CentOS yum 설치시 에러 해결법

 

  

CentOS를 CD나 DVD 이미지로 설치를 한 후 yum install 명령어를 입력하면 에러가 나는 경우가 있습니다.

설치 후 yum 에러가 나는 경우는 보통 nameserver 가 지정되지 않아서 에러가 나오는데 아래와 같이 지정해주시면

yum install 이 정상적으로 작동됩니다.

에러메세지 예시

[root@localhost ~]# yum install httpd

(생략)

14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
Loading mirror speeds from cached hostfile


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. Disable the repository, 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>

4. 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

위와같이 에러가 나올텐데 /etc/resolv.conf 로 이동하셔서 아래와 같이 nameserver 를 지정해줍니다.

[root@localhost ~]# vi /etc/resolv.conf

# Generated by NetworkManager
search mydomain
nameserver 8.8.8.8 // 이 부분 추가