https://blog.csdn.net/weixin_45621658/article/details/110734514
原因:centos6的默认源在2012年-12月左右被官方搞掉了
下列是错误详情
Bash
[root@c8-20 ~]# yum makecache
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
Eg. Invalid release/repo/arch combination/
removing mirrorlist with no valid mirrors: /var/cache/yum/x86_64/6/base/mirrorlist.txt
Error: Cannot find a valid baseurl for repo: base
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或者
Bash
[root@li496-237 ~]# yum -y install unzip zip
Loaded plugins: fastestmirror
Setting up Install Process
Determining fastest mirrors
YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
Eg. Invalid release/repo/arch combination/
YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
Eg. Invalid release/repo/arch combination/
YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
Eg. Invalid release/repo/arch combination/
http://mirrors.linode.com/centos/6/os/x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - “The requested URL returned error: 404 Not Found”
Trying other mirror.
To address this issue please refer to the below knowledge base article
https://access.redhat.com/articles/1320623
If above article doesn’t help to resolve this issue please open a ticket with Red Hat Support.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify
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第一种方法:一键修复(一条一条执行即可):
一般执行了前3条命令就好了
Bash
sed -i “s|enabled=1|enabled=0|g” /etc/yum/pluginconf.d/fastestmirror.conf
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
curl -o /etc/yum.repos.d/CentOS-Base.repo https://www.xmpan.com/Centos-6-Vault-Aliyun.repo
yum clean all
yum makecache
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第二种方法:手动修复教程:
首先把fastestmirrors关了
Markup
#编辑
vi /etc/yum/pluginconf.d/fastestmirror.conf
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#修改
enable=0
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#或者执行以下命令
sed -i “s|enabled=1|enabled=0|g” /etc/yum/pluginconf.d/fastestmirror.conf
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先把之前的repo挪到备份,然后下面两个二选一
Markup
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
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替换为官方Vault源
Markup
curl -o /etc/yum.repos.d/CentOS-Base.repo https://www.xmpan.com/Centos-6-Vault-Official.repo
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替换为阿里云Vault镜像
Markup
curl -o /etc/yum.repos.d/CentOS-Base.repo https://www.xmpan.com/Centos-6-Vault-Aliyun.repo
Gedit报错
Gtk-WARNING **: cannot open display: 问题解决
这几天在ubutu上用vim一直出问题,网上找了很多解决方法都没有解决,然后朋友推荐用gedit文本编辑器,好吧,那就试试。
在root用户运行gedit时,提示出错
然后百度,说是因为:Xserver默认情况下不允许别的用户的图形程序的图形显示在当前屏幕上. 如果需要别的用户的图形显示在当前屏幕上, 则应以当前登陆的用户, 也就是切换身份前的用户执行如下命令。
当前登陆普通用户执行:xhost +