mkdir /bf
备份
cp -v /etc/yum.repos.d/* /bf/ 备份过后
rm -rf /etc/yum.repos.d/*
删除
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.cloud.tencent.com/repo/centos8_base.repo
yum clean all 清理之前的yum缓存
yum makecache 运行新的缓存
[root@10-41-27-175 yum.repos.d]# yum makecache
Qcloud centos OS - x86_64 446 kB/s | 4.6 MB 00:10
Qcloud centos extras - x86_64 2.5 kB/s | 10 kB 00:04
Metadata cache created.
yum list
[root@10-41-27-175 yum.repos.d]# yum list
Last metadata expiration check: 0:00:58 ago on Thu 03 Feb 2022 02:41:29 PM CST.
Installed Packages
NetworkManager.x86_64 1:1.26.0-8.el8 @anaconda
NetworkManager-config-server.noarch 1:1.26.0-8.el8 @anaconda
NetworkManager-libnm.x86_64 1:1.26.0-8.el8 @anaconda
NetworkManager-team.x86_64 1:1.26.0-8.el8 @anaconda
NetworkManager-tui.x86_64 1:1.26.0-8.el8 @anaconda
PackageKit.x86_64 1.1.12-6.el8 @AppStream
PackageKit-glib.x86_64 1.1.12-6.el8 @AppStream
abattis-cantarell-fonts.noarch 0.0.25-4.el8 @AppStream
acl.x86_64 2.2.53-1.el8 @anaconda
adcli.x86_64 0.8.2-7.el8 @anaconda
adobe-mappings-cmap.noarch 20171205-3.el8 @AppStream
adobe-mappings-cmap-deprecated.noarch 20171205-3.el8 @AppStream
adobe-mappings-pdf.noarch 20180407-1.el8 @AppStream
alsa-sof-firmware.noarch 1.5-2.el8 @anaconda
annobin.x86_64
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