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CentOS7 yum安装报错“Could not resolve host: mirrorlist.centos.org； Name or service not known“之解决办法（换源）
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[root@zabbix-server ~]# yum install devtoolset-11-gcc*
5 v1 f6 B7 _# f! G$ z- _1 l. V9 ?Loaded plugins: fastestmirror; n% ` ~% M/ X7 L: V+ e" H
Loading mirror speeds from cached hostfile
* |4 G, d1 |; E( zCould not retrieve mirrorlist http://mirrorlist.centos.org/?re ... =os&infra=stock error was8 N- G+ J3 I2 ^ Z
14: curl#6 - "Could not resolve host: mirrorlist.centos.org; Unknown error"
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+ E. S& F$ J! c% F# R7 E One of the configured repositories failed (Unknown),, |9 V! D3 i) O. R" k7 e
and yum doesn't have enough cached data to continue. At this point the only
0 i+ x8 V1 x! G! ~, j; h safe thing yum can do is fail. There are a few ways to work "fix" this:
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1. Contact the upstream for the repository and get them to fix the problem.. h$ ~ w& \1 t/ P
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2. Reconfigure the baseurl/etc. for the repository, to point to a working
4 u( `4 b2 h, I upstream. This is most often useful if you are using a newer
4 z9 a7 ~( [5 ?* }6 g/ ] distribution release than is supported by the repository (and the
! }! G2 R# m. ]5 O packages for the previous distribution release still work).! ]4 @( `" v' U/ n+ W% K0 B
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3. Run the command with the repository temporarily disabled
% |+ [; J3 _* ]+ Y" A3 m yum --disablerepo=<repoid> ...
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$ L) {* j V: V' z7 i 4. Disable the repository permanently, so yum won't use it by default. Yum( F8 v1 B& b# l* p3 N; M
will then just ignore the repository until you permanently enable it
3 X3 ^& O7 B( W" x2 w$ b again or use --enablerepo for temporary usage:
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yum-config-manager --disable <repoid>
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3 b% h+ H: S0 h* f4 D/ `# y subscription-manager repos --disable=<repoid>
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5. Configure the failing repository to be skipped, if it is unavailable.9 N5 n0 ~2 t% n# D3 N, }/ N) R
Note that yum will try to contact the repo. when it runs most commands,
/ J( ?# ?4 d! f" r so will have to try and fail each time (and thus. yum will be be much
. S& U* O7 G9 Z* i9 D2 ~ slower). If it is a very temporary problem though, this is often a nice$ D* o! k' ?4 Q( Q
compromise:, j% x( }: X0 I) P( O! n
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yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true
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Cannot find a valid baseurl for repo: base/7/x86_64
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3 F* T5 G3 J, j/ f! E【解决办法】. r8 E9 P3 z/ ?' v5 B+ c4 Z5 |
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; t8 T; X) K( K$ c) ? {( O" c看到报错日志中加粗的字体，命令行ping mirrorlist.centos.org 不通。试着ping www.baidu.com是正常的，说明DNS解析没问题。基本确认是yum源的问题。+ C& ~5 q! I% k' ^
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$ A7 z2 q# E jCentOS7更换镜像源$ f/ T& G/ {3 |* J$ [$ ~. F
1、先安装wget
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yum install -y wget
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2、打开阿里镜像http://mirrors.aliyun.com/
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点击，帮助，查看详情：: h5 a- v# @3 J: \/ S, Q1 ~
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3、下载CentOS 7的对应的repo文件& ]/ S& _- |+ d, j$ P! w: q( h
2 Y) ?' y* J( E, Z' t/ X, nwget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
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#或者5 D$ I$ u7 Q6 l0 o/ M* U
% O0 w: X0 r8 |( Ocurl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo5 _$ h$ Q9 n9 n) `5 l% H: ?! t# c
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发表于 2024-11-22 17:05:27