我试图在 CentOS 5 上安装一个 rpm 文件，但我不确定如何解决它带来的这个问题：
$ rpm --install epel-release-6-5.noarch.rpm
warning: epel-release-6-5.noarch.rpm: Header V3 RSA/SHA256 signature: NOKEY, key ID 0608b895
error: Failed dependencies:
rpmlib(FileDigests) <= 4.6.0-1 is needed by epel-release-6-5.noarch
rpmlib(PayloadIsXz) <= 5.2-1 is needed by epel-release-6-5.noarch
rpmlib(FileDigests) <= 4.6.0-1 是什么意思？rpmlib 是否已过时或 FileDigests 是否已过时？后面跟括号的东西的语法是什么？
我尝试使用 yum 以便它可以自动解析依赖项，但它无法：
$ sudo yum --nogpgcheck install epel-release-6-5.noarch.rpm
...
Running rpm_check_debug
ERROR with rpm_check_debug vs depsolve:
rpmlib(FileDigests) is needed by epel-release-6-5.noarch
rpmlib(PayloadIsXz) is needed by epel-release-6-5.noarch
Complete!
(1, [u'Please report this error in https://bugzilla.redhat.com/enter_bug.cgi?product=Red%20Hat%20Enterprise%20Linux%205&component=yum'])
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