Edita Centos_Base.repo
[base]
name=CentOS-$releasever - Base
#mirrorlist=http://vault.centos.org/?release=$releasever&arch=$basearch&repo=os
baseurl=http://vault.centos.org/5.11/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
exclude=redhat-logos php53*
#released updates
enabled=1
[updates]
name=CentOS-$releasever - Updates
#mirrorlist=http://vault.centos.org/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://vault.centos.org/5.11/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
exclude=redhat-logos php53*
#additional packages that may be useful
enabled=1
[extras]
name=CentOS-$releasever - Extras
#mirrorlist=http://vault.centos.org/?release=$releasever&arch=$basearch&repo=extras
baseurl=http://vault.centos.org/5.11/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
exclude=redhat-logos php53*