【mysql】 手把手教你安装mysql-8.0.36数据库
缘过了个周末，舒舒服服，把家里捣鼓了下，自己编了一个网格照片墙，把来做客的家具都安排好位置，本日，继承上班啦。
情况
开始之前，老生常谈，起首看看我服务器的信息：
# uname -a
Linux VM-16-11-centos 3.10.0-1160.99.1.el7.x86_64 #1 SMP Wed Sep 13 14:19:20 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
下载
虽然每次写MySQL教程都会写下载链接，这次依然附带上。提供两种方式下载，
** 下载地址：**直接下载mysql数据库tar格式，官网下载地址
** 下载页面：**在页面找自己想要的版本举行安装，官网下载页面
安装
[*]离线服务器下载后放到服务器上，联网服务器直接使用下令下载：
wget https://dev.mysql.com/get/mysql-8.0.36-1.el7.x86_64.rpm-bundle.tar
[*]对压缩包举行解压
# tar -xvf mysql-8.0.36-1.el7.x86_64.rpm-bundle.tar
mysql-community-client-8.0.36-1.el7.x86_64.rpm
mysql-community-client-plugins-8.0.36-1.el7.x86_64.rpm
mysql-community-common-8.0.36-1.el7.x86_64.rpm
mysql-community-debuginfo-8.0.36-1.el7.x86_64.rpm
mysql-community-devel-8.0.36-1.el7.x86_64.rpm
mysql-community-embedded-compat-8.0.36-1.el7.x86_64.rpm
mysql-community-icu-data-files-8.0.36-1.el7.x86_64.rpm
mysql-community-libs-8.0.36-1.el7.x86_64.rpm
mysql-community-libs-compat-8.0.36-1.el7.x86_64.rpm
mysql-community-server-8.0.36-1.el7.x86_64.rpm
mysql-community-server-debug-8.0.36-1.el7.x86_64.rpm
mysql-community-test-8.0.36-1.el7.x86_64.rpm
# ll
total 2012556
-rw-r--r-- 1 root root1030420480 Dec 14 14:56 mysql-8.0.36-1.el7.x86_64.rpm-bundle.tar
-rw-r--r-- 1 7155 31415 16767208 Dec 14 14:42 mysql-community-client-8.0.36-1.el7.x86_64.rpm
-rw-r--r-- 1 7155 31415 3621168 Dec 14 14:42 mysql-community-client-plugins-8.0.36-1.el7.x86_64.rpm
-rw-r--r-- 1 7155 31415 681264 Dec 14 14:42 mysql-community-common-8.0.36-1.el7.x86_64.rpm
-rw-r--r-- 1 7155 31415528659552 Dec 14 14:43 mysql-community-debuginfo-8.0.36-1.el7.x86_64.rpm
-rw-r--r-- 1 7155 31415 1948160 Dec 14 14:44 mysql-community-devel-8.0.36-1.el7.x86_64.rpm
-rw-r--r-- 1 7155 31415 4217212 Dec 14 14:44 mysql-community-embedded-compat-8.0.36-1.el7.x86_64.rpm
-rw-r--r-- 1 7155 31415 2344468 Dec 14 14:44 mysql-community-icu-data-files-8.0.36-1.el7.x86_64.rpm
-rw-r--r-- 1 7155 31415 1563732 Dec 14 14:44 mysql-community-libs-8.0.36-1.el7.x86_64.rpm
-rw-r--r-- 1 7155 31415 685408 Dec 14 14:44 mysql-community-libs-compat-8.0.36-1.el7.x86_64.rpm
-rw-r--r-- 1 7155 31415 67429872 Dec 14 14:44 mysql-community-server-8.0.36-1.el7.x86_64.rpm
-rw-r--r-- 1 7155 31415 25664528 Dec 14 14:45 mysql-community-server-debug-8.0.36-1.el7.x86_64.rpm
-rw-r--r-- 1 7155 31415376818184 Dec 14 14:47 mysql-community-test-8.0.36-1.el7.x86_64.rpm
截图如下：
https://i-blog.csdnimg.cn/blog_migrate/ec6e8216c1f7f99910979c7340fd1d39.png
3. 安装解压出来的rpm安装包。如下：
# rpm-ivh*.rpm --nodeps --force
warning: mysql-community-client-8.0.36-1.el7.x86_64.rpm: Header V4 RSA/SHA256 Signature, key ID a8d3785c: NOKEY
Preparing... #################################
Updating / installing...
