【发布时间】：2019-10-10 18:59:12
【问题描述】：
我想用 yum 在 Centos 6 上安装 R。但我总是得到“没有可用的 R 包”。
下面是我的步骤：
首先，我要安装epel。
[root@host ~]# yum install epel-release
Loaded plugins: fastestmirror
Setting up Install Process
Loading mirror speeds from cached hostfile
* base: centos.ca-west.mirror.fullhost.io
* elrepo-kernel: repos.lax-noc.com
* extras: centos.ca-west.mirror.fullhost.io
* updates: centos.ca-west.mirror.fullhost.io
Package epel-release-6-8.noarch already installed and latest version
Nothing to do
那我要安装R：
# yum install R
Loaded plugins: fastestmirror
Setting up Install Process
Loading mirror speeds from cached hostfile
* base: centos.ca-west.mirror.fullhost.io
* elrepo-kernel: repos.lax-noc.com
* extras: centos.ca-west.mirror.fullhost.io
* updates: centos.ca-west.mirror.fullhost.io
No package R available
Error: Nothing to do.
我也尝试使用：
yum clean all
yum update
清洁环境。但是遇到同样的问题。
下面是repolist的信息。希望对您有所帮助。
# sudo yum repolist all
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.ca-west.mirror.fullhost.io
* elrepo-kernel: repos.lax-noc.com
* extras: centos.ca-west.mirror.fullhost.io
* updates: centos.ca-west.mirror.fullhost.io
repo id repo name status
C6.0-base CentOS-6.0 - Base disabled
C6.0-centosplus CentOS-6.0 - CentOSPlus disabled
C6.0-contrib CentOS-6.0 - Contrib disabled
C6.0-extras CentOS-6.0 - Extras disabled
C6.0-updates CentOS-6.0 - Updates disabled
C6.1-base CentOS-6.1 - Base disabled
C6.1-centosplus CentOS-6.1 - CentOSPlus disabled
C6.1-contrib CentOS-6.1 - Contrib disabled
C6.1-extras CentOS-6.1 - Extras disabled
C6.1-updates CentOS-6.1 - Updates disabled
C6.2-base CentOS-6.2 - Base disabled
C6.2-centosplus CentOS-6.2 - CentOSPlus disabled
C6.2-contrib CentOS-6.2 - Contrib disabled
C6.2-extras CentOS-6.2 - Extras disabled\
C6.2-updates CentOS-6.2 - Updates disabled
C6.3-base CentOS-6.3 - Base disabled\
C6.3-centosplus CentOS-6.3 - CentOSPlus disabled
C6.3-contrib CentOS-6.3 - Contrib disabled
C6.3-extras CentOS-6.3 - Extras disabled
C6.3-updates CentOS-6.3 - Updates disabled
C6.4-base CentOS-6.4 - Base disabled
C6.4-centosplus CentOS-6.4 - CentOSPlus disabled
C6.4-contrib CentOS-6.4 - Contrib disabled
C6.4-extras CentOS-6.4 - Extras disabled
C6.4-updates CentOS-6.4 - Updates disabled
C6.5-base CentOS-6.5 - Base disabled
C6.5-centosplus CentOS-6.5 - CentOSPlus disabled
C6.5-contrib CentOS-6.5 - Contrib disabled
C6.5-extras CentOS-6.5 - Extras disabled
C6.5-updates CentOS-6.5 - Updates disabled
C6.6-base CentOS-6.6 - Base disabled
C6.6-centosplus CentOS-6.6 - CentOSPlus disabled
C6.6-contrib CentOS-6.6 - Contrib disabled
C6.6-extras CentOS-6.6 - Extras disabled
C6.6-updates CentOS-6.6 - Updates disabled
C6.7-base CentOS-6.7 - Base disabled
C6.7-centosplus CentOS-6.7 - CentOSPlus disabled
C6.7-contrib CentOS-6.7 - Contrib disabled
C6.7-extras CentOS-6.7 - Extras disabled
C6.7-updates CentOS-6.7 - Updates disabled
C6.8-base CentOS-6.8 - Base disabled
C6.8-centosplus CentOS-6.8 - CentOSPlus disabled
C6.8-contrib CentOS-6.8 - Contrib disabled
C6.8-extras CentOS-6.8 - Extras disabled
C6.8-updates CentOS-6.8 - Updates disabled
C6.9-base CentOS-6.9 - Base disabled
C6.9-centosplus CentOS-6.9 - CentOSPlus disabled
C6.9-contrib CentOS-6.9 - Contrib disabled
C6.9-extras CentOS-6.9 - Extras disabled
C6.9-updates CentOS-6.9 - Updates disabled
base CentOS-6 - Base enabled: 6,712+1
base-debuginfo CentOS-6 - Debuginfo disabled
c6-media CentOS-6 - Media disabled
centosplus CentOS-6 - Plus disabled
contrib CentOS-6 - Contrib disabled
elrepo ELRepo.org Community Enterprise Linux Re disabled
elrepo-extras ELRepo.org Community Enterprise Linux Ex disabled
elrepo-kernel ELRepo.org Community Enterprise Linux Ke enabled: 13
elrepo-testing ELRepo.org Community Enterprise Linux Te disabled
epel Extra Packages for Enterprise Linux 6 - disabled
epel-debuginfo Extra Packages for Enterprise Linux 6 - disabled
epel-source Extra Packages for Enterprise Linux 6 - disabled
epel-testing Extra Packages for Enterprise Linux 6 - disabled
epel-testing-debuginfo Extra Packages for Enterprise Linux 6 - disabled
epel-testing-source Extra Packages for Enterprise Linux 6 - disabled
extras CentOS-6 - Extras enabled: 46
fasttrack CentOS-6 - fasttrack disabled
updates CentOS-6 - Updates enabled: 455+8
repolist: 7,226
Exit code: 0
我可以使用“yum install gcc”，而且效果很好。
【问题讨论】：
-
R packages are available from the EPEL repositories。你在你的 CentOS 机器上启用了 EPEL repos 吗？
sudo yum install epel-release?然后使用sudo yum install R重试。 -
谢谢。我试过了，还是失败了。
-
是的，我相信这就是问题所在。尝试使用
yum-config-manager --enable epel启用；之后，sudo yum install R应该会找到 R。 -
@MauritsEvers 谢谢。按照你的建议解决了。