1.修改配置檔案，獲取許可權登入 [email protected]#vi /etc/my,cnf 新增：–skip-grant-tables [email protected]#systemctl restart mysqld 2.登入建立root使用者 [email protected]#mysql mysql>use mysql; mysql>insert into user(User,authentication_string,ssl_cipher x509_issuer x509_subject) values(‘root’,’’,’’,’’,’’); 3.更新root使用者許可權

update user set Host=‘localhost’,select_priv=‘y’, insert_priv=‘y’,update_priv=‘y’,Alter_priv=‘y’,delete_priv=‘y’,create_priv=‘y’,drop_priv=‘y’,reload_priv=‘y’,shutdown_priv=‘y’,Process_priv=‘y’,file_priv=‘y’,grant_priv=‘y’,References_priv=‘y’,index_priv=‘y’,create_user_priv=‘y’,show_db_priv=‘y’,super_priv=‘y’,create_tmp_table_priv=‘y’,Lock_tables_priv=‘y’,execute_priv=‘y’,repl_slave_priv=‘y’,repl_client_priv=‘y’,create_view_priv=‘y’,show_view_priv=‘y’,create_routine_priv=‘y’,alter_routine_priv=‘y’,create_user_priv=‘y’ where user=‘root’; 4.修改配置檔案許可權 將1中的–skip-grant-tables刪除 [email protected]#systemctl restart mysqld [email protected]#mysql -uroot -p password: -----密碼為空