Linux安裝Mysql5,7完整教程

Linux安裝Mysql5.7完整教程

1. 下載Mysql5.7壓縮包，點擊下載

2. 解壓tar -xvf mysql-5.7.28-linux-glibc2.12-x86_64.tar.gz

3. 移動到/usr/local/mysql下 mv mysql-5.7.28-linux-glibc2.12-x86_64 /usr/local/mysql

4. 新建data目錄用來存儲mysql數據mkdir /usr/local/mysql/data

5. 新建mysql用戶組、mysql用戶並將/usr/local/mysql的所有者及所屬組改爲mysql

   groupadd mysql
   useradd mysql -g mysql
   chown -R mysql.mysql /usr/local/mysql
   

6. 修改默認配置文件vim /etc/my.cnf

   [mysqld]
   datadir=/usr/local/mysql/data
   basedir=/usr/local/mysql
   socket=/tmp/mysql.sock
   user=mysql
   port=3306
   character-set-server=utf8mb4
   # 禁用符號鏈接
   symbolic-links=0
   # 取消密碼驗證
   #skip-grant-tables
   [mysqld_safe]
   log-error=/var/log/mysqld.log
   pid-file=/var/run/mysqld/mysqld.pid
   

7. 初始化默認配置

   /usr/local/mysql/bin/mysqld --defaults-file=/etc/my.cnf --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data --initialize
   

   注意：

   1. 如果是重新初始化，需要清空/usr/local/mysql/data/下的文件。
   2. 執行成功後備份日誌最後的打印的初始化登錄密碼如：A temporary password is generated for root@localhost: lsqko?;lp0hI
   3. 如果執行報如下錯誤：error while loading shared libraries: libnuma.so.1: cannot open shared object file: No such file or directory，則先執行yum -y install numactl.x86_64,然後繼續執行上面的語句

8. 將mysql加入系統服務

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

9. 設置開機自啓

   chkconfig mysql on
   

10. 開啓數據庫服務

    service mysql start
    

11. 修改密碼

    /usr/local/mysql/bin/mysql -u root -p
    mysql> SET PASSWORD = PASSWORD('你的密碼');
    mysql> ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER;
    mysql> flush privileges;
    mysql> exit;
    

12. 允許遠程連接

    /usr/local/mysql/bin/mysql -u root -p
    mysql> use mysql;
    mysql> update user set host='%' where user = 'root';
    mysql> flush privileges;
    mysql> exit;
    

好了，到此安裝完成！