解决错误"Cannot retrieve metalink for repository: epel/x86_64"
直接使用yum安装的epel-release,在安装scsi-target-utils时报错Oneoftheconfiguredrepositoriesfailed(Unknown),......Cannotretrievemetalinkforrepository:epel/x86_64.Pleaseverifyitspathandtryagain处理方法编辑epel.repo,去除epel段中