我试图在CentOS7上安装mysql 5.7。但是我做不到。 首先，我尝试执行以下命令
[root@localhost myinstall]# rpm -qa | grep ^mysql-server
[root@localhost myinstall]# yum install mysql-server
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirror.kakao.com
* extras: mirror.kakao.com
* updates: mirror.kakao.com
No package mysql-server available.
Error: Nothing to do
第二，我尝试了以下操作，但是也失败了。
[root@localhost iwantoinst]# yum -y install http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
Loaded plugins: fastestmirror, langpacks
mysql-community-release-el7-5.noarch.rpm | 6.0 kB 00:00:00
Examining /var/tmp/yum-root-8bl5FQ/mysql-community-release-el7-5.noarch.rpm: mysql-community-release-el7-5.noarch
Marking /var/tmp/yum-root-8bl5FQ/mysql-community-release-el7-5.noarch.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-release.noarch 0:el7-5 will be installed
--> Processing Conflict: mysql57-community-release-fc22-7.noarch conflicts mysql-community-release
Loading mirror speeds from cached hostfile
* base: mirror.kakao.com
* extras: mirror.kakao.com
* updates: mirror.kakao.com
No package matched to upgrade: mysql-community-release
--> Finished Dependency Resolution
Error: mysql57-community-release conflicts with mysql-community-release-el7-5.noarch
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
[root@localhost iwantoinst]# yum -y install mysql-community-server
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirror.kakao.com
* extras: mirror.kakao.com
* updates: mirror.kakao.com
No package mysql-community-server available.
Error: Nothing to do
我该怎么做？请！