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解决centos7下的Error: Cannot find a valid baseurl for repo: base
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1、首先备份 CentOS-Base.repo sudo mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
2.将yum源配置文件/etc/yum.repos.d/CentOS-Base.repo改为清华源，内容如下:
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-
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releasever - Base baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/
releasever−Basebaseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/releasever/os/KaTeX parse error: Expected 'EOF', got '#' at position 11: basearch/ #̲mirrorlist=http…releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
#released updates
[updates]
name=CentOS-
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releasever - Updates baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/
releasever−Updatesbaseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/releasever/updates/KaTeX parse error: Expected 'EOF', got '#' at position 11: basearch/ #̲mirrorlist=http…releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
#additional packages that may be useful
[extras]
name=CentOS-
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releasever - Extras baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/
releasever−Extrasbaseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/releasever/extras/KaTeX parse error: Expected 'EOF', got '#' at position 11: basearch/ #̲mirrorlist=http…releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-
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releasever - Plus baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/
releasever−Plusbaseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/releasever/centosplus/KaTeX parse error: Expected 'EOF', got '#' at position 11: basearch/ #̲mirrorlist=http…releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
3、清除缓存
yum clean all
rm -rf /var/cache/yum/
4、生成缓存
yum makecache
转载自
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