yum clean all：不能在RHEL 7上使用yum

Question

我遇到了yum的安装问题，找不到php的镜像。因此，我执行

yum clean all

并且当我尝试再次安装时，它给了我以下错误。

不知道该怎么办。我正在使用RHEL 7。

Loaded plugins: product-id, search-disabled-repos, subscription-manager
file:///mnt/repodata/repomd.xml: [Errno 14] curl#37 - "Couldn't open file /mnt/repodata/repomd.xml"
Trying other mirror.


 One of the configured repositories failed (Red Hat Enterprise Linux 7.6),
 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=InstallMedia ...

     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 InstallMedia
        or
            subscription-manager repos --disable=InstallMedia

     5. Configure the failing repository to be skipped, if it is unavailable.
        Note that yum will try to contact the repo. 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=InstallMedia.skip_if_unavailable=true

failure: repodata/repomd.xml from InstallMedia: [Errno 256] No more mirrors to try.
file:///mnt/repodata/repomd.xml: [Errno 14] curl#37 - "Couldn't open file /mnt/repodata/repomd.xml"

我该如何再次使用它

Answer 1

似乎您已配置了一个不再存在的存储库。

回购协议将在/etc/yum.repos.d/中的文件中配置，或直接在/etc/yum.conf中的文件中配置在两个位置中查找以前位于/ mnt下的存储库

如果您禁用或删除丢失的存储库“ yum clean all”，则应重新运行。

我的假设是，您有时在安装介质上使用了存储库来安装某些软件包，并且不再安装安装介质。

如果要再次使用安装介质，则需要按照安装的确切路径重新安装它。即/ mnt

您可能还想查看yum-config-manager的手册页，如果已将其安装为列出和禁用存储库的另一种方式。