Linux下安装MySQL

发布于:2024-06-14 ⋅ 阅读:(50) ⋅ 点赞:(0)
  1. 用wget下载MySQL8.0的地址:wget https://dev.mysql.com/get/Downloads/MySQL-8.0/mysql-8.0.18-linux-glibc2.12-x86_64.tar.xz
  2. 解压.xz文件:xz -d mysql-8.0.18-linux-glibc2.12-x86_64.tar.xz
  3. 解压.tar文件:tar -xvf mysql-8.0.18-linux-glibc2.12-x86_64.tar
  4. 将解压后的目录移动到/usr/local/下,并改名:mv mysql-8.0.18-linux-glibc2.12-x86_64 /usr/local/mysql
  5. 新建data目录:
    cd /usr/local/mysql
    mkdir data
  6. 新建mysql用户组和用户:
    groupadd mysql
    useradd -r -s /sbin/nologin -g mysql mysql -d /usr/local/mysql
  7. 改变mysql目录及子目录的用户组和所有者:
    cd /usr/local/mysql
    chown -R mysql .
    chgrp -R mysql .
    注意:后面有 .
  8. 初始化mysql并配置参数:
    cd /usr/local/mysql/bin
    ./mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data
    如果碰到./mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory错误,执行一下安装:
    yum install -y libaio
  9. 此时生成一个临时密码:A temporary password is generated for root@localhost: iA=Fzthz<97j
  10. 配置rsa加密:
    cd /usr/local/mysql/bin/
    ./mysql_ssl_rsa_setup --datadir=/usr/local/mysql/data
  11. 系统配置文件:
    cd /usr/local/mysql/support-files/
    cp mysql.server /etc/init.d/mysql
  12. 配置/etc/init.d/mysql,修改以下两项:
    vi /etc/init.d/mysql
    basedir=/usr/local/mysql
    datadir=/usr/local/mysql/data
  13. 启动mysql:sudo service mysql start
    如果出现错误:mysqld_safe error: log-error set to ‘/var/log/mariadb/mariadb.log’, however file don’t exists.
    创建目录和文件,并授权给mysql:
    cd /var/log/
    mkdir mariadb
    cd mariadb
    touch mariadb.log
    cd …
    chown -R mysql:mysql mariadb/
    如果出现错误:mysqld_safe Directory ‘/var/lib/mysql’ for UNIX socket file don’t exists.
    创建目录,并授权给mysql:
    cd /var/lib/
    mkdir mysql
    chown -R mysql:mysql mysql/
    如果出现错误:Starting MySQL.The server quit without updating PID file (/[FAILED]mysql/IOTEDU-S02.pid).
    查错误日志/var/log/mariadb/mariadb.log