Installing Percona xtrabackup

Hello,

I´m trying to install percona xtrabackup on a production environment: Red Hat 6.4. I followed the step in: https://www.percona.com/doc/percona-xtrabackup/2.2/installation/yum_repo.html

The first step was installed sucessfully. So when I executed: yum list |grep percona, returns:

http://repo.percona.com/release/6Server/RPMS/noarch/repodata/primary.xml.gz: [Errno -1] Metadata file does not match checksum
Trying other mirror.
Error: failure: repodata/primary.xml.gz from percona-release-noarch: [Errno 256] No more mirrors to try.

Could you help me?

Thanks.

I tried and it worked perfectly. How /etc/yum.repos.d/percona-release.repo look likes ?
$ cat /etc/yum.repos.d/percona-release.repo