Using the yum command in the centos7 minimal installation, an error was reported: 14: curl#6-"Could not resolve host: mirrorlist.centos.org; unknown error"

table of Contents

Description

Error content

Description

Linux virtual machine software selection

Minimal installation

Network card

ens33

Error content

已加载插件：fastestmirror
Loading mirror speeds from cached hostfile
Could not retrieve mirrorlist http://mirrorlist.centos.org/?release=7&arch=x86_64&repo=os&infra=stock error was
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; 未知的错误"


 One of the configured repositories failed (未知),
 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=<repoid> ...

     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 <repoid>
        or
            subscription-manager repos --disable=<repoid>

     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=<repoid>.skip_if_unavailable=true

Cannot find a valid baseurl for repo: base/7/x86_64

Reason for error

Linux virtual machine virtual network settings error

solution

Option One

Modify the network card to dynamic IP

vi /etc/sysconfig/network-scripts/ifcfg-ens33

Restart the network card after saving and exiting

service network restart

Now you can use the yum command

After using the yum command, remember to modify the dynamic network card back to the static network card to facilitate subsequent operations

Option II

If the first option is invalid, you can use the second option to solve it completely

Reset virtual machine virtual network settings

After resetting the virtual network settings, the gateway address will change. Remember to modify the /etc/hosts mapping address and the ip and gateway address in /etc/sysconfig/network-scripts/ifcfg-ens33