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第一步：獲取mysql yum源
創(chuàng)新互聯(lián)從2013年創(chuàng)立，先為寧洱等服務(wù)建站，寧洱等地企業(yè)，進(jìn)行企業(yè)商務(wù)咨詢服務(wù)。為寧洱企業(yè)網(wǎng)站制作PC+手機(jī)+微官網(wǎng)三網(wǎng)同步一站式服務(wù)解決您的所有建站問題。
進(jìn)入mysql官網(wǎng)獲取RPM包下載地址
https://dev.mysql.com/downloads/repo/yum/
點(diǎn)擊下載
獲取到下載鏈接：
https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm
--------------------------------------------------------------------------------
第二步：下載和安裝mysql源
?進(jìn)入mysql文件夾，沒有的自行創(chuàng)建
[root@VM_0_10_centos /]# cd /usr/local/mysql/
[root@VM_0_10_centos mysql]#
?下載源安裝包
[root@VM_0_10_centos mysql]# wget https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm
--2018-08-04 10:29:39-- https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm
Resolving repo.mysql.com (repo.mysql.com)... 23.219.33.198
Connecting to repo.mysql.com (repo.mysql.com)|23.219.33.198|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 25820 (25K) [application/x-RedHat-package-manager]
Saving to: ‘mysql80-community-release-el7-1.noarch.rpm’
100%[==========================================================================>] 25,820 112KB/s in 0.2s
2018-08-04 10:29:40 (112 KB/s) - ‘mysql80-community-release-el7-1.noarch.rpm’ saved [25820/25820]
[root@VM_0_10_centos mysql]# ll
total 28
-rw-r--r-- 1 root root 25820 Apr 18 13:24 mysql80-community-release-el7-1.noarch.rpm
[root@VM_0_10_centos mysql]#
?安裝mysql源
[root@VM_0_10_centos mysql]# yum -y localinstall mysql80-community-release-el7-1.noarch.rpm
第三步：在線安裝MySQL
[root@VM_0_10_centos mysql]# yum -y install mysql-community-server
下載東西比較多，等幾分鐘。
第四步：啟動Mysql服務(wù)
[root@VM_0_10_centos mysql]# systemctl start mysqld
第五步：設(shè)置開機(jī)啟動
[root@VM_0_10_centos mysql]# systemctl enable mysqld
[root@VM_0_10_centos mysql]# systemctl daemon-reload
第六步：修改root本地登錄密碼
mysql安裝完成之后，在/var/log/mysqld.log文件中給root生成了一個臨時的默認(rèn)密碼。用grep命令搜一下
[root@VM_0_10_centos mysql]# grep "A temporary password is generated for root@localhost" /var/log/mysqld.log
2018-08-02T02:19:55.829527Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: !J:KUwU9y0ZR
2018-08-02T04:49:34.979689Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: pw2018-08-04T02:40:46.781768Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: nNyK,Y)Wd0-G
[root@VM_0_10_centos mysql]#
這里有三條搜索結(jié)果，因?yàn)槲抑貜?fù)裝了3次MySQL，如果第一次安裝是只會有一條的。
直接拿到臨時默認(rèn)密碼 : nNyK,Y)Wd0-G
?登錄MySQL
[root@VM_0_10_centos mysql]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.12
Copyright (c) 2000, 2018, 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>
mysql>
mysql>
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.01 sec)
mysql>
再次登錄就可以登錄成功了。
第8步：編碼
mysql> show variables like '%character%';
+--------------------------+--------------------------------+
| Variable_name | Value |
+--------------------------+--------------------------------+
| character_set_client | utf8mb4 |
| character_set_connection | utf8mb4 |
| character_set_database | utf8mb4 |
| character_set_filesystem | binary |
| character_set_results | utf8mb4 |
| character_set_server | utf8mb4 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql-8.0/charsets/ |
+--------------------------+--------------------------------+
8 rows in set (0.01 sec)
mysql>
MySQL8.0默認(rèn)就是utf8mb4編碼，無需更改。
OK 至此 Mysql安裝配置完畢；
全流程操作記錄
[root@VM_0_10_centos ~]#
[root@VM_0_10_centos /]# cd /usr/local/mysql/
[root@VM_0_10_centos mysql]# wget https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm
--2018-08-04 10:29:39-- https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm
Resolving repo.mysql.com (repo.mysql.com)... 23.219.33.198
Connecting to repo.mysql.com (repo.mysql.com)|23.219.33.198|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 25820 (25K) [application/x-redhat-package-manager]
Saving to: ‘mysql80-community-release-el7-1.noarch.rpm’
100%[==========================================================================>] 25,820 112KB/s in 0.2s
2018-08-04 10:29:40 (112 KB/s) - ‘mysql80-community-release-el7-1.noarch.rpm’ saved [25820/25820]
[root@VM_0_10_centos mysql]# ll
total 28
-rw-r--r-- 1 root root 25820 Apr 18 13:24 mysql80-community-release-el7-1.noarch.rpm
[root@VM_0_10_centos mysql]# yum -y localinstall mysql80-community-release-el7-1.noarch.rpm
Loaded plugins: fastestmirror, langpacks
Examining mysql80-community-release-el7-1.noarch.rpm: mysql80-community-release-el7-1.noarch
Marking mysql80-community-release-el7-1.noarch.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package mysql80-community-release.noarch 0:el7-1 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=================================================================================================================================================================================================================
Package Arch Version Repository Size
=================================================================================================================================================================================================================
Installing:
mysql80-community-release noarch el7-1 /mysql80-community-release-el7-1.noarch 31 k
Transaction Summary
=================================================================================================================================================================================================================
Install 1 Package
Total size: 31 k
Installed size: 31 k
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
Installing : mysql80-community-release-el7-1.noarch 1/1
Verifying : mysql80-community-release-el7-1.noarch 1/1
Installed:
mysql80-community-release.noarch 0:el7-1
Complete!
