CentOS 8, yum 오류 Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist

CentOS 8 버전에서 yum 수행 시 발생하는 오류

[root@localhost ~]# yum install -y lsof net-tools openssh-server 
Failed to set locale, defaulting to C.UTF-8
CentOS Linux 8 - AppStream                                                        56  B/s |  38  B     00:00    
Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist

---

문제

• CentOS 8버전부터는 미러 사이트 변경 됨
• yum 유틸리티에서 바라보는 mirrorlist 값에 해당하는 주소에 패키지가 없어짐
• http://mirror.centos.org/ 에서 https://vault.centos.org/ 변경 필요

• miiror.centos.org에는 readme 파일만 존재하고 vault.centos.org 이용해야함
• readme 파일 내용을 확인해보면 8이상부터 더 이상 사용되지 않는 미러 사이트 입니다.

This directory (and version of CentOS) is deprecated.  For normal users,
you should use /8/ and not /8.4.2105/ in your path. Please see this FAQ
concerning the CentOS release scheme:

https://wiki.centos.org/FAQ/General

If you know what you are doing, and absolutely want to remain at the 8.4.2105
level, go to http://vault.centos.org/ for packages. 

Please keep in mind that 8.4.2105 no longer gets any updates, nor
any security fix's.

 

해결

• mirrorlist 변경 또는 baseurl 변경

sed -i -e "s|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g" /etc/yum.repos.d/CentOS-*
sed -i -e "s|mirrorlist=|#mirrorlist=|g" /etc/yum.repos.d/CentOS-*

[root@e44c1b786b32 yum.repos.d]# yum install -y lsof
Failed to set locale, defaulting to C.UTF-8
CentOS Linux 8 - AppStream                                                                                                                                                         50  B/s |  38  B     00:00    
Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist

[root@e44c1b786b32 yum.repos.d]# sed -i -e "s|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g" /etc/yum.repos.d/CentOS-*
[root@e44c1b786b32 yum.repos.d]# sed -i -e "s|mirrorlist=|#mirrorlist=|g" /etc/yum.repos.d/CentOS-*

[root@e44c1b786b32 yum.repos.d]# yum install -y lsof
Failed to set locale, defaulting to C.UTF-8
CentOS Linux 8 - AppStream                                                                                                                                                        5.4 MB/s | 8.4 MB     00:01    
CentOS Linux 8 - BaseOS                                                                                                                                                           5.2 MB/s | 4.6 MB     00:00    
CentOS Linux 8 - Extras                                                                                                                                                            18 kB/s |  10 kB     00:00    
Dependencies resolved.
==================================================================================================================================================================================================================
 Package                                        Architecture                                     Version                                                   Repository                                        Size
==================================================================================================================================================================================================================
Installing:
 lsof                                           x86_64                                           4.93.2-1.el8                                              baseos                                           253 k

Transaction Summary
==================================================================================================================================================================================================================
Install  1 Package

Total download size: 253 k
Installed size: 623 k
Downloading Packages:
lsof-4.93.2-1.el8.x86_64.rpm                                                                                                                                                      452 kB/s | 253 kB     00:00    
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                                                             450 kB/s | 253 kB     00:00     
warning: /var/cache/dnf/baseos-398269605bdca3dc/packages/lsof-4.93.2-1.el8.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 8483c65d: NOKEY
CentOS Linux 8 - BaseOS                                                                                                                                                           1.6 MB/s | 1.6 kB     00:00    
Importing GPG key 0x8483C65D:
 Userid     : "CentOS (CentOS Official Signing Key) <security@centos.org>"
 Fingerprint: 99DB 70FA E1D7 CE22 7FB6 4882 05B5 55B3 8483 C65D
 From       : /etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
Key imported successfully
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                                                                                                                          1/1 
  Installing       : lsof-4.93.2-1.el8.x86_64                                                                                                                                                                 1/1 
  Running scriptlet: lsof-4.93.2-1.el8.x86_64                                                                                                                                                                 1/1 
  Verifying        : lsof-4.93.2-1.el8.x86_64                                                                                                                                                                 1/1 

Installed:
  lsof-4.93.2-1.el8.x86_64                                                                                                                                                                                        

Complete!