Временный фикс в файле /etc/yum.repos.d/percona-release.repo отключить проверку ключа:
[QUOTE][B][percona-release-noarch][/B]
name = Percona-Release YUM repository - noarch
baseurl = [URL=http://repo.percona.com/release/$releasever/RPMS/noarch]http://repo.percona.com/release/$rele...PMS/noarch[/URL]
enabled = 1
[B]gpgcheck = 0[/B]
gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-Percona [/QUOTE]
[QUOTE][B][percona-release-noarch][/B]
name = Percona-Release YUM repository - noarch
baseurl = [URL=http://repo.percona.com/release/$releasever/RPMS/noarch]http://repo.percona.com/release/$rele...PMS/noarch[/URL]
enabled = 1
[B]gpgcheck = 0[/B]
gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-Percona [/QUOTE]