[ Linux ] yum 명령어가 실행되지 않을 때

yum 명령어를 사용 시, 아래와 같은 오류가 뜨면서 yum 이 수행되지 않을 때.

 

Loaded plugins: fastestmirror, langpacks Determining fastest mirrors 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; 알 수 없는 오류"

One of the configured repositories failed (Unknown), 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= ...

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 or subscription-manager repos --disable=

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=.skip_if_unavailable=true Cannot find a valid baseurl for repo: base/7/x86_64

* gateway 등록

# cat /etc/sysconfig/network
# Created by anaconda
GATEWAY=192.168.0.1

* network 재시작

#service network restart

* nameserver 등록

# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 127.0.0.1
nameserver 168.126.63.1
nameserver 168.126.63.2