The problem with install redhat linux

博主首次使用开源免费系统,决定安装Linux虚拟PC。但在使用“start - x”命令时,图形界面无法显示,且已尝试三次仍未解决。

It's the first time i use this system.As i know,it's for free and OPEN SOURCE.That's great..

So ,i decide to install virtual pc for linux.

however,There is something unthinkable.When i user "start-x",no graphic come on.

i have try three times.

[root@node-a openstack-offline]# cat /etc/redhat-release CentOS Linux release 7.9.2009 (Core) [root@node-a openstack-offline]# # 输出:CentOS Linux release 7.x (Core) [root@node-a openstack-offline]# sudo yum install -y wget yum-utils createrepo Loaded plugins: fastestmirror Repository epel-archive is listed more than once in the configuration Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com base | 3.6 kB 00:00:00 https://mirrors.tuna.tsinghua.edu.cn/delorean/OpenStack-Queens/repodata/repomd.xml: [Errno 14] HTTPS Error 404 - Not Found Trying other mirror. To address this issue please refer to the below wiki article https://wiki.centos.org/yum-errors If above article doesn't help to resolve this issue please use https://bugs.centos.org/. One of the configured repositories failed (Delorean OpenStack Queens (Promoted)), 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=delorean ... 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 delorean or subscription-manager repos --disable=delorean 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=delorean.skip_if_unavailable=true failure: repodata/repomd.xml from delorean: [Errno 256] No more mirrors to try. https://mirrors.tuna.tsinghua.edu.cn/delorean/OpenStack-Queens/repodata/repomd.xml: [Errno 14] HTTPS Error 404 - Not Found [root@node-a openstack-offline]#
10-03
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