"Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again" と言われてコケるCentOS yum update やら何やっても "Error: Cannot retrieve metalink for repository: epel. Please verify its path and try again" と言われコケる。 URLGRABBER_DEBUG=1 yum check-update 2> debug.log を叩き、debug.log の末尾あたりを見る。 2014-10-16 13:58:10,040 attempt 1/10: https://mirrors.fedoraproject.org/metalink?repo=epel-6&arch