CentOS7版本安装Mysql8.0.20版本数据库的详细教程-巨人网络通讯

CentOS7版本安装Mysql8.0.20版本数据库的详细教程

相关阅读：

MySQL8.0.20安装教程及其安装问题详细教程 https://www.jb51.net/article/186202.htm

mysql8.0.20下载安装及遇到的问题(图文详解) https://www.jb51.net/article/186208.htm

CentOS7安装Mysql8.0.20步骤：

https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-20.html

官网下载有时速度比较慢，直接点击链接也可以下载：mysql 8.0.20

官网下载8.0.20Mysql包（bundle版本）

1.创建mysql文件夹：

[root@localhost ~]# mkdir /usr/local/mysql
[root@localhost ~]# cd /usr/local/mysql/

将下载的mysql包放在创建的MySQL文件夹内：

[root@localhost mysql]# ll
总用量 815000
-rw-r--r--. 1 root root 834560000 5月 13 10:44 mysql-8.0.20-1.el7.x86_64.rpm-bundle.tar

mysql的安装版MD5码查看是否和官网上的相对应：

[root@localhost mysql]# md5sum mysql-8.0.20-1.el7.x86_64.rpm-bundle.tar 
c8d062c1f74d9aab7dbdd5300b202b6e mysql-8.0.20-1.el7.x86_64.rpm-bundle.tar

将mysql的包解压得到几个内安装包：

[root@localhost mysql]# tar -xvf mysql-8.0.20-1.el7.x86_64.rpm-bundle.tar 
mysql-community-libs-8.0.20-1.el7.x86_64.rpm
mysql-community-embedded-compat-8.0.20-1.el7.x86_64.rpm
mysql-community-test-8.0.20-1.el7.x86_64.rpm
mysql-community-common-8.0.20-1.el7.x86_64.rpm
mysql-community-devel-8.0.20-1.el7.x86_64.rpm
mysql-community-client-8.0.20-1.el7.x86_64.rpm
mysql-community-libs-compat-8.0.20-1.el7.x86_64.rpm
mysql-community-server-8.0.20-1.el7.x86_64.rpm
[root@localhost mysql]# ll
总用量 1630004
-rw-r--r--. 1 root root 834560000 5月 13 10:44 mysql-8.0.20-1.el7.x86_64.rpm-bundle.tar
-rw-r--r--. 1 7155 31415 48822048 3月 27 20:14 mysql-community-client-8.0.20-1.el7.x86_64.rpm
-rw-r--r--. 1 7155 31415 623508 3月 27 20:14 mysql-community-common-8.0.20-1.el7.x86_64.rpm
-rw-r--r--. 1 7155 31415 8129988 3月 27 20:14 mysql-community-devel-8.0.20-1.el7.x86_64.rpm
-rw-r--r--. 1 7155 31415 23599996 3月 27 20:14 mysql-community-embedded-compat-8.0.20-1.el7.x86_64.rpm
-rw-r--r--. 1 7155 31415 4667884 3月 27 20:14 mysql-community-libs-8.0.20-1.el7.x86_64.rpm
-rw-r--r--. 1 7155 31415 1277128 3月 27 20:14 mysql-community-libs-compat-8.0.20-1.el7.x86_64.rpm
-rw-r--r--. 1 7155 31415 512057468 3月 27 20:15 mysql-community-server-8.0.20-1.el7.x86_64.rpm
-rw-r--r--. 1 7155 31415 235369940 3月 27 20:16 mysql-community-test-8.0.20-1.el7.x86_64.rpm

依次安装顺序时common，libs，libs-compat，client，server：

警告：mysql-community-common-8.0.20-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID ********: NOKEY
准备中...  ################################# [100%]
正在升级/安装...
 1:mysql-community-common-8.0.20-1.e################################# [100%]
警告：mysql-community-libs-8.0.20-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID ********: NOKEY
准备中...  ################################# [100%]
正在升级/安装...
 1:mysql-community-libs-8.0.20-1.el7################################# [100%]
警告：mysql-community-libs-compat-8.0.20-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID ********: NOKEY
准备中...  ################################# [100%]
正在升级/安装...
 1:mysql-community-libs-compat-8.0.2################################# [100%]
警告：mysql-community-client-8.0.20-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID ********: NOKEY
准备中...  ################################# [100%]
正在升级/安装...
 1:mysql-community-client-8.0.20-1.e################################# [100%]
警告：mysql-community-server-8.0.20-1.el7.x86_64.rpm: 头V3 DSA/SHA1 Signature, 密钥 ID ********: NOKEY
准备中...  ################################# [100%]
正在升级/安装...
 1:mysql-community-server-8.0.20-1.e################################# [100%]

