openEuler镜像源配置
没想到大陆的系统把镜像源放香港，大陆访问还慢如蜗牛，改成tuna源了。
/etc/yum.repos.d/：（自行替换系统版本）
#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=OS baseurl=https://mirrors.tuna.tsinghua.edu.cn/openeuler/openEuler-22.03-LTS-SP3/OS/$basearch/ metalink=https://mirrors.openeuler.org/metalink?repo=$releasever&arch=source metadata_expire=1h enabled=1 gpgcheck=0 [everything] name=everything baseurl=https://mirrors.tuna.tsinghua.edu.cn/openeuler/openEuler-22.03-LTS-SP3/everything/$basearch/ enabled=1 gpgcheck=0 [EPOL] name=EPOL baseurl=https://mirrors.tuna.tsinghua.edu.cn/openeuler/openEuler-22.03-LTS-SP3/EPOL/main/$basearch/ enabled=1 gpgcheck=0 [debuginfo] name=debuginfo baseurl=https://mirrors.tuna.tsinghua.edu.cn/openeuler/openEuler-22.03-LTS-SP3/debuginfo/$basearch/ enabled=1 gpgcheck=0 [source] name=source baseurl=https://mirrors.tuna.tsinghua.edu.cn/openeuler/openEuler-22.03-LTS-SP3/source/ enabled=1 gpgcheck=0 [update] name=update baseurl=https://mirrors.tuna.tsinghua.edu.cn/openeuler/openEuler-22.03-LTS-SP3/update/$basearch/ enabled=1 gpgcheck=0 [update-source] name=update-source baseurl=https://mirrors.tuna.tsinghua.edu.cn/openeuler/openEuler-22.03-LTS-SP3/update/source/ enabled=1 gpgcheck=0
/etc/dnf/dnf.conf：
直接配置/etc/dnf/dnf.conf文件中的“repository”部分
下面是[repository]部分的一个最小配置示例：
[repository] name=repository_name baseurl=repository_url
说明：
openEuler提供在线的镜像源，地址：https://repo.openeuler.org/。以 openEuler 22.03 LTS SP3 的aarch64版本为例，baseurl可配置为https://repo.openeuler.org/openEuler-22.03-LTS-SP3/OS/aarch64/。
最后重新缓存：
dnf clean all&&dnf makecache&&yum clean all&&yum makecache
