CentOS yum報錯的一般解決方案

centos-yum update問題-103

在centOs上安裝軟體時。提示報錯資訊：


Could not retrieve mirrorlisthttp://mirrorlist.centos.org/?release=6&arch=x86_64&repo=os error was

14: PYCURL ERROR 6 - "Couldn't resolvehost 'mirrorlist.centos.org'"

Could not retrieve mirrorlisthttp://mirrorlist.centos.org/?release=6&arch=x86_64&repo=extras errorwas

14: PYCURL ERROR 6 - "Couldn't resolvehost 'mirrorlist.centos.org'"

Could not retrieve mirrorlisthttp://mirrorlist.centos.org/?release=6&arch=x86_64&repo=updates errorwas

14: PYCURL ERROR 6 - "Couldn't resolvehost 'mirrorlist.centos.org'"

http://mirrors.163.com/centos/6.2/os/x86_64/repodata/repomd.xml:[Errno 14] PYCURL ERROR 6 - "Couldn't resolve host 'mirrors.163.com'"

Trying other mirror.

Error: Cannot retrieve repository metadata(repomd.xml) for repository: base. Please verify its path and try again

[root@hbase01-222 ~]# service iptables stop

[root@hbase01-222 ~]# nslookup  mirrorlist.centos.org

;; connection timed out; no servers couldbe reached

到這裡發現問題了，我的網域名稱解析不了，yum的設定檔裡指向的網域名稱就識別不了了。重新設定下dns指向。

[root@hbase01-222 ~]# vim /etc/resolv.conf

# Generated by NetworkManager



nameserver 8.8.8.8

[root@hbase01-222 ~]# yum install gcc-c++