欧拉系统，yum不可用；服务器检查结果:***信息***您的授权码是无效的，请获得正确的授权码来注册大云Linux操作系统。您可以使用‘bclinux-license -g‘命令获得机器码

服务器检查结果:
***信息***您的授权码是无效的，请获得正确的授权码来注册大云linux操作系统。您可以使用'bclinux-license -g'命令获得机器码，然后与我们联系帮您产生订阅从而获得正确的授权码。
 

rpm -qa | grep license

rpm -e bclinux-license-manager-4.0-1.oe2203.bclinux.x86_64  ##卸载这个包

服务器检查结果:
***信息***您的授权码是无效的，请获得正确的授权码来注册大云Linux操作系统。您可以使用'bclinux-license -g'命令获得机器码，然后与我们联系帮您产生订阅从而获得正确的授权码。

安装 另一个yum源；

把之前/etc/yum.repos.d/目录中 .repo格式的文件，都重命名下如改为  .repo.bak

vi /etc/yum.repos.d/generic.repo

#generic-repos is licensed under the Mulan PSL v2.#You can use this software according to the terms and conditions of the Mulan PSL v2.#You may obtain a copy of Mulan PSL v2 at:#    Http://license.coscl.org.cn/MulanPSL2#THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR#IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR#PURPOSE.#See the Mulan PSL v2 for more details. [OS]name=OSbaseurl=https://arcHives.openeuler.openatom.cn/openEuler-21.09/OS/$basearch/enabled=1gpGCheck=1gpgkey=https://archives.openeuler.openatom.cn/openEuler-21.09/OS/$basearch/RPM-GPG-KEY-openEuler [everything]name=everythingbaseurl=https://archives.openeuler.openatom.cn/openEuler-21.09/everything/$basearch/enabled=1gpgcheck=1gpgkey=https://archives.openeuler.openatom.cn/openEuler-21.09/everything/$basearch/RPM-GPG-KEY-openEuler [EPOL]name=EPOLbaseurl=https://archives.openeuler.openatom.cn/openEuler-21.09/EPOL/main/$basearch/enabled=1gpgcheck=1gpgkey=https://archives.openeuler.openatom.cn/openEuler-21.09/OS/$basearch/RPM-GPG-KEY-openEuler [debuginfo]name=debuginfobaseurl=https://archives.openeuler.openatom.cn/openEuler-21.09/debuginfo/$basearch/enabled=1gpgcheck=1gpgkey=https://archives.openeuler.openatom.cn/openEuler-21.09/debuginfo/$basearch/RPM-GPG-KEY-openEuler [source]name=sourcebaseurl=https://archives.openeuler.openatom.cn/openEuler-21.09/source/enabled=1gpgcheck=1gpgkey=https://archives.openeuler.openatom.cn/openEuler-21.09/source/RPM-GPG-KEY-openEuler [update]name=updatebaseurl=https://archives.openeuler.openatom.cn/openEuler-21.09/update/$basearch/enabled=1gpgcheck=1gpgkey=https://archives.openeuler.openatom.cn/openEuler-21.09/OS/$basearch/RPM-GPG-KEY-openEuler

yum clean all

yum makecache

yumlist

来源地址：https://blog.csdn.net/wsyzxss/article/details/130590971