百勝的問題：和rrno-1和rrn這−1Errno -1導入 repomd.xml 時出錯

正如文章主題所暗示的那樣，我對 yum 有一些問題。

禁用 Base repo 只會將問題轉移到下一個 repo；它發生在所有回購中。

使用 curl 時，XML 作為有效的 xml 返回。

到目前為止我做了什麼（沒有結果）：

1. 百勝清潔
2. 從 CentOS-Base.repo 中移除鏡像列表
3. 檢查 curl 返回一個有效的 xml
4. 檢查鏡像列表返回有效響應
5. 在 CentOS-Base.repo 配置中添加代理
6. 在 CentOS-Base.repo 配置中刪除了代理
7. 通過本地 rpm 重新安裝 yum 和外掛
8. 禁用外掛

看來我的選項用完了，不勝感激

錯誤

cento7:[~]: sudo yum update
Not loading "fastestmirror" plugin, as it is disabled
Not loading "langpacks" plugin, as it is disabled
Config time: 0.009
Yum version: 3.4.3
rpmdb time: 0.000
Updating Everything
Building updates object
Setting up Package Sacks
base                                                                                                       | 104 kB  00:00:00
http://mirror.centos.org/centos/7/os/x86_64/repodata/repomd.xml: [Errno -1] Error importing repomd.xml for base: Damaged repomd.xml file
Trying other mirror.

One of the configured repositories failed (CentOS-7 - Base),
and yum doesn't have enough cached data to continue. At this point the only
safe thing yum can do is fail. There are a few ways to work "fix" this:

    1. Contact the upstream for the repository and get them to fix the problem.

    2. Reconfigure the baseurl/etc. for the repository, to point to a working
       upstream. This is most often useful if you are using a newer
       distribution release than is supported by the repository (and the
       packages for the previous distribution release still work).

    3. Run the command with the repository temporarily disabled
           yum --disablerepo=base ...

    4. Disable the repository permanently, so yum won't use it by default. Yum
       will then just ignore the repository until you permanently enable it
       again or use --enablerepo for temporary usage:

           yum-config-manager --disable base
       or
           subscription-manager repos --disable=base

    5. Configure the failing repository to be skipped, if it is unavailable.
       Note
that yum will try to contact the repository when it runs most commands,
       so will have to try and fail each time (and thus. yum will be be much slower). If it is a very temporary problem though, this is often a nice compromise:

           yum-config-manager --save --setopt=base.skip_if_unavailable=true

failure: repodata/repomd.xml from base: [Errno 256] No more mirrors to try.
http://mirror.centos.org/centos/7/os/x86_64/repodata/repomd.xml: [Errno -1] Error importing repomd.xml for base: Damaged repomd.xml file

/etc/yum.conf:

[main]
cachedir=/var/cache/yum/$basearch/$releasever
keepcache=0
debuglevel=10
logfile=/var/log/yum.log
exactarch=1
obsoletes=1
gpgcheck=1
plugins=1
installonly_limit=5
bugtracker_url=http://bugs.centos.org/set_project.php?project_id=23&ref=http://bugs.centos.org/bug_report_page.php?category=yum
distroverpkg=centos-release
#proxy=http://localhost:8888

CentOS-Base.repo：

[base]
name=CentOS-$releasever - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#released updates 
[updates]
name=CentOS-$releasever - Updates
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus&infra=$infra
#baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

顯然，問題是由公司防火牆中的過濾規則引起的。

引用自：https://unix.stackexchange.com/questions/572120