centos7安装mysql5.7的踩坑记录

今天使用centos7进行mysql5.7的安装,出现挫折,记录如下:

下载安装mysql

下载rpm安装包


 	wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
 	--2022-01-22 03:01:53-- http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
 	Resolving dev.mysql.com (dev.mysql.com)... 137.254.60.11
 	Connecting to dev.mysql.com (dev.mysql.com)|137.254.60.11|:80... connected.
 	HTTP request sent, awaiting response... 301 Moved Permanently
 	Location: https://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm [following]
 	--2022-01-22 03:01:54-- https://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
 	Connecting to dev.mysql.com (dev.mysql.com)|137.254.60.11|:443... connected.
 	HTTP request sent, awaiting response... 302 Found
 	Location: https://repo.mysql.com//mysql57-community-release-el7-8.noarch.rpm [following]
 	--2022-01-22 03:01:55-- https://repo.mysql.com//mysql57-community-release-el7-8.noarch.rpm
 	Resolving repo.mysql.com (repo.mysql.com)... 23.36.253.13
 	Connecting to repo.mysql.com (repo.mysql.com)|23.36.253.13|:443... connected.
 	HTTP request sent, awaiting response... 200 OK
 	Length: 9116 (8.9K) [application/x-redhat-package-manager]
 	Saving to: ‘mysql57-community-release-el7-8.noarch.rpm'
 	
 	100%[=========================================================================================================================================================================>] 9,116 --.-K/s in 0s
 	
 	2022-01-22 03:01:55 (249 MB/s) - ‘mysql57-community-release-el7-8.noarch.rpm' saved [9116/9116]
 	 

安装


 	yum localinstall mysql57-community-release-el7-8.noarch.rpm

 


 	(py3) [root@localhost opt]# yum localinstall mysql57-community-release-el7-8.noarch.rpm
 	Loaded plugins: fastestmirror, langpacks
 	Examining mysql57-community-release-el7-8.noarch.rpm: mysql57-community-release-el7-8.noarch
 	Marking mysql57-community-release-el7-8.noarch.rpm to be installed
 	Resolving Dependencies
 	--> Running transaction check
 	---> Package mysql57-community-release.noarch 0:el7-8 will be installed
 	--> Finished Dependency Resolution
 	
 	Dependencies Resolved
 	
 	===================================================================================================================================================================================================================
 	     Package Arch Version Repository Size
 	===================================================================================================================================================================================================================
 	Installing:
 	     mysql57-community-release noarch el7-8 /mysql57-community-release-el7-8.noarch 8.2 k
 	
 	Transaction Summary
 	===================================================================================================================================================================================================================
 	Install 1 Package
 	
 	Total size: 8.2 k
 	Installed size: 8.2 k
 	Is this ok [y/d/N]: y
 	Downloading packages:
 	Running transaction check
 	Running transaction test
 	Transaction test succeeded
 	Running transaction
 	     Installing : mysql57-community-release-el7-8.noarch 1/1
 	     Verifying : mysql57-community-release-el7-8.noarch 1/1
 	
 	Installed:
 	     mysql57-community-release.noarch 0:el7-8
 	
 	Complete!

查看安装情况


 	(py3) [root@localhost opt]# yum repolist enabled | grep "mysql.*-community.*"
 	mysql-connectors-community/x86_64 MySQL Connectors Community 167
 	mysql-tools-community/x86_64 MySQL Tools Community 82
 	mysql57-community/x86_64 MySQL 5.7 Community Server 564

安装server


 	yum -y install mysql-community-server

 


