无法在 AWS 中通过 yum 安装软件包，[Errno -1] repomd.xml 与 epel 的元链接不匹配
Unable to install packages via yum in AWS, [Errno -1] repomd.xml does not match metalink for epel
虽然通过 yum 运行 安装 rpms 到 AWS EC2 实例中出现以下错误。
sudo yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
epel/x86_64/metalink | 16 kB 00:00:00
* base: d36uatko69830t.cloudfront.net
* epel: dl.fedoraproject.org
* extras: d36uatko69830t.cloudfront.net
* updates: d36uatko69830t.cloudfront.net
base | 3.6 kB 00:00:00
epel | 5.4 kB 00:00:00
http://mirror.es.its.nyu.edu/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://dl.fedoraproject.org/pub/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://d2lzkl7pfhq30w.cloudfront.net/pub/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://mirror.umd.edu/fedora/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://mirror.vcu.edu/pub/gnu%2Blinux/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.math.princeton.edu/pub/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://ewr.edge.kernel.org/fedora-buffet/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://iad.mirror.rackspace.com/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://epel.mirror.constant.com/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://fedora-epel.mirrors.tds.net/fedora-epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://download-cc-rdu01.fedoraproject.org/pub/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.siena.edu/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://fedora.mirrors.pair.com/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirrors.mit.edu/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.metrocast.net/fedora/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://mirror.atl.genesisadaptive.com/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://download-ib01.fedoraproject.org/pub/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://reflector.westga.edu/repos/Fedora-EPEL/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for
epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://mirror.csis.ysu.edu/fedora/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.nodesdirect.com/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.pit.teraswitch.com/fedora/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml
does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://mirror.us-midwest-1.nexcess.net/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.grid.uchicago.edu/pub/linux/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel
无法安装软件包 rpms，它尝试了多个镜像，但最终失败了。
这个问题是从昨天开始发生的，之前它工作正常，不确定 repomd.xml 文件中发生了什么变化。还有其他人面临同样的问题吗？
这似乎是一个更广泛的已知问题，与 repomd.xml 文件中的 timestamp 属性 相关，不同于 revision 属性。
目前的建议如下：
- 打开
/etc/yum.repos.d/epel.repo 文件。
- 注释掉
metalink 属性.
- 取消注释
baseurl 属性。
完成后 运行 yum clean metadata 或 yum clean all.
这应该只在短期内完成，一旦问题得到解决就会恢复。
CentOS 软件包存储库中似乎存在问题。
作为解决方法，您可以手动下载 epel-release 软件包并使用以下命令安装它；
wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
sudo yum install epel-release-latest-7.noarch.rpm
虽然通过 yum 运行 安装 rpms 到 AWS EC2 实例中出现以下错误。
sudo yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
epel/x86_64/metalink | 16 kB 00:00:00
* base: d36uatko69830t.cloudfront.net
* epel: dl.fedoraproject.org
* extras: d36uatko69830t.cloudfront.net
* updates: d36uatko69830t.cloudfront.net
base | 3.6 kB 00:00:00
epel | 5.4 kB 00:00:00
http://mirror.es.its.nyu.edu/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://dl.fedoraproject.org/pub/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://d2lzkl7pfhq30w.cloudfront.net/pub/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://mirror.umd.edu/fedora/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://mirror.vcu.edu/pub/gnu%2Blinux/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.math.princeton.edu/pub/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://ewr.edge.kernel.org/fedora-buffet/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://iad.mirror.rackspace.com/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://epel.mirror.constant.com/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://fedora-epel.mirrors.tds.net/fedora-epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://download-cc-rdu01.fedoraproject.org/pub/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.siena.edu/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://fedora.mirrors.pair.com/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirrors.mit.edu/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.metrocast.net/fedora/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://mirror.atl.genesisadaptive.com/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://download-ib01.fedoraproject.org/pub/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://reflector.westga.edu/repos/Fedora-EPEL/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for
epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://mirror.csis.ysu.edu/fedora/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.nodesdirect.com/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.pit.teraswitch.com/fedora/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml
does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
https://mirror.us-midwest-1.nexcess.net/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel | 5.4 kB 00:00:00
http://mirror.grid.uchicago.edu/pub/linux/epel/7/x86_64/repodata/repomd.xml: [Errno -1] repomd.xml does not match metalink for epel
Trying other mirror.
epel
无法安装软件包 rpms，它尝试了多个镜像，但最终失败了。 这个问题是从昨天开始发生的，之前它工作正常，不确定 repomd.xml 文件中发生了什么变化。还有其他人面临同样的问题吗？
这似乎是一个更广泛的已知问题，与 repomd.xml 文件中的 timestamp 属性 相关，不同于 revision 属性。
目前的建议如下：
- 打开
/etc/yum.repos.d/epel.repo文件。 - 注释掉
metalink属性. - 取消注释
baseurl属性。
完成后 运行 yum clean metadata 或 yum clean all.
这应该只在短期内完成，一旦问题得到解决就会恢复。
CentOS 软件包存储库中似乎存在问题。
作为解决方法，您可以手动下载 epel-release 软件包并使用以下命令安装它；
wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
sudo yum install epel-release-latest-7.noarch.rpm