错误:无法为repo: base找到有效的基url

Question

我需要一些帮助，我正试图在yum update 5.9中安装CentOS，但我遇到了错误

> Loaded plugins: fastestmirror, kmod Loading mirror speeds from cached
> hostfile YumRepo Error: All mirror URLs are not using ftp, http[s] or
> file.  Eg. Invalid release/ removing mirrorlist with no valid mirrors:
> /var/cache/yum/base/mirrorlist.txt Error: Cannot find a valid baseurl
> for repo: base

请帮我解决这个问题

更新CentOSBase.repo的内容

   [base]
name=CentOS-$releasever - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
exclude=redhat-logos php53*

#released updates
[updates]
name=CentOS-$releasever - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
exclude=redhat-logos php53*

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
exclude=redhat-logos php53*

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
baseurl=http://mirror.centos.org/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
exclude=redhat-logos php53*

#contrib - packages by Centos Users
[contrib]
name=CentOS-$releasever - Contrib
#mirrorlist=http://mirrorlist.centos.org/?release=5$releasever&arch=$basearch&repo=contrib
baseurl=http://mirror.centos.org/centos/$releasever/contrib/$basearch/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5
exclude=redhat-logos php53*

提前谢谢你。

Answer 1

这是因为Centos 5已被废弃，需要手动更新Base文件来将所有内容指向Centos保险库。

来源：档案-1921年-文章

备份您的/etc/yum.pos.d/Centos-Base.repo

用以下内容替换将使您再次运行：

# 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-5.9 - Base
#mirrorlist=http://mirrorlist.centos.org/?release=5.9&arch=$basearch&repo=os
baseurl=http://vault.centos.org/5.9/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#released updates
[updates]
name=CentOS-5.9 - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=5.9&arch=$basearch&repo=updates
baseurl=http://vault.centos.org/5.9/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
[extras]
name=CentOS-5.9 - Extras
#mirrorlist=http://mirrorlist.centos.org/?release=5.9&arch=$basearch&repo=extras
baseurl=http://vault.centos.org/5.9/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-5.9 - Plus
#mirrorlist=http://mirrorlist.centos.org/?release=5.9&arch=$basearch&repo=centosplus
baseurl=http://vault.centos.org/5.9/os/$basearch/centosplus/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

#contrib - packages by Centos Users
[contrib]
name=CentOS-5.9 - Contrib
#mirrorlist=http://mirrorlist.centos.org/?release=5.9&arch=$basearch&repo=contrib
baseurl=http://vault.centos.org/5.9/os/$basearch/contrib/
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-5

Answer 2

这可能是由两种可能性造成的。

1.回购太旧，找不到

基于您的centos版本，我尝试通过链接找到操作系统。并从自述文件中获取这些信息。

这个目录(和版本的CentOS)是不推荐的。对于普通用户，您应该在路径中使用/5/而不是/5.9/。请参阅有关CentOS发行计划的常见问题： https://wiki.centos.org/FAQ/General 如果您知道自己在做什么，并且绝对希望保持在5.9级，那么可以转到http://vault.centos.org/获取包。请记住5.9不再有任何更新

在这个链接中，它建议您通过另一个链接查找旧版本。因此，您需要修改CentOS-Base.repo.

将所有http://mirror.centos.org/centos/***替换为http://vault.centos.org/***。

例如：

Original: baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
New:      baseurl=http://vault.centos.org/$releasever/os/$basearch/

2.网络发布

检查mirrorlist server是可访问的。

$ ping mirrorlist.centos.org

如果您可能遇到下面的错误消息。

ping: unknown host mirrorlist.centos.org

要解决这个问题，请在resolv.conf中添加一个有效的名称服务器(如果您不是root用户，请使用sudo )

$ echo nameserver 8.8.8.8 > /etc/resolv.conf