初入职场，在给RedHat Linux安装环境的时候遇到这么个问题。
参考：http://www.linuxidc.com/Linux/2017-08/146548.htm
[root@localhost ~]# yum -y install gcc
Loaded plugins: katello, product-id, security, subscription-manager
Updating certificate-based repositories.
Unable to read consumer identity
Setting up Install Process
No package gcc available.
Nothing to do
对于习惯使用CentOS的人来说,不能使用这个命令,简直是种折磨
解决过程:
1.给linux redhat安装Centos镜像
[root@localhost~]# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
--2015-10-09 14:33:10-- http://mirrors.163.com/.help/CentOS6-Base-163.repo
Resolving mirrors.163.com... 123.58.173.186,123.58.173.185
Connecting to mirrors.163.com|123.58.173.186|:80...connected.
HTTP request sent, awaiting response... 200 OK
Length: 2341 (2.3K) [application/octet-stream]
Saving to: `CentOS6-Base-163.repo'
100%2,341 --.-K/s in 0s
2015-10-09 14:33:22 (108 MB/s) -`CentOS6-Base-163.repo' saved [2341/2341]
2.修改repo文件
[root@localhost~]# mv CentOS6-Base-163.repo /etc/yum.repos.d/
*** 把$releasever替换成6
[root@localhost yum.repos.d]# sed -i 's#$releasever#6#g' ./CentOS6-Base-163.repo
3.清除所有缓存
[root@localhost yum.repos.d]# yum clean all
Loaded plugins: katello, product-id, security, subscription-manager
Updating certificate-based repositories.
Unable to read consumer identity
Cleaning up Everything
4.获取yum列表
[root@localhost yum.repos.d]# yum makecache
Loaded plugins: katello, product-id, security, subscription-manager
Updating certificate-based repositories.
Unable to read consumer identity
addons | 1.9 kB 00:00
addons/filelists_db | 570 B 00:00
........
........
base 3667/3667
base 3667/3667
base 3667/3667
Metadata Cache Created
5.搜索安装
[root@localhost ~]# yum search gcc |grep --color '^gcc'
gcc.x86_64 : Various compilers (C, C++, Objective-C, Java, ...)
gcc-c++.x86_64 : C++ support for GCC
gcc-gfortran.x86_64 : Fortran 95 support
gcc-gnat.x86_64 : Ada 95 support for GCC
gcc-java.x86_64 : Java support for GCC
gcc-objc++.x86_64 : Objective-C++ support for GCC
gcc-objc.x86_64 : Objective-C support for GCC
gcc44.x86_64 : GNU Compiler Collection version 4.4
gcc44-c++.x86_64 : C++ support for GCC version 4.4
gcc44-gfortran.x86_64 : Fortran support for GCC 4.4
6.安装gcc
[root@localhost yum.repos.d]# yum -y install gcc
至此,gcc安装完成,并且对于其他的编译环境也可以使用yum安装了。
Linux升级GCC 4.8.1清晰简明教程(Ubuntu 12.04 64位版为例) http://www.linuxidc.com/Linux/2014-04/99583.htm
Ubuntu 14.04 LST安装GCC 4.1.2 http://www.linuxidc.com/Linux/2016-06/132040.htm
Ubuntu下Vim+GCC+GDB安装及使用 http://www.linuxidc.com/Linux/2013-01/78159.htm
Ubuntu下两个GCC版本切换 http://www.linuxidc.com/Linux/2012-10/72284.htm
CentOS6.5升级手动安装GCC4.8.2 http://www.linuxidc.com/Linux/2015-01/112595.htm
Ubuntu升级GCC版本 http://www.linuxidc.com/Linux/2016-11/136840.htm
CentOS7环境下在/离线安装GCC与GCC-C++ http://www.linuxidc.com/Linux/2017-03/142319.htm
Ubuntu 16.04 LTS 降级安装GCC 4.8 http://www.linuxidc.com/Linux/2017-03/142299.htm
本文永久更新链接地址：http://www.linuxidc.com/Linux/2017-08/146549.htm
转自：https://www.linuxidc.com/Linux/2017-08/146549.htm
补充：最后还是报错，缺少依赖
最终方案见下图：
Pre-Built Packages for Mainline version
To set up the yum repository for RHEL/CentOS, create the file named /etc/yum.repos.d/nginx.repo with the following contents:
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/mainline/OS/OSRELEASE/$basearch/
gpgcheck=0
enabled=1
Replace “OS” with “rhel” or “centos”, depending on the distribution used, and “OSRELEASE” with “6” or “7”, for 6.x or 7.x versions, respectively.
在 /etc/yum.repos.d/ 目录下新建 nginx.repo 文件 内容如下：
[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/mainline/rhel/7/$basearch/
gpgcheck=0
enabled=1
然后 执行 yum install nginx 命令
nginx 就安装好了
安装在 /etc/nginx 下 只需要修改配置文件就好了