报的什么错呢, 可以参考下https://www.jianshu.com/p/7b8c4dea6829

https://blog.csdn.net/cry1049208942/article/details/84142596

不知道你有没有卸载这个mysql57-community-release-el7-11.noarch.rpm

may be you need to try with sudo

and try to do the get packages command first

or try this

Head over here and get the url for yum repo to be deployed in your server: http://dev.mysql.com/downloads/repo/yum/
Copy the download link:

Now that you have the download link, wget get the repo rpm and check file checksum to make sure that rpm is downloaded with out errors. Make a note of checksum from first picture above (Checksum validation is optional)

Enter below codes Kindly replace the Capital letters in first with small eg: Wget is wget

wget http://dev.mysql.com/get/mysql57-community-release-el6-7.noarch.rpm
md5sum mysql57-community-release-el6-7.noarch.rpm
rpm -ivh mysql57-community-release-el6-7.noarch.rpm

yum install -y mysql-community-client mysql-community-server

service mysqld start

And find initial mysql 5.7 root password from log file

grep -i temporary /var/log/mysqld.log

ogin into MySQL 5.7 using password you got from temporary password that you searched from above

mysql -uroot -p

Only command MySQL 5.7 is going to let you run once you login with your default password is password command

SET PASSWORD FOR 'root'@'localhost' = PASSWORD('Yourpassword1!');

That’s it, you have successfully installed MySQL 5.7 server on CentOS 6/Redhat EL6/Fedora. Open some firewall rules if needed and create users to access your database.