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问题：
[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
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