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这篇文章主要介绍了 OEL7.6 源码安装 MYSQL5.7 的示例分析，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让丸趣 TV 小编带着大家一起了解一下。
首先官网下载安装包 https://dev.mysql.com/downloads/mysql/5.7.html#downloads
然后上传解压至 /usr/local 目录
[root@localhost db]# tar -xf mysql-5.7.26-linux-glibc2.12-x86_64.tar
[root@localhost db]# tar -xzf mysql-5.7.26-linux-glibc2.12-x86_64.tar.gz
[root@localhost db]# mv mysql-5.7.26-linux-glibc2.12-x86_64 /usr/local/mysql
[root@localhost db]#然后创建 mysql 用户和组以及数据目录
[root@localhost db]# mv mysql-5.7.26-linux-glibc2.12-x86_64 /usr/local/mysql
[root@localhost db]# groupadd mysql
[root@localhost db]# useradd mysql -g mysql
[root@localhost db]# cd /usr/local/mysql
[root@localhost mysql]# mkdir data
[root@localhost mysql]# chown mysql: -R /usr/local/mysql/
[root@localhost mysql]#然后初始化数据并记录临时密码
[root@localhost mysql]# bin/mysqld --initialize --user=mysql --datadir /usr/local/mysql/data
2019-07-26T01:34:24.479757Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2019-07-26T01:34:24.682695Z 0 [Warning] InnoDB: New log files created, LSN=45790
2019-07-26T01:34:24.717419Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2019-07-26T01:34:24.723157Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 8009a802-af45-11e9-839c-000c29984aae.
2019-07-26T01:34:24.723996Z 0 [Warning] Gtid table is not ready to be used. Table mysql.gtid_executed cannot be opened.
2019-07-26T01:34:24.724629Z 1 [Note] A temporary password is generated for root@localhost: ucZ5w5ZkSq;1
[root@localhost mysql]#然后修改 /etc/my.cnf 配置文件中 datadir 为 /usr/local/mysql/data
[root@localhost mysql]# cat /etc/my.cnf
[mysqld]
datadir=/usr/local/mysql/data
[root@localhost mysql]#然后将 mysql 加入 init.d 目录并启动 mysql
[root@localhost mysql]# cp support-files/mysql.server /etc/init.d/mysqld
[root@localhost mysql]# /etc/init.d/mysqld start
Starting MySQL.Logging to /usr/local/mysql/data/localhost.localdomain.err .
SUCCESS!
[root@localhost mysql]# ps -ef|grep mysql
root 12957 1 0 09:37 pts/0 00:00:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/usr/local/mysql/data --pid-file=/usr/local/mysql/data/localhost.localdomain.pid
mysql 13057 12957 4 09:37 pts/0 00:00:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=localhost.localdomain.err --pid-file=/usr/local/mysql/data/localhost.localdomain.pid
root 13092 10198 0 09:37 pts/0 00:00:00 grep --color=auto mysql
[root@localhost mysql]#最后 mysql/bin 加入 path, 并登陆数据库并重设密码
[root@localhost bin]# ./mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.26
Copyright (c) 2000, 2019, 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 set password=password( mysql
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql exit
[root@localhost bin]# ./mysql -u root -p
Enter password:
ERROR 1045 (28000): Access denied for user root @ localhost (using password: YES)
[root@localhost bin]# ./mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.7.26 MySQL Community Server (GPL)
Copyright (c) 2000, 2019, 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 show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
4 rows in set (0.01 sec)
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