CentOS 7.1.1503

// backup

[root@localhost yum.repos.d]# cd /etc/yum.repos.d/

[root@localhost yum.repos.d]# mv CentOS-Base.repo CentOS-Base.repo.bak

mv: overwrite ‘CentOS-Base.repo.bak‘? y

[root@localhost yum.repos.d]#

// wget

[root@localhost yum.repos.d]# wget http://mirrors.163.com/.help/CentOS7-Base-163.repo

--2015-06-24 18:40:24--  http://mirrors.163.com/.help/CentOS7-Base-163.repo

Resolving mirrors.163.com (mirrors.163.com)... 123.58.173.186, 123.58.173.185

Connecting to mirrors.163.com (mirrors.163.com)|123.58.173.186|:80... connected.

HTTP request sent, awaiting response... 200 OK

Length: 1572 (1.5K) [application/octet-stream]

Saving to: ‘CentOS7-Base-163.repo.1‘

100%[======================================>] 1,572       --.-K/s   in 0s

2015-06-24 18:40:24 (192 MB/s) - ‘CentOS7-Base-163.repo.1‘ saved [1572/1572]

[root@localhost yum.repos.d]#

// cp

[root@localhost yum.repos.d]# cp CentOS7-Base-163.repo CentOS-Base.repo

[root@localhost yum.repos.d]#

// yum clean all

[root@localhost yum.repos.d]# yum clean all

Failed to set locale, defaulting to C

??????fastestmirror, langpacks

Repository base is listed more than once in the configuration

Repository updates is listed more than once in the configuration

Repository extras is listed more than once in the configuration

Repository centosplus is listed more than once in the configuration

正在清理软件源： base extras updates

Cleaning up everything

Cleaning up list of fastest mirrors

// yum makecache

[root@localhost yum.repos.d]# yum makecache

Failed to set locale, defaulting to C

??????fastestmirror, langpacks

Repository base is listed more than once in the configuration

Repository updates is listed more than once in the configuration

Repository extras is listed more than once in the configuration

Repository centosplus is listed more than once in the configuration

base                                                     | 3.6 kB     00:00

extras                                                   | 3.4 kB     00:00

// yum update

[root@localhost yum.repos.d]# yum update

Failed to set locale, defaulting to C

??????fastestmirror, langpacks

Repository base is listed more than once in the configuration

Repository updates is listed more than once in the configuration

Repository extras is listed more than once in the configuration

Repository centosplus is listed more than once in the configuration

Loading mirror speeds from cached hostfile

????????

--> ??????

---> ??? abrt.x86_64.0.2.1.11-19.el7.centos.0.3 ?? ??

---> ??? abrt.x86_64.0.2.1.11-22.el7.centos.0.1 ?? ??

---> ??? abrt-addon-ccpp.x86_64.0.2.1.11-19.el7.centos.0.3 ?? ??

---> ??? abrt-addon-ccpp.x86_64.0.2.1.11-22.el7.centos.0.1 ?? ??