[[email protected] ~]# docker pull centos
Using default tag: latest
latest: Pulling from library/centos
a1d0c7532777: Pull complete
Digest: sha256:a27fd8080b517143cbbbab9dfb7c8571c40d67d534bbdee55bd6c473f432b177
Status: Downloaded newer image for centos:latest
docker.io/library/centos:latest
一次学习时，在docker里用下面命令直接下载最新的centos时
[[email protected] home]# cat /etc/redhat-release
CentOS Linux release 8.4.2105
需要下载vim时,弹出下面错误
[[email protected] home]# yum install vim
Failed to set locale, defaulting to C.UTF-8
CentOS Linux 8 - AppStream 5.4 B/s | 38 B 00:07
Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist
问题分析：
第一种可能的情况便是网络连接问题
检查是否可以连接外部网络，可以使用 ping baidu.com 查看是否有丢包情况。
如果丢包，则进一步检查网络连接是否正常；如果没有丢包，继续阅读下文
[[email protected] home]# ping baidu.com
PING baidu.com (110.242.68.66) 56(84) bytes of data.
64 bytes from 110.242.68.66 (110.242.68.66): icmp_seq=1 ttl=48 time=64.4 ms
64 bytes from 110.242.68.66 (110.242.68.66): icmp_seq=2 ttl=48 time=69.1 ms
64 bytes from 110.242.68.66 (110.242.68.66): icmp_seq=3 ttl=48 time=186 ms
64 bytes from 110.242.68.66 (110.242.68.66): icmp_seq=4 ttl=48 time=119 ms
64 bytes from 110.242.68.66 (110.242.68.66): icmp_seq=5 ttl=48 time=117 ms
64 bytes from 110.242.68.66 (110.242.68.66): icmp_seq=6 ttl=48 time=143 ms
^C
--- baidu.com ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 8036ms
rtt min/avg/max/mdev = 64.381/125.352/186.111/42.685 ms
那么第二种情况，便是 CentOS 已经停止维护的问题。2020 年 12 月 8 号，CentOS 官方宣布了停止维护 CentOS Linux 的计划，并推出了 CentOS Stream 项目，CentOS Linux 8 作为 RHEL 8 的复刻版本，生命周期缩短，于 2021 年 12 月 31 日停止更新并停止维护（EOL），更多的信息可以查看 CentOS 官方公告。如果需要更新 CentOS，需要将镜像从 mirror.centos.org 更改为 vault.centos.org
解决方法
1.进入到 yum 的 repos 目录
cd /etc/yum.repos.d/
2.修改 centos 文件内容
sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
3.生成缓存更新（第一次更新，速度稍微有点慢，耐心等待两分钟左右）
yum makecache
4.运行 yum update 并重新安装 vim
yum update -y
yum -y install vim
操作过程及结果如下：
点击查看代码
[[email protected] home]# cd /etc/yum.repos.d/
[[email protected] yum.repos.d]# sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
[[email protected] yum.repos.d]# sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g'
/etc/yum.repos.d/CentOS-*
[[email protected] yum.repos.d]# yum makecache
Failed to set locale, defaulting to C.UTF-8
^CCentOS Linux 8 - AppStream 322 kB/s | 2.6 MB 00:08
Error: Failed to download metadata for repo 'appstream': Librepo was interrupted by a signal
[[email protected] yum.repos.d]# yum makecache
Failed to set locale, defaulting to C.UTF-8
CentOS Linux 8 - AppStream 633 kB/s | 8.4 MB 00:13
CentOS Linux 8 - BaseOS 864 kB/s | 4.6 MB 00:05
CentOS Linux 8 - Extras 1.4 kB/s | 10 kB 00:07
Metadata cache created.
[[email protected] yum.repos.d]# yum update -y
Failed to set locale, defaulting to C.UTF-8
Last metadata expiration check: 0:00:50 ago on Fri Aug 12 15:34:23 2022.
Dependencies resolved.