[root@VM_0_10_centos mysql]# yum -y install mysql-community-server
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
epel 12641/12641
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-server.x86_64 0:8.0.12-1.el7 will be installed
--> Processing Dependency: mysql-community-common(x86-64) = 8.0.12-1.el7 for package: mysql-community-server-8.0.12-1.el7.x86_64
--> Processing Dependency: mysql-community-client(x86-64) >= 8.0.0 for package: mysql-community-server-8.0.12-1.el7.x86_64
--> Running transaction check
---> Package mysql-community-client.x86_64 0:8.0.12-1.el7 will be installed
--> Processing Dependency: mysql-community-libs(x86-64) >= 8.0.0 for package: mysql-community-client-8.0.12-1.el7.x86_64
---> Package mysql-community-common.x86_64 0:8.0.12-1.el7 will be installed
--> Running transaction check
---> Package mysql-community-libs.x86_64 0:8.0.12-1.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
=================================================================================================================================================================================================================
Package Arch Version Repository Size
=================================================================================================================================================================================================================
Installing:
mysql-community-server x86_64 8.0.12-1.el7 mysql80-community 349 M
Installing for dependencies:
mysql-community-client x86_64 8.0.12-1.el7 mysql80-community 26 M
mysql-community-common x86_64 8.0.12-1.el7 mysql80-community 541 k
mysql-community-libs x86_64 8.0.12-1.el7 mysql80-community 2.2 M
Transaction Summary
=================================================================================================================================================================================================================
Install 1 Package (+3 Dependent packages)
Total download size: 377 M
Installed size: 1.7 G
Downloading packages:
(1/4): mysql-community-common-8.0.12-1.el7.x86_64.rpm | 541 kB 00:00:05
(2/4): mysql-community-client-8.0.12-1.el7.x86_64.rpm | 26 MB 00:00:12
(3/4): mysql-community-server-8.0.12-1.el7.x86_64.rpm | 349 MB 00:02:26
(4/4): mysql-community-libs-8.0.12-1.el7.x86_64.rpm | 2.2 MB 00:03:37
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 1.7 MB/s | 377 MB 00:03:43
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : mysql-community-common-8.0.12-1.el7.x86_64 1/4
Installing : mysql-community-libs-8.0.12-1.el7.x86_64 2/4
Installing : mysql-community-client-8.0.12-1.el7.x86_64 3/4
Installing : mysql-community-server-8.0.12-1.el7.x86_64 4/4
Verifying : mysql-community-common-8.0.12-1.el7.x86_64 1/4
Verifying : mysql-community-libs-8.0.12-1.el7.x86_64 2/4
Verifying : mysql-community-client-8.0.12-1.el7.x86_64 3/4
Verifying : mysql-community-server-8.0.12-1.el7.x86_64 4/4
Installed:
mysql-community-server.x86_64 0:8.0.12-1.el7
Dependency Installed:
mysql-community-client.x86_64 0:8.0.12-1.el7 mysql-community-common.x86_64 0:8.0.12-1.el7 mysql-community-libs.x86_64 0:8.0.12-1.el7
Complete!
[root@VM_0_10_centos mysql]# systemctl start mysqld
[root@VM_0_10_centos mysql]# systemctl enable mysqld
[root@VM_0_10_centos mysql]# systemctl daemon-reload
[root@VM_0_10_centos mysql]# grep "A temporary password is generated for root@localhost" /var/log/mysqld.log
2018-08-02T02:19:55.829527Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: !J:KUwU9y0ZR
2018-08-02T04:49:34.979689Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: pw2018-08-04T02:40:46.781768Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: nNyK,Y)Wd0-G
[root@VM_0_10_centos mysql]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.12
Copyright (c) 2000, 2018, 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> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.01 sec)
mysql> show variables like '%character%';
+--------------------------+--------------------------------+
| Variable_name | Value |
+--------------------------+--------------------------------+
| character_set_client | utf8mb4 |
| character_set_connection | utf8mb4 |
| character_set_database | utf8mb4 |
| character_set_filesystem | binary |
| character_set_results | utf8mb4 |
| character_set_server | utf8mb4 |
| character_set_system | utf8 |
| character_sets_dir | /usr/share/mysql-8.0/charsets/ |
+--------------------------+--------------------------------+
8 rows in set (0.01 sec)
這里有個問題，新密碼設(shè)置的時候如果設(shè)置的過于簡單會報錯：
原因是因?yàn)镸ySQL有密碼設(shè)置的規(guī)范，具體是與validate_password_policy的值有關(guān)：
MySQL完整的初始密碼規(guī)則可以通過如下命令查看：
mysql> SHOW VARIABLES LIKE 'validate_password%';
+--------------------------------------+-------+
| Variable_name | Value |
+--------------------------------------+-------+
| validate_password_check_user_name | OFF |
| validate_password_dictionary_file | |
| validate_password_length | 4 |
| validate_password_mixed_case_count | 1 |
| validate_password_number_count | 1 |
| validate_password_policy | LOW |
| validate_password_special_char_count | 1 |
+--------------------------------------+-------+
7 rows in set (0.01 sec)
密碼的長度是由validate_password_length決定的，而validate_password_length的計算公式是：
validate_password_length = validate_password_number_count + validate_password_special_char_count + (2 * validate_password_mixed_case_count)
我的是已經(jīng)修改過的，初始情況下第一個的值是ON，validate_password_length是8?？梢酝ㄟ^如下命令修改：
mysql> set global validate_password_policy=0;
mysql> set global validate_password_length=1;
網(wǎng)頁名稱：CentOS7.464位安裝配置MySQL8.0
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