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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）5 h4 k( ]2 G% B% U2 Z& X
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[root@zabbix-server ~]# yum install devtoolset-11-gcc*7 U& x/ p8 n! v% A0 } P6 Z
Loaded plugins: fastestmirror5 l$ y. E/ F2 K& t$ @7 j
Loading mirror speeds from cached hostfile
" o, @* i( W4 j3 K) zCould not retrieve mirrorlist http://mirrorlist.centos.org/?re ... =os&infra=stock error was
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One of the configured repositories failed (Unknown),! L1 d( M" }* y# l2 N% S" j
and yum doesn't have enough cached data to continue. At this point the only8 _3 R' y0 L& v) E; t
safe thing yum can do is fail. There are a few ways to work "fix" this:; v9 j9 w" N: @& Q
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1. Contact the upstream for the repository and get them to fix the problem.+ r6 J) d& }7 H3 I7 P( u. U, \
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2. Reconfigure the baseurl/etc. for the repository, to point to a working/ Y- q( w# i" G0 N- F3 t# c
upstream. This is most often useful if you are using a newer
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packages for the previous distribution release still work).% B% q. A( U% f V x- ~
$ ?: B4 Y5 O2 z7 L9 I 3. Run the command with the repository temporarily disabled
( T# Z7 }$ @' z( ] yum --disablerepo=<repoid> ...
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4. Disable the repository permanently, so yum won't use it by default. Yum/ ]5 C1 m# E' Z9 K5 r
will then just ignore the repository until you permanently enable it
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! g$ w5 L# c2 ^. V; _& J yum-config-manager --disable <repoid>
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- z- |, _- q" p subscription-manager repos --disable=<repoid>- p% q3 g7 t4 o; Q
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5. Configure the failing repository to be skipped, if it is unavailable.% Q9 c+ u2 k w3 L
Note that yum will try to contact the repo. when it runs most commands,
! G ?1 m' F6 }1 j" I so will have to try and fail each time (and thus. yum will be be much' n3 e( y% F3 _9 G7 c0 [
slower). If it is a very temporary problem though, this is often a nice# k" _# U0 u) _% ~
compromise:8 W3 U: t: Z7 O% }4 O
" Q* R5 U7 ^8 [$ E% B& D6 S yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true( v7 u2 o3 D; R! S8 l
0 Y# ~( o u. [8 V: |Cannot find a valid baseurl for repo: base/7/x86_64' H# S7 ]5 ]% Y3 t6 r% g$ q( o
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【解决办法】6 B7 V, d; K3 _0 v; G* E
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5 l# B- i8 E. K* @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。
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: ^! D0 { X9 ^. D1 f$ h4 l8 qCentOS7更换镜像源$ Z; v: s# l! v4 q4 `6 Q3 |
1、先安装wget/ A5 c: P1 P. h& c7 \+ J
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yum install -y wget7 u( ^' Q; y8 o; A
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5 s0 t l, X5 {. Q. k& r: F3 \2、打开阿里镜像http://mirrors.aliyun.com/9 y7 s) y1 ^& r# h
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点击，帮助，查看详情：
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3、下载CentOS 7的对应的repo文件
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wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo+ T( }1 {5 H. r
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#或者
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curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
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发表于 2024-11-22 17:05:27