编辑一下/etc/my.cnf文件：
在最下面增加一行：

lower_case_table_names=1

initialize初始化：

[root@localhost mysql]# mysqld --initialize
[root@localhost mysql]#

更改一下权限：

[root@localhost mysql]# chown -R mysql:mysql /var/lib/mysql
[root@localhost mysql]# ll /var/lib/
总用量 8
drwxr-xr-x. 4 root root 32 5月 13 10:07 AccountsService
drwxr-xr-x. 2 root root 6 8月 3 2017 alsa
drwxr-xr-x. 2 root root 274 5月 13 10:14 alternatives
drwx------. 3 root root 18 5月 13 10:17 authconfig
drwxr-xr-x. 2 root root 6 8月 3 2017 bluetooth
drwxr-xr-x. 2 chrony chrony 6 8月 4 2017 chrony
drwxr-xr-x. 3 root root 17 5月 13 10:06 color
drwxr-xr-x. 4 colord colord 67 5月 13 10:23 colord
drwxr-xr-x. 2 root root 6 11月 7 2016 dbus
drwxr-xr-x. 2 root root 6 8月 4 2017 dhclient
drwxr-xr-x. 2 root root 6 8月 3 2017 dnsmasq
drwxr-xr-x. 3 root root 34 5月 13 10:24 flatpak
drwxr-xr-x. 2 root root 6 6月 24 2014 fprint
drwxr-xr-x. 2 root root 6 11月 5 2016 games
drwxrwx--T. 5 gdm gdm 70 5月 13 10:23 gdm
drwxr-xr-x. 2 geoclue geoclue 6 8月 2 2017 geoclue
drwxr-xr-x. 4 root root 55 5月 13 02:22 gssproxy
drwxr-xr-x. 2 root root 6 8月 2 2017 hyperv
drwxr-xr-x. 2 root root 6 8月 5 2017 initramfs
drwxr-xr-x. 8 root root 90 5月 13 10:07 iscsi
drwxr-xr-x. 8 root root 93 5月 13 10:08 libvirt
drwxr-xr-x. 2 root root 6 11月 6 2016 lldpad
drwxr-xr-x. 2 root root 6 8月 2 2017 logrotate
drwx------. 2 root root 6 5月 13 10:06 machines
drwxr-xr-x. 2 root root 37 5月 13 02:22 misc
drwxr-x---. 2 root slocate 6 11月 5 2016 mlocate
drwxr-x--x. 6 mysql mysql 4096 5月 13 11:05 mysql

启动mysql服务看一下服务状态，看Active这一行的状态：

[root@localhost mysql]# systemctl start mysqld.service 
[root@localhost mysql]# systemctl status mysqld.service 
● mysqld.service - MySQL Server
 Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
 Active: active (running) since 三 2020-05-13 11:09:35 CST; 8s ago
 Docs: man:mysqld(8)
 http://dev.mysql.com/doc/refman/en/using-systemd.html
 Process: 16795 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
 Main PID: 16829 (mysqld)
 Status: "Server is operational"
 CGroup: /system.slice/mysqld.service
 └─16829 /usr/sbin/mysqld

5月 13 11:09:24 localhost.localdomain systemd[1]: Starting MySQL Server...
5月 13 11:09:35 localhost.localdomain systemd[1]: Started MySQL Server.
[root@localhost mysql]#

查看数据库初始的密码：

[root@localhost mysql]# cat /var/log/mysqld.log | grep password
2020-05-13T03:05:16.041238Z 6 [Note] [MY-010454] 
[Server] A temporary password is generated for root@localhost: n_t#tk.Z?7)f

使用初始密码登陆数据库：后更改密码：

[root@localhost mysql]# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.20

Copyright (c) 2000, 2020, 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> ALTER user 'root'@'localhost' identified with mysql_native_password by '123456';
Query OK, 0 rows affected (0.04 sec)

mysql> exit
Bye
[root@localhost mysql]# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.0.20 MySQL Community Server - GPL

Copyright (c) 2000, 2020, 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> SELECT VERSION;
ERROR 1054 (42S22): Unknown column 'VERSION' in 'field list'
mysql> SELECT VERSION();
+-----------+
| VERSION() |
+-----------+
| 8.0.20 |
+-----------+
1 row in set (0.00 sec)

mysql>

到此可以正常登陆数据库了，可以自行查找开启远程方式。

总结

到此这篇关于CentOS7版本安装Mysql8.0.20版本数据库的详细教程的文章就介绍到这了,更多相关CentOS7安装Mysql8.0数据库内容请搜索脚本之家以前的文章或继续浏览下面的相关文章希望大家以后多多支持脚本之家！

您可能感兴趣的文章: