Suse12.1

http://dev.mysql.com/downloads/mysql/

http://blog.csdn.net/gaolu/article/details/52090174

http://haowen.blog.51cto.com/3486731/1274721

 

mysql：

http://dev.mysql.com/downloads/repo/suse/   --下载网址

1、确认是否安装了MYSQL 旧版本或应用

# rpm -qa|grep mysql

2、卸载旧版本或应用

#rpm -ev libqt4-sql-mysql-4.8.6-2.6.x86_64

3、更新Zypper 库（Adding the MySQL SLES Repository)

# wget http://repo.mysql.com//mysql57-community-release-sles12-7.noarch.rpm

---

wget http://repo.mysql.com//mysql57-community-release-sles11-7.noarch.rpm  --suse11

---

# rpm -Uvh mysql57-community-release-sles12-7.noarch.rpm

# zypper repos|grep mysql.*community

*本次安装mysql57-community 如果为非Yes 则需要使用以下命令

# zypper repos -E |grep mysql57-community

*使用以下命令是禁止

 # sudo zypper modifyrepo -d mysql57-community

*使用以下命令是允许

# sudo zypper modifyrepo -e mysql57-community

# sudo zypper refresh

4、安装MySQL 5.7 Server （Installing MySQL with Zypper)

# sudo zypper install mysql-community-server

5、初始化配置MySQL 5.7 (Starting the MySQL Server)

# sudo service mysql stop

# sudo service mysql start

-----

报错：

# vim /var/log/mysql/mysqld.log

2016-10-08T02:48:46.797210Z 0 [ERROR] Could not open unix socket lock file /var/lib/mysql/mysql.sock.lock.

2016-10-08T02:48:46.797227Z 0 [ERROR] Unable to setup unix socket lock file.

2016-10-08T02:48:46.797243Z 0 [ERROR] Aborting

解决：

rm /var/lib/mysql/mysql.sock
rm /var/lib/mysql/mysql.sock.lock

可以这样修改密码---跳过授权

修改my.cnf配置文件

# sudo vi /etc/my.cnf
在[mysqld]的段中加上一句：skip-grant-tables,如下：
[mysqld] 
datadir=/var/lib/mysql  
socket=/var/lib/mysql/mysql.sock  
skip-grant-tables 
重启服务
# sudo systemctl restart mysqld
登陆并修改密码
# mysql -uroot

mysql> use mysql

MySQL 5.7.6 以及最新版本：

mysql> update user set authentication_string=PASSWORD('rzrk123456') where User='root';

MySQL 5.7.5 或更早之前的版本:
# mysql> update user set password=PASSWORD('newpass') where User='root';

登陆测试
将my.cnf的设置修改回来，重启MySQL服务，并登陆测试：

-----

*查询安装系统时所生成的随机密码

# grep "password" /var/log/mysql/mysqld.log

2016-09-27T07:45:58.815397Z 1 [Note] A temporary password is generated for root@localhost: zrp=hfIo&3VF

# mysql -uroot -p --密码为所查询到的随机密码

 

mysql> show databases;

ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.        ---报错

*初始化密码，密码复杂性报错

mysql> set password=PASSWORD('rzrk123');

ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

*修改密码复杂性值：0orLOW

mysql> set global validate_password_policy=0;

Query OK, 0 rows affected (0.00 sec)

*修改初始密码；

mysql> SET PASSWORD = PASSWORD('rzrk123456');        ---红色为密码

成功！！

参考文献：http://www.th7.cn/db/Oracle/201606/192025.shtml

 

更改数据库存储路径：

1.检查mysql数据库存放目录

# mysql -uroot -przrk123456

mysql> show variables like '%dir%';

+-----------------------------------------+-------------------------------+

| Variable_name                           | Value                         |

+-----------------------------------------+-------------------------------+

| basedir                                 | /usr/                         |

| binlog_direct_non_transactional_updates | OFF                           |

| character_sets_dir                      | /usr/share/mysql/charsets/    |

| datadir                                 | /home/rzrk/server/data/mysql/ |

| ignore_db_dirs                          |                               |

| innodb_data_home_dir                    |                               |

| innodb_log_group_home_dir               | ./                            |

| innodb_max_dirty_pages_pct              | 75.000000                     |

| innodb_max_dirty_pages_pct_lwm          | 0.000000                      |

| innodb_tmpdir                           |                               |

| innodb_undo_directory                   | ./                            |

| lc_messages_dir                         | /usr/share/mysql/             |

| plugin_dir                              | /usr/lib64/mysql/plugin/      |

| slave_load_tmpdir                       | /tmp                          |

| tmpdir                                  | /tmp                          |

+-----------------------------------------+-------------------------------+

2.停止mysql服务

3.创建新的数据库存放目录

4.移动之前的目录文件到新的目录文件

cp -R /var/lib/mysql/* /home/rzrk/server/data/mysql

chown mysql:mysql /home/rzrk/server/data/mysql -R

vim /etc/my.cnf

datadir=/home/rzrk/server/data/mysql

重启mysql服务