[root@CentOS yum.repos.d]# yum makecache
已加载插件：fastestmirror, langpacks
Determining fastest mirrors
file:///iso/repodata/repomd.xml: [Errno 14] curl#37 - "Couldn't open file /iso/repodata/repomd.xml"
正在尝试其它镜像。
One of the configured repositories failed (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 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=base.skip_if_unavailable=true
failure: repodata/repomd.xml from base: [Errno 256] No more mirrors to try.
file:///iso/repodata/repomd.xml: [Errno 14] curl#37 - "Couldn't open file /iso/repodata/repomd.xml"
使用的是本地yum源
yum 源没配置好 读取不到配置文件
试试这个， redhat 7的例子：
1、挂载镜像至本地
[root@ mnt]# mkdir /linux
[root@ mnt]# mount /dev/sr0 /linux
2、配置本地yum源
cd /etc/yum.repos.d/ #进入yum配置目录
touch rhel7.repo #建立yum配置文件
vim rhel7.repo #编辑配置文件，添加以下内容
[rhel-yum]
name=rhel7 #自定义名称
baseurl=file:///linux #本地光盘挂载路径
enabled=1 #启用yum源，0为不启用，1为启用
gpgcheck=0 #检查GPG-KEY，0为不检查，1为检查
:wq! #保存退出