 	(py3) [root@localhost opt]# yum -y install mysql-community-server
 	Loaded plugins: fastestmirror, langpacks
 	Loading mirror speeds from cached hostfile
 	     * base: mirrors.tuna.tsinghua.edu.cn
 	     * extras: mirrors.tuna.tsinghua.edu.cn
 	     * updates: mirrors.tuna.tsinghua.edu.cn
 	Resolving Dependencies
 	--> Running transaction check
 	---> Package mysql-community-server.x86_64 0:5.7.37-1.el7 will be installed
 	--> Processing Dependency: mysql-community-common(x86-64) = 5.7.37-1.el7 for package: mysql-community-server-5.7.37-1.el7.x86_64
 	--> Processing Dependency: mysql-community-client(x86-64) >= 5.7.9 for package: mysql-community-server-5.7.37-1.el7.x86_64
 	--> Running transaction check
 	---> Package mysql-community-client.x86_64 0:5.7.37-1.el7 will be installed
 	--> Processing Dependency: mysql-community-libs(x86-64) >= 5.7.9 for package: mysql-community-client-5.7.37-1.el7.x86_64
 	---> Package mysql-community-common.x86_64 0:5.7.37-1.el7 will be installed
 	--> Running transaction check
 	---> Package mysql-community-libs.x86_64 0:5.7.37-1.el7 will be installed
 	--> Finished Dependency Resolution
 	
 	Dependencies Resolved
 	
 	===================================================================================================================================================================================================================
 	     Package Arch Version Repository Size
 	===================================================================================================================================================================================================================
 	Installing:
 	     mysql-community-server x86_64 5.7.37-1.el7 mysql57-community 174 M
 	Installing for dependencies:
 	     mysql-community-client x86_64 5.7.37-1.el7 mysql57-community 25 M
 	     mysql-community-common x86_64 5.7.37-1.el7 mysql57-community 311 k
 	     mysql-community-libs x86_64 5.7.37-1.el7 mysql57-community 2.4 M
 	
 	Transaction Summary
 	===================================================================================================================================================================================================================
 	Install 1 Package (+3 Dependent packages)
 	
 	Total download size: 202 M
 	Installed size: 878 M
 	Downloading packages:
 	warning: /var/cache/yum/x86_64/7/mysql57-community/packages/mysql-community-common-5.7.37-1.el7.x86_64.rpm: Header V4 RSA/SHA256 Signature, key ID 3a79bd29: NOKEY ] 0.0 B/s | 767 kB --:--:-- ETA
 	Public key for mysql-community-common-5.7.37-1.el7.x86_64.rpm is not installed
 	(1/4): mysql-community-common-5.7.37-1.el7.x86_64.rpm | 311 kB 00:00:00
 	(2/4): mysql-community-libs-5.7.37-1.el7.x86_64.rpm | 2.4 MB 00:00:04
 	(3/4): mysql-community-client-5.7.37-1.el7.x86_64.rpm | 25 MB 00:01:01
 	(4/4): mysql-community-server-5.7.37-1.el7.x86_64.rpm | 174 MB 00:03:40
 	-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 	Total 917 kB/s | 202 MB 00:03:45
 	Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
 	Importing GPG key 0x5072E1F5:
 	     Userid : "MySQL Release Engineering <mysql-build@oss.oracle.com>"
 	     Fingerprint: a4a9 4068 76fc bd3c 4567 70c8 8c71 8d3b 5072 e1f5
 	     Package : mysql57-community-release-el7-8.noarch (@/mysql57-community-release-el7-8.noarch)
 	     From : /etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
 	
 	
 	Public key for mysql-community-server-5.7.37-1.el7.x86_64.rpm is not installed
 	
 	
 	     Failing package is: mysql-community-server-5.7.37-1.el7.x86_64
 	     GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
 	 

这里发现这个问题:


 	Public key for mysql-community-server-5.7.37-1.el7.x86_64.rpm is not installed
 	
 	     Failing package is: mysql-community-server-5.7.37-1.el7.x86_64
 	     GPG Keys are configured as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

备注:

由于MySQL在CentOS7中收费了,所以已经不支持MySQL了,取而代之在CentOS7内部集成了mariadb,而安装MySQL的话会和MariaDB的文件冲突。

如果安装的话,需要卸载MariaDB,另外也注意安装正确的安装包,以及安装顺序,建议参考我的另外一篇文章。

总结

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