1:mysql-community-common-8.0.36-1.e#################################
2:mysql-community-client-plugins-8.################################# [ 17%]
3:mysql-community-libs-8.0.36-1.el7################################# [ 25%]
4:mysql-community-client-8.0.36-1.e################################# [ 33%]
5:mysql-community-icu-data-files-8.################################# [ 42%]
6:mysql-community-server-8.0.36-1.e################################# [ 50%]
7:mysql-community-server-debug-8.0.################################# [ 58%]
8:mysql-community-test-8.0.36-1.el7################################# [ 67%]
9:mysql-community-devel-8.0.36-1.el################################# [ 75%]
10:mysql-community-libs-compat-8.0.3################################# [ 83%]
11:mysql-community-embedded-compat-8################################# [ 92%]
12:mysql-community-debuginfo-8.0.36-#################################
#
截图如下： https://i-blog.csdnimg.cn/blog_migrate/b1af5563fd109b95b53c115633b446a9.png
4. 使用下令查看安装是否乐成，如下：
# systemctl status mysqld
● mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: inactive (dead)
Docs: man:mysqld(8)
http://dev.mysql.com/doc/refman/en/using-systemd.html
#
截图如下：
https://i-blog.csdnimg.cn/blog_migrate/84acb8196a179e9fa2070b76e180c2b8.png
5. 启动mysql服务，如下：
# systemctl status mysqld
● mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: active (running) since Mon 2024-03-04 16:59:31 CST; 6s ago
Docs: man:mysqld(8)
http://dev.mysql.com/doc/refman/en/using-systemd.html
Process: 21984 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
Main PID: 22106 (mysqld)
Status: "Server is operational"
Tasks: 38
Memory: 513.4M
CGroup: /system.slice/mysqld.service
└─22106 /usr/sbin/mysqld
Mar 04 16:59:18 VM-16-11-centos systemd: Starting MySQL Server...
Mar 04 16:59:31 VM-16-11-centos systemd: Started MySQL Server.
#
截图如下：
https://i-blog.csdnimg.cn/blog_migrate/7fb92085ea8cdfe9131d05bc012af13b.png
6. 查看数据库密码，和往常一样依然是随机密码，有日志可知本次密码为k*;2bsNU)&Oo，如下：
2024-03-04T08:59:22.920568Z 0 /usr/sbin/mysqld (mysqld 8.0.36) initializing of server in progress as process 22031
2024-03-04T08:59:22.949805Z 1 InnoDB initialization has started.
2024-03-04T08:59:23.861796Z 1 InnoDB initialization has ended.
2024-03-04T08:59:26.000382Z 6 A temporary password is generated for root@localhost: k*;2bsNU)&Oo
2024-03-04T08:59:31.115096Z 0 /usr/sbin/mysqld (mysqld 8.0.36) starting as process 22106
2024-03-04T08:59:31.131318Z 1 InnoDB initialization has started.
2024-03-04T08:59:31.335613Z 1 InnoDB initialization has ended.
2024-03-04T08:59:31.639123Z 0 CA certificate ca.pem is self signed.
2024-03-04T08:59:31.639170Z 0 Channel mysql_main configured to support TLS. Encrypted connections are now supported for this channel.
2024-03-04T08:59:31.672087Z 0 /usr/sbin/mysqld: ready for connections. Version: '8.0.36'socket: '/var/lib/mysql/mysql.sock'port: 3306MySQL Community Server - GPL.
2024-03-04T08:59:31.672090Z 0 X Plugin ready for connections. Bind-address: '::' port: 33060, socket: /var/run/mysqld/mysqlx.sock
截图如下：
https://i-blog.csdnimg.cn/blog_migrate/dd1c1b1404d9d54d7f84241f4de82aff.png
7.测试数据库链接，下令如下：
# mysql -u root -p
Enter password:
Welcome to the MySQL monitor.Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.36
Copyright (c) 2000, 2024, Oracle and/or its affiliates.
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>
截图如下：
https://i-blog.csdnimg.cn/blog_migrate/38c06253bca4ccd6be705f6d647e51a9.png
[*]基于以上，mysql安装完成！烨！✌
可以毗连以后，记得修改密码，下令：
ALTER USER USER() IDENTIFIED BY 'Root@123';
截图如下：
https://i-blog.csdnimg.cn/blog_migrate/daf700fb80ca0085446a8db77ddb7dfd.png
如果有修改配置文件的需求，使用以下下令修改配置文件，修改后重启生效：
# vim /etc/my.cnf
截图如下：
https://i-blog.csdnimg.cn/blog_migrate/4eba1fa3efb1c84beeb34dcfb1f05d77.png
问题集锦
[*]修改密码时报错：ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
解决方案：
意思是密码强度不敷，试试大小写数字加符号。
或者执行以下下令后重试：
#查看密码配置
show variables like 'validate_password%';
#设置密码强度
SET GLOBAL validate_password.policy=LOW;
SET GLOBAL validate_password.length=0;
SET GLOBAL validate_password.mixed_case_count=0;
SET GLOBAL validate_password.number_count=0;
SET GLOBAL validate_password.special_char_count=0;
FLUSH PRIVILEGES;
ALTER USER USER() IDENTIFIED BY 'iceter';
修改乐成，注意：不要修改成关键字，比如：root，依然会报错。
[*]安装时间报错：error: unpacking of archive failed: cpio: Bad magic
解决方案：
查看mysql版本与Linux体系版本是否一致。重新下载版本一致的举行安装即可。
蜚语：自己捣鼓自己的房子，就是有一种莫名的成绩感，哈哈哈，想朔朔的第n+1天，想媳妇的每一天~~~
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