===============================================================================
Package Arch Version Repo Size
===============================================================================
Upgrading:
bash x86_64 4.4.20-2.el8 baseos 1.5 M
bind-export-libs x86_64 32:9.11.26-6.el8 baseos 1.1 M
binutils x86_64 2.30-108.el8_5.1 baseos 5.8 M
ca-certificates noarch 2021.2.50-80.0.el8_4 baseos 390 k
centos-gpg-keys noarch 1:8-3.el8 baseos 12 k
centos-linux-release noarch 8.5-1.2111.el8 baseos 22 k
...
rpm-plugin-systemd-inhibit x86_64 4.14.3-19.el8 baseos 78 k
shared-mime-info x86_64 1.9-3.el8 baseos 329 k
trousers x86_64 0.3.15-1.el8 baseos 152 k
Transaction Summary
===============================================================================
Install 35 Packages
Upgrade 104 Packages
Total download size: 77 M
Downloading Packages:
(1/139): python3-unbound-1.7.3-17.el8.x86_64.r 118 kB/s | 119 kB 00:01
(2/139): unbound-libs-1.7.3-17.el8.x86_64.rpm 350 kB/s | 503 kB 00:01
(3/139): libxkbcommon-0.9.1-1.el8.x86_64.rpm 78 kB/s | 116 kB 00:01
(4/139): crypto-policies-scripts-20210617-1.gi 270 kB/s | 83 kB 00:00
(5/139): diffutils-3.6-6.el8.x86_64.rpm 1.1 MB/s | 358 kB 00:00
(6/139): elfutils-debuginfod-client-0.185-1.el 273 kB/s | 66 kB 00:00
...
(137/139): yum-4.7.0-4.el8.noarch.rpm 404 kB/s | 205 kB 00:00
(138/139): util-linux-2.32.1-28.el8.x86_64.rpm 1.4 MB/s | 2.5 MB 00:01
(139/139): python3-libs-3.6.8-41.el8.x86_64.rp 1.0 MB/s | 7.8 MB 00:07
-------------------------------------------------------------------------------
Total 2.6 MB/s | 77 MB 00:29
warning: /var/cache/dnf/appstream-d7987f026ef99c82/packages/libxkbcommon-0.9.1-1.el8.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 8483c65d: NOKEY
CentOS Linux 8 - AppStream 1.6 MB/s | 1.6 kB 00:00
Importing GPG key 0x8483C65D:
Userid : "CentOS (CentOS Official Signing Key) <[email protected]>"
Fingerprint: 99DB 70FA E1D7 CE22 7FB6 4882 05B5 55B3 8483 C65D
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
Key imported successfully
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Running scriptlet: filesystem-3.8-6.el8.x86_64 1/1
Preparing : 1/1
Running scriptlet: libgcc-8.5.0-4.el8_5.x86_64 1/1
Upgrading : libgcc-8.5.0-4.el8_5.x86_64 1/243
Running scriptlet: libgcc-8.5.0-4.el8_5.x86_64 1/243
Upgrading : python3-pip-wheel-9.0.3-20.el8.noarch 2/243
...
Cleanup : tzdata-2021a-1.el8.noarch 241/243
Cleanup : ncurses-base-6.1-7.20180224.el8.noarch 242/243
Cleanup : libgcc-8.4.1-1.el8.x86_64 243/243
Running scriptlet: libgcc-8.4.1-1.el8.x86_64 243/243
Running scriptlet: filesystem-3.8-6.el8.x86_64 243/243
Running scriptlet: ca-certificates-2021.2.50-80.0.el8_4.noarch 243/243
Running scriptlet: crypto-policies-scripts-20210617-1.gitc776d3e.e 243/243
Running scriptlet: libgcc-8.4.1-1.el8.x86_64 243/243
Running scriptlet: glibc-common-2.28-164.el8.x86_64 243/243
Running scriptlet: glib2-2.56.4-156.el8.x86_64 243/243
Running scriptlet: shared-mime-info-1.9-3.el8.x86_64 243/243
Running scriptlet: systemd-239-51.el8_5.2.x86_64 243/243
Running scriptlet: systemd-udev-239-51.el8_5.2.x86_64 243/243
Verifying : libxkbcommon-0.9.1-1.el8.x86_64 1/243
Verifying : python3-unbound-1.7.3-17.el8.x86_64 2/243
Verifying : unbound-libs-1.7.3-17.el8.x86_64 3/243
Verifying : xkeyboard-config-2.28-1.el8.noarch 4/243
Verifying : crypto-policies-scripts-20210617-1.gitc776d3e.e 5/243
Verifying : diffutils-3.6-6.el8.x86_64 6/243
...
