rpm -e --justdb --nodeps systemdI have used this when `yum check` gave errors like:
glibc-devel-2.12-1.107.el6_4.5.x86_64 has missing requires of glibc-headers = ('...', '...', '...');I did a fake remove of glibc-headers then installed it with
yum install glibc-headersAnd the correct version was installed.