr/local/mysql/mysql.sock
default-character-set = utf8mb4

[mysqld]
datadir=/usr/local/mysql/data
socket=/usr/local/mysql/mysql.sock
symbolic-links=0
sql_mode='STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION'
max_connections=800
character-set-server=utf8mb4
collation-server=utf8mb4_general_ci
default-authentication-plugin=mysql_native_password
[mysqld_safe]
log-error=/usr/local/mysql/logs/log.err
pid-file=/usr/local/mysql/data/localhost.localdomain.pid
!includedir /etc/my.cnf.d
[root@localhost ~]# vi /etc/profile
# 添加环境变量
export PATH=$PATH:/usr/local/mysql/bin:/usr/local/mysql/lib
# 使配置生效
[root@localhost ~]# source /etc/profile

  7. 启动设置

    [root@localhost ~]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql
[root@localhost ~]# chkconfig --add /usr/local/mysql/support-files/mysql

  8. 启动

    [root@localhost ~]# systemctl start mysql

  9. 登录

    mysql -uroot -phrKXDyFs?9#N

  10. 修改密码后才能进行其他操作

    alter user 'root'@'localhost' identified by 'wangBin_123'
    原文作者：追风大小伙
    原文地址: https://segmentfault.com/a/1190000020507606
    本文转自网络文章，转载此文章仅为分享知识，如有侵权，请联系博主进行删除。
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