[root@centos02 yum.repos.d]# cd /etc/yum.repos.d
[root@centos02 yum.repos.d]# ll
总用量 32
-rw-r--r--. 1 root root 1664 4月 29 00:35 CentOS-Base.repo
-rw-r--r--. 1 root root 1309 4月 29 00:35 CentOS-CR.repo
-rw-r--r--. 1 root root 649 4月 29 00:35 CentOS-Debuginfo.repo
-rw-r--r--. 1 root root 314 4月 29 00:35 CentOS-fasttrack.repo
-rw-r--r--. 1 root root 630 4月 29 00:35 CentOS-Media.repo
-rw-r--r--. 1 root root 1331 4月 29 00:35 CentOS-Sources.repo
-rw-r--r--. 1 root root 4768 4月 29 00:35 CentOS-Vault.repo
[root@centos02 yum.repos.d]#
[root@centos02 yum.repos.d]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
[root@centos02 yum.repos.d]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
--2018-08-13 01:08:28-- http://mirrors.aliyun.com/repo/Centos-7.repo
正在解析主机 mirrors.aliyun.com (mirrors.aliyun.com)... 121.9.229.239, 121.9.229.123, 121.9.229.238, ...
正在连接 mirrors.aliyun.com (mirrors.aliyun.com)|121.9.229.239|:80... 已连接。
已发出 HTTP 请求，正在等待回应... 200 OK
长度：2523 (2.5K) [application/octet-stream]
正在保存至: “/etc/yum.repos.d/CentOS-Base.repo”
100%[======================================>] 2,523 --.-K/s 用时 0s
2018-08-13 01:08:28 (634 MB/s) - 已保存 “/etc/yum.repos.d/CentOS-Base.repo” [2523/2523])
[root@centos02 yum.repos.d]#
[root@centos02 yum.repos.d]# yum clean all
已加载插件：fastestmirror, langpacks
正在清理软件源： base extras updates
Cleaning up everything
Maybe you want: rm -rf /var/cache/yum, to also free up space taken by orphaned data from disabled or removed repos
Cleaning up list of fastest mirrors
[root@centos02 yum.repos.d]#
[root@centos02 yum.repos.d]# yum makecache
已加载插件：fastestmirror, langpacks
Determining fastest mirrors
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
http://mirrors.aliyuncs.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 12] Timeout on http://mirrors.aliyuncs.com/centos/7/os/x86_64/repodata/repomd.xml: (28, 'Connection timed out after 30004 milliseconds')
正在尝试其它镜像。
http://mirrors.cloud.aliyuncs.com/centos/7/os/x86_64/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: mirrors.cloud.aliyuncs.com; 未知的错误"
正在尝试其它镜像。
base | 3.6 kB 00:00
extras | 3.4 kB 00:00
updates | 3.4 kB 00:00
(1/12): base/7/x86_64/group_gz | 166 kB 00:00
(2/12): base/7/x86_64/primary_db | 5.9 MB 00:00:24
(3/12): base/7/x86_64/filelists_db | 6.9 MB 00:00:28
(4/12): extras/7/x86_64/filelists_db | 588 kB 00:00:03
(5/12): extras/7/x86_64/primary_db | 173 kB 00:00:01
(6/12): extras/7/x86_64/other_db | 110 kB 00:00:00
(7/12): extras/7/x86_64/prestodelta | 68 kB 00:00:06
(8/12): updates/7/x86_64/prestodelta | 409 kB 00:00:03
(9/12): base/7/x86_64/other_db | 2.5 MB 00:00:14
(10/12): updates/7/x86_64/filelists_db | 2.4 MB 00:00:17
(11/12): updates/7/x86_64/other_db | 381 kB 00:00:09
(12/12): updates/7/x86_64/primary_db | 4.3 MB 00:00:27
元数据缓存已建立
[root@centos02 yum.repos.d]#
[root@centos02 yum.repos.d]# yum repolist
已加载插件：fastestmirror, langpacks
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
源标识 源名称 状态
base/7/x86_64 CentOS-7 - Base - mirrors.aliyun.com 9,911
extras/7/x86_64 CentOS-7 - Extras - mirrors.aliyun.com 369
updates/7/x86_64 CentOS-7 - Updates - mirrors.aliyun.com 1,041
repolist: 11,321
[root@centos02 yum.repos.d]#
