yum install报错处理

最新推荐文章于 2025-03-28 15:21:10 发布

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本文详细介绍了在Linux系统中遇到的网络连接与软件源配置问题的解决方案，包括DNS配置、软件源更新及SSL连接问题的处理。通过修改resolv.conf文件设置DNS服务器，调整/etc/y.repo.d/目录下的repo文件来解决软件源问题，以及更新epel.repo文件以修复SSL连接错误。

0、首先ping www.baidu.com看看有没有网

1、Cannot resolve host address “....”

多半是dns配置问题，这里需要修改/etc/resolv.conf。

加入nameserver 8.8.8.8，注意要加在第一行，非第一行则没作用（不清楚为什么）

2、no more mirror found & 3、cannot retrieve repository metadata（repomd.xml）for repository

这些问题都是因为/etc/y.repo.d/里的*.repo文件问题。可能是格式问题或者源网站失效或者版本不匹配等。

可以利用下语句下载新的repo，注意完全复制这个指令不一定有用，要在mirror.163.com上找最新的，我在网上没有找到可用的，所以从其他node复制过来的repo。

wget http://mirrors.163.com/.help/CentOS6-Base-163.repo

下载rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm之后

rpm -ivh rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm

rpm -e rpmforge-release --nodeps

4、makeing ssl connection

/etc/y.repo.d/epel.repo文件问题，同样在上述对应的网站下载最新epel.repo

x、yum makecache 检查是否有效

附上我的/etc/y.repo.d/CentOS-Base.repo 。linux版本为redhat 6.2

# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#

[base]
name=CentOS-$releasever - Base - 163.com
baseurl=http://mirrors.163.com/centos/6/os/x86_64/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#released updates 
[updates]
name=CentOS-$releasever - Updates - 163.com
baseurl=http://mirrors.163.com/centos/6/os/x86_64/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - 163.com
baseurl=http://mirrors.163.com/centos/6/os/x86_64/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - 163.com
baseurl=http://mirrors.163.com/centos/6/os/x86_64/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib - 163.com
baseurl=http://mirrors.163.com/centos/6/os/x86_64/
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6

/etc/y.repo.d/epel.repo

[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
baseurl=http://mirrors.aliyun.com/epel/7/$basearch
failovermethod=priority
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
 
[epel-debuginfo]
name=Extra Packages for Enterprise Linux 7 - $basearch - Debug
baseurl=http://mirrors.aliyun.com/epel/7/$basearch/debug
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=0
 
[epel-source]
name=Extra Packages for Enterprise Linux 7 - $basearch - Source
baseurl=http://mirrors.aliyun.com/epel/7/SRPMS
failovermethod=priority
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=0