Verifying : vim-minimal-2:8.0.1763-15.el8.x86_64 241/243
Verifying : yum-4.7.0-4.el8.noarch 242/243
Verifying : yum-4.4.2-11.el8.noarch 243/243
Upgraded:
bash-4.4.20-2.el8.x86_64
bind-export-libs-32:9.11.26-6.el8.x86_64
binutils-2.30-108.el8_5.1.x86_64
ca-certificates-2021.2.50-80.0.el8_4.noarch
centos-gpg-keys-1:8-3.el8.noarch
centos-linux-release-8.5-1.2111.el8.noarch
...
util-linux-2.32.1-28.el8.x86_64
vim-minimal-2:8.0.1763-16.el8.x86_64
yum-4.7.0-4.el8.noarch
Installed:
crypto-policies-scripts-20210617-1.gitc776d3e.el8.noarch
diffutils-3.6-6.el8.x86_64
elfutils-debuginfod-client-0.185-1.el8.x86_64
file-5.33-20.el8.x86_64
gettext-0.19.8.1-17.el8.x86_64
gettext-libs-0.19.8.1-17.el8.x86_64
...
unbound-libs-1.7.3-17.el8.x86_64
which-2.21-16.el8.x86_64
xkeyboard-config-2.28-1.el8.noarch
Complete!
[[email protected] yum.repos.d]# yum -y install vim
Last metadata expiration check: 0:02:25 ago on Fri 12 Aug 2022 03:34:23 PM UTC.
Dependencies resolved.
===============================================================================
Package Arch Version Repository Size
===============================================================================
Installing:
vim-enhanced x86_64 2:8.0.1763-16.el8 appstream 1.4 M
Installing dependencies:
gpm-libs x86_64 1.20.7-17.el8 appstream 39 k
vim-common x86_64 2:8.0.1763-16.el8 appstream 6.3 M
vim-filesystem noarch 2:8.0.1763-16.el8 appstream 49 k
Transaction Summary
===============================================================================
Install 4 Packages
Total download size: 7.8 M
Installed size: 30 M
Downloading Packages:
(1/4): gpm-libs-1.20.7-17.el8.x86_64.rpm 24 kB/s | 39 kB 00:01
(2/4): vim-filesystem-8.0.1763-16.el8.noarch.r 111 kB/s | 49 kB 00:00
(3/4): vim-common-8.0.1763-16.el8.x86_64.rpm 1.2 MB/s | 6.3 MB 00:05
(4/4): vim-enhanced-8.0.1763-16.el8.x86_64.rpm 232 kB/s | 1.4 MB 00:06
-------------------------------------------------------------------------------
Total 1.3 MB/s | 7.8 MB 00:06
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
Preparing : 1/1
Installing : vim-filesystem-2:8.0.1763-16.el8.noarch 1/4
Installing : vim-common-2:8.0.1763-16.el8.x86_64 2/4
Installing : gpm-libs-1.20.7-17.el8.x86_64 3/4
Running scriptlet: gpm-libs-1.20.7-17.el8.x86_64 3/4
Installing : vim-enhanced-2:8.0.1763-16.el8.x86_64 4/4
Running scriptlet: vim-enhanced-2:8.0.1763-16.el8.x86_64 4/4
Running scriptlet: vim-common-2:8.0.1763-16.el8.x86_64 4/4
Verifying : gpm-libs-1.20.7-17.el8.x86_64 1/4
Verifying : vim-common-2:8.0.1763-16.el8.x86_64 2/4
Verifying : vim-enhanced-2:8.0.1763-16.el8.x86_64 3/4
Verifying : vim-filesystem-2:8.0.1763-16.el8.noarch 4/4
Installed:
gpm-libs-1.20.7-17.el8.x86_64
vim-common-2:8.0.1763-16.el8.x86_64
vim-enhanced-2:8.0.1763-16.el8.x86_64
vim-filesystem-2:8.0.1763-16.el8.noarch
Complete!
[[email protected] yum.repos.d]# cd /home
[[email protected] home]# vim test.txt
[[email protected] home]#
Linux之错误解决Failed to set locale, defaulting to C.UTF-8
原创文章，作者：ItWorker，如若转载，请注明出处：https://blog.ytso.com/280216.html