centos7.9 更换默认源为阿里源
1、查看系统
[root@centos7pc1 test]# cat /etc/redhat-release CentOS Linux release 7.9.2009 (Core) [root@centos7pc1 test]# hostnamectl Static hostname: centos7pc1 Icon name: computer-vm Chassis: vm Machine ID: d44b8799f26a411a87bb728b10e24a41 Boot ID: 3ce29e0ab14f40cfbb2f47c98d1bc248 Virtualization: vmware Operating System: CentOS Linux 7 (Core) CPE OS Name: cpe:/o:centos:centos:7 Kernel: Linux 3.10.0-1160.62.1.el7.x86_64 Architecture: x86-64
2、查看当前源
[root@centos7pc1 test]# ls /etc/yum.repos.d/ CentOS-Base.repo CentOS-Debuginfo.repo CentOS-Media.repo CentOS-Vault.repo epel.repo CentOS-CR.repo CentOS-fasttrack.repo CentOS-Sources.repo CentOS-x86_64-kernel.repo epel-testing.repo
3、备份当前源
[root@centos7pc1 test]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo_bak [root@centos7pc1 test]# ls /etc/yum.repos.d/ CentOS-Base.repo_bak CentOS-Debuginfo.repo CentOS-Media.repo CentOS-Vault.repo epel.repo CentOS-CR.repo CentOS-fasttrack.repo CentOS-Sources.repo CentOS-x86_64-kernel.repo epel-testing.repo
4、下载阿里源
[root@centos7pc1 test]# wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo --2022-05-02 19:34:37-- https://mirrors.aliyun.com/repo/Centos-7.repo Resolving mirrors.aliyun.com (mirrors.aliyun.com)... 111.63.55.248, 111.63.55.242, 111.63.55.244, ... Connecting to mirrors.aliyun.com (mirrors.aliyun.com)|111.63.55.248|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 2523 (2.5K) [application/octet-stream] Saving to: ‘/etc/yum.repos.d/CentOS-Base.repo’ 100%[===========================================================================================>] 2,523 --.-K/s in 0s 2022-05-02 19:34:37 (1.20 GB/s) - ‘/etc/yum.repos.d/CentOS-Base.repo’ saved [2523/2523] [root@centos7pc1 test]# ls /etc/yum.repos.d/ CentOS-Base.repo CentOS-Debuginfo.repo CentOS-Sources.repo epel.repo CentOS-Base.repo_bak CentOS-fasttrack.repo CentOS-Vault.repo epel-testing.repo CentOS-CR.repo CentOS-Media.repo CentOS-x86_64-kernel.repo
5、清空缓存、生成缓存
[root@centos7pc1 test]# yum clean all ## 清空缓存 Loaded plugins: fastestmirror, langpacks Cleaning repos: base epel extras updates Cleaning up list of fastest mirrors [root@centos7pc1 test]# yum makecache ## 生成缓存 Loaded plugins: fastestmirror, langpacks Determining fastest mirrors epel/x86_64/metalink | 7.5 kB 00:00:00 * base: mirrors.aliyun.com * epel: mirrors.bfsu.edu.cn * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com base | 3.6 kB 00:00:00 epel | 4.7 kB 00:00:00 extras | 2.9 kB 00:00:00 updates | 2.9 kB 00:00:00 (1/16): base/7/x86_64/group_gz | 153 kB 00:00:00 (2/16): base/7/x86_64/filelists_db | 7.2 MB 00:00:00 (3/16): epel/x86_64/group_gz | 96 kB 00:00:00 (4/16): base/7/x86_64/primary_db | 6.1 MB 00:00:00 (5/16): base/7/x86_64/other_db | 2.6 MB 00:00:00 (6/16): epel/x86_64/filelists_db | 12 MB 00:00:00 (7/16): epel/x86_64/updateinfo | 1.0 MB 00:00:00 (8/16): epel/x86_64/prestodelta | 553 B 00:00:00 (9/16): epel/x86_64/primary_db | 7.0 MB 00:00:00 (10/16): epel/x86_64/other_db | 3.4 MB 00:00:00 (11/16): extras/7/x86_64/filelists_db | 277 kB 00:00:00 (12/16): extras/7/x86_64/primary_db | 246 kB 00:00:00 (13/16): extras/7/x86_64/other_db | 147 kB 00:00:00 (14/16): updates/7/x86_64/primary_db | 15 MB 00:00:00 (15/16): updates/7/x86_64/filelists_db | 8.2 MB 00:00:00 (16/16): updates/7/x86_64/other_db | 1.0 MB 00:00:00 Metadata Cache Created
6、测试
[root@centos7pc1 test]# yum reinstall httpd -y Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * epel: mirrors.bfsu.edu.cn * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com Resolving Dependencies --> Running transaction check ---> Package httpd.x86_64 0:2.4.6-97.el7.centos.5 will be reinstalled --> Finished Dependency Resolution Dependencies Resolved ===================================================================================================================================== Package Arch Version Repository Size ===================================================================================================================================== Reinstalling: httpd x86_64 2.4.6-97.el7.centos.5 updates 2.7 M Transaction Summary ===================================================================================================================================== Reinstall 1 Package Total download size: 2.7 M Installed size: 9.4 M Downloading packages: httpd-2.4.6-97.el7.centos.5.x86_64.rpm | 2.7 MB 00:00:00 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : httpd-2.4.6-97.el7.centos.5.x86_64 1/1 Verifying : httpd-2.4.6-97.el7.centos.5.x86_64 1/1 Installed: httpd.x86_64 0:2.4.6-97.el7.centos.5 Complete!
没有问题。
