亲测有效:虚拟机安装gcc,报错Could not retrieve mirrorlist http://mirrorlist.centos.org

网卡配置资料

原因:

网络问题

报错详情:

复制代码
 One of the configured repositories failed (未知),
 and yum doesn't have enough cached data to continue. At this point the only
 safe thing yum can do is fail. There are a few ways to work "fix" this:

     1. Contact the upstream for the repository and get them to fix the problem.

     2. Reconfigure the baseurl/etc. for the repository, to point to a working
        upstream. This is most often useful if you are using a newer
        distribution release than is supported by the repository (and the
        packages for the previous distribution release still work).

     3. Run the command with the repository temporarily disabled
            yum --disablerepo=<repoid> ...

     4. Disable the repository permanently, so yum won't use it by default. Yum
        will then just ignore the repository until you permanently enable it
        again or use --enablerepo for temporary usage:

            yum-config-manager --disable <repoid>
        or
            subscription-manager repos --disable=<repoid>

     5. Configure the failing repository to be skipped, if it is unavailable.
        Note that yum will try to contact the repo. when it runs most commands,
        so will have to try and fail each time (and thus. yum will be be much
        slower). If it is a very temporary problem though, this is often a nice
        compromise:

            yum-config-manager --save --setopt=<repoid>.skip_if_unavailable=true

Cannot find a valid baseurl for repo: base/7/x86_64

解决步骤:

1、修改虚拟机的网络连接模式为 NAT模式

2、右击桌面,打开终端

①首先查看网关配置文件名:

输入

ifconfig

②配置网卡信息:

vi /etc/sysconfig/network-scripts/ifcfg-ens32

两种方法:

点击键盘 I ,开始输入

第一种:自动配置

1、BOOTPROTO=dhcp(自动获取ip)

2、ONBOOT=yes(设置开机自启动)

ESC--》:wq

在终端输入

service network restart

重启网络服务

ping www.baidu.com

查看网络是否通,如图

第二种:手动配置(之前配置有用的,但重新做了一遍,又不行了。把大体思路记录下吧)

①主机cmd,输入:

ipconfig

找到所用的网的IP

BOOTPROTO= static (需手动配置)

ESC--》:wq

在终端输入

service network restart

重启网络服务

ping www.baidu.com

查看网络是否通,如图

验证

安装gcc

yum -y install gcc gcc-c++ autoconf pcre pcre-devel make automake

yum -y install wget httpd-tools vim

查看 gcc版本

gcc -v

输出以上信息,即为成功

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