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centos 7-amd64如何替换yum源

资源编号:570035 热度：214

centos 7-amd64如何替换yum源

### 一、进入yum.repo.d
```
cd /etc/yum.repos.d/
ls
 
CentOS-Base.repo  CentOS-Sources.repo
```
### 二、备份原yum源
```
mkdir yum-back
mv CentOS-* yum-back/
```
### 三、替换yum源为163
vim /etc/yum.repos.d/CentOS-Base.repo
```
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client.  You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the 
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base - 163.com
#mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
baseurl=https://mirrors.163.com/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=https://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#released updates
[updates]
name=CentOS-$releasever - Updates - 163.com
#mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
baseurl=https://mirrors.163.com/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=https://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - 163.com
#mirrorlist=https://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
baseurl=https://mirrors.163.com/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=https://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - 163.com
baseurl=https://mirrors.163.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=https://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7

```
```
curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo
```
### 五、运行yum生成缓存
```
yum clean all
yum makecache
```
### 六、验证
```
yum -y install gcc-c++
 ```
 
 今天在使用yum安装的时候每个安装包都报了Failing package is: kernel-headers-3.10.0-1127.13.1.el7.x86_64
GPG Keys are configured as: http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-6错误

记录一下解决办法

在每一个yum命令安装的背后加上--nogpgcheck

例如安装gcc
```
yum install gcc --nogpgcheck
```