[CentOS] Trouble installing C7

I put a CentOS 7 live CD into a PC several years old, and ran it without trouble for several days. Then I told it to install itself to the hard drive. That took kind of a while (perhaps because the machine is behind a KVM switch with three others?), but eventually told me it had finish

[CentOS] "upstream testing"??

[Follow-ups set to gmane.linux.centos.general] My wife had been running CentOS 6.4 almost since its inception; then her PC broke down. We got a PC from System76, and Ubuntu turned out utterly unsuitable for us, as expected -- as bad for us as Gn