在以下網址下載安裝Red Hat Enterprise Linux 7 / Oracle Linux 7 (Architecture Independent), RPM Package(mysql57-community-release-el7-8.noarch.rpm)
http://dev.mysql.com/downloads/repo/yum/
可以直接執行
yum install http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
Dependencies Resolved ========================================================================================================================================================================================================= Package Arch Version Repository Size ========================================================================================================================================================================================================= Installing: mysql57-community-release noarch el7-8 /mysql57-community-release-el7-8.noarch 8.2 k Transaction Summary ========================================================================================================================================================================================================= Install 1 Package Total size: 8.2 k Installed size: 8.2 k Is this ok [y/d/N]: y
使用yum安裝mysql server
yum install mysql-community-server Dependencies Resolved ========================================================================================================================================================================================================= Package Arch Version Repository Size ========================================================================================================================================================================================================= Installing: mysql-community-libs x86_64 5.7.14-1.el7 mysql57-community 2.1 M replacing mariadb-libs.x86_64 1:5.5.47-1.el7_2 mysql-community-libs-compat x86_64 5.7.14-1.el7 mysql57-community 2.0 M replacing mariadb-libs.x86_64 1:5.5.47-1.el7_2 mysql-community-server x86_64 5.7.14-1.el7 mysql57-community 152 M Installing for dependencies: mysql-community-client x86_64 5.7.14-1.el7 mysql57-community 24 M mysql-community-common x86_64 5.7.14-1.el7 mysql57-community 271 k Transaction Summary ========================================================================================================================================================================================================= Install 3 Packages (+2 Dependent packages) Total download size: 180 M Is this ok [y/d/N]: y
mysql 5.6 以上版本安裝時會有一個隨機密碼，在mysql日誌裏查詢
cat /var/log/mysqld.log |grep "A temporary password" [Note] A temporary password is generated for root@localhost: Thm34de873
Thm34de873就是此次mysql 5.7安裝的隨機密碼.
開啓mysqlserver服務，嘗試登陸成功。
systemctl start mysqld mysql -u root -p Enter password: Thm34de873 Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 7 Server version: 5.7.14 Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
mysql 5.7 執行操作前要求必須更改初始密碼，新密碼寫在單引號''裏。
mysql> SELECT 1;ERROR 1820 (HY000): You must SET PASSWORD before executing this statement
mysql> SET PASSWORD = PASSWORD('new_password');
Query OK, 0 rows affected (0.01 sec)
mysql> SELECT 1;+---+
| 1 |
+---+
| 1 |
+---+
1 row in set (0.00 sec)密碼有強度要求，如要關閉，在/etc/my.cnf中添加validate-password=OFF
默認root用戶只能在localhost登陸，更改爲可在任意地方登陸，方便但不安全。
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.00 sec) mysql> use mysql Database changed mysql> show tables; +---------------------------+ | Tables_in_mysql | +---------------------------+ | columns_priv | | db | | engine_cost | | event | | func | | general_log | | gtid_executed | | help_category | | help_keyword | | help_relation | | help_topic | | innodb_index_stats | | innodb_table_stats | | ndb_binlog_index | | plugin | | proc | | procs_priv | | proxies_priv | | server_cost | | servers | | slave_master_info | | slave_relay_log_info | | slave_worker_info | | slow_log | | tables_priv | | time_zone | | time_zone_leap_second | | time_zone_name | | time_zone_transition | | time_zone_transition_type | | user | +---------------------------+ 31 rows in set (0.00 sec) mysql> select user, host from user ; +-----------+-----------+ | user | host | +-----------+-----------+ | mysql.sys | localhost | | root | localhost | +-----------+-----------+ 2 rows in set (0.00 sec) mysql> update user set host = '%' where user = 'root'; Query OK, 1 row affected (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 0 mysql> select user, host from user ; +-----------+-----------+ | user | host | +-----------+-----------+ | root | % | | mysql.sys | localhost | +-----------+-----------+ 2 rows in set (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec)