CentOS7配置错误，yum命令不能用，求好心人解答

Posted 2023-05-15

[root@localhost /]# yum -y update已加载插件：fastestmirrorLoading mirror speeds from cached hostfileThere are no enabled repos. Run "yum repolist all" to see the repos you have. To enable Red Hat Subscription Management repositories: subscription-manager repos --enable <repo> To enable custom repositories: yum-config-manager --enable <repo>

CentOS7配置错误，yum命令不能用是设置错误造成的，解决方法为：

1、更新系统的时候，使用yum update提示以下错误。

2、出现这个问题，需要先检查一下yum的检查。yum repolist。

3、根据提示yum提示错误:rpmdb BDB0113 Thread/process 进入/var/lib/rpm。

4、查看/var/lib/rpm目录下面，列出删除__db*文件。

5、接着我们再次重构yum软件，命令 rpm --rebuilddb。

6、重构之后，再次清除yum软件。 yum repolist 或直接yum安装测试。

7、yum repolist更新yum的软件链。

参考技术A yum文件镜像配置
[root@HXG-125 ~]# more /etc/yum.repos.d/rhel-beta.repo
[rhel-beta]
name=rhel-betal
baseurl=file:///mnt/
enabled=1
gpgcheck=0
挂载镜像文件到 /mnt 下
[root@HXG-125 ~]# mount /dev/sr0 /mnt 参考技术B 清空下/etc/resolc.conf
看下/etc/yum.repos.d的源配置

CentOS下升级系统 yum update命令 自己配置更新源

我在CentOS系统下用yum update命令不能更新，提示： Cannot retrieve repository metadata (repomd.xml) for repository: update. Please verify its path and try again 这个错误。在网上查了下需要自己配置更新源，请问如何配置?最好详细点,附带更新源.谢谢.

参考技术A ps**************中国科技大学(还可以)***************

[教育网源]
上海交通大学：http://ftp.sjtu.edu.cn/centos/
清华大学：http://mirror.lib.tsinghua.edu.cn/centos/
中国科技大学：http://centos.ustc.edu.cn/centos/ （推荐，比较快）

[电信网源]
上海电信：http://mirrors.shlug.org/centos/
山东电信：http://mirrors.ta139.com/centos/
福建电信：http://mirror.be10.com/centos/

1.以root用户进入CentOS系统。
[root@xuxy ~]# cd /etc/yum.repos.d
2.备份repo
[root@xuxy yum.repos.d]# mv CentOS-Base.repo CentOS-Base.repo.bak
3.建立新的CentOS-Base.repo文件：（以CentOS 5.2为例）
[root@xuxy yum.repos.d]#vi CentOS-Base.repo
内容如下（以中国科技大学的yum源为例）：
# CentOS-Base.repo
#
# This file uses a new mirrorlist system developed by Lance Davis for CentOS.
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#

[base]
name=CentOS-$releasever - Base
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
baseurl=http://centos.ustc.edu.cn/centos/$releasever/os/$basearch/
gpgcheck=1
gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#released updates
[updates]
name=CentOS-$releasever - Updates
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
baseurl=http://centos.ustc.edu.cn/centos/$releasever/updates/$basearch/
gpgcheck=1
gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#packages used/produced in the build but not released
[addons]
name=CentOS-$releasever - Addons
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons
baseurl=http://centos.ustc.edu.cn/centos/$releasever/addons/$basearch/
gpgcheck=1
gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
baseurl=http://centos.ustc.edu.cn/centos/$releasever/extras/$basearch/
gpgcheck=1
gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
baseurl=http://centos.ustc.edu.cn/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://centos.ustc.edu.cn/centos/RPM-GPG-KEY-CentOS-5

（保存并退出:wq）

现在可以yum了。^_^本回答被提问者采纳