Ttyjfyk

I've installed centos7 recently, but, when I am trying to install MySQL using the command:

yum install mysql-community-server

I keep getting Exiting on user cancel while I am not hitting any keyboard button. Here is the output:

install 2 Packages (+9 Dependent packages)
 Total size: 80 M Total download size: 79 M Is this ok [y/d/N]: y 
 Downloading packages: 
 No Presto metadata available for base No Presto metadata available for mysql56-community mysql-community-client-5.6.24-3.el7.x86_64.rpm |7.6 MB 00:32 ... mysql-community-server-5.6.24-3.el7.x86_64.rpm | 46MB 00:41 ... mysql-community-libs-5.6.24-3.el7.x86_64.rpm | 0 B 00:30 ... (1/9): mysql-community-cli 0% [ ] 4.7 kB/s | 159 kB 283:33 ETA 

 Exiting on user cancel

What is the problem? Why I can not install it? What is the solution?

Note: My yum has the following plugins: fastmirror, axelget, langpacks.

MariaDB is a fork of MySQL. RedHat Enterprise Linux and its derivatives have shifted to MariaDB from MySQL. So you can install mariadb-server on CentOS7 using this command yum install mariadb-server mariadb. Here is a good step by step tutorial how you can do this in p.8 Install MariaDB Database or you can use this source for that Mariadb step by step

Try cleaning yum:

yum clean all

Hope you have done this:

Create a new file /etc/yum.repos.d/mysql-community.repo with the desired version.

For 5.7, add the lines below:

[mysql57-community]
name=MySQL 5.7 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

For 5.6, add the lines below:

[mysql56-community]
name=MySQL 5.6 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.6-community/el/7/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

(use .../el/6/... for CentOS 6)

Then try the below command:

yum install mysql-community-server

try $sudo yum update

then if you correctly configure mirrors it will update packege db.

try install mysql once more using $sudo yum install mysql-community-server

if you don't have sudo installed then $su

and install sudo #yum install sudo

Do you have the relevant repo file in /etc/yum.repos.d/? It is not by default on my CentOS7 system. They've made it easy for you to install this first: Go to http://dev.mysql.com/downloads/repo/yum/ and download the file and install it "manually" with rpm. Then your yum command should work.

The problem is that yum gives you the wrong error because of one bug. To solve it and see the real error, you need to apply this fix I found here.

There is a bug in python-urlgrabber that is used by yum that results
in the wrong error being generated. It was noticed during the el7 beta
and reported but it appears not to have been fixed. The problem is
that the mirror that you are connecting to is interrupting the
connection and yum currently sees that as an error and terminates
rather than just trying another mirror.

If you don't mind editing files that are meant to be owned by the rpm
then you can fix this or at least mitigate its effects. Edit
/usr/lib/python2.7/site-packages/urlgrabber/grabber.py and find line
1510 where it currently says:

python CODE: SELECT ALL
elif errcode in (42, 55, 56):

and change that back to what it was before

python CODE: SELECT ALL
elif errcode == 42:

Try this command:

sudo bash -c 'yum clean metadata && yum upgrade'

After that install.