先有华为后有天，遥遥领先！

1 确定使用的OS版本

# cat /etc/os-release 
NAME="openEuler"
VERSION="22.03 (LTS-SP3)"
ID="openEuler"
VERSION_ID="22.03"
PRETTY_NAME="openEuler 22.03 (LTS-SP3)"
ANSI_COLOR="0;31"

看PRETTY_NAME="openEuler 22.03 (LTS-SP3)"这一行，是完整的操作系统版本

进入社区论坛：【汇总贴】openEuler常用repo源 - 迁移 - openEuler 论坛

2 根据自己的版本找到对应yum源 

3 找到源配置文件 

cd /etc/yum.repos.d/

谁说这是CentOS？发律师函！

我下载好的os没有vim编辑器，先安装好vim，按说用原来的源也不慢

yum install vim -y

把原来的源备份一下

mv openEuler.repo openEuler.repo.bak

创建新文件，填上以下源内容

vim openEuler.repo

测试

yum update

华为源

[openEuler-everything]
name=openEuler-everything
baseurl=http://repo.huaweicloud.com/openeuler/openEuler-22.03-LTS-SP3/everything/x86_64/
enabled=1
gpgcheck=0
gpgkey=http://repo.huaweicloud.com/openeuler/openEuler-22.03-LTS-SP3/everything/x86_64/RPM-GPG-KEY-openEuler

[openEuler-EPOL]
name=openEuler-epol
baseurl=http://repo.huaweicloud.com/openeuler/openEuler-22.03-LTS-SP3/EPOL/main/x86_64/
enabled=1
gpgcheck=0

[openEuler-update]
name=openEuler-update
baseurl=http://repo.huaweicloud.com/openeuler/openEuler-22.03-LTS-SP3/update/x86_64/
enabled=1
gpgcheck=0

openEuler源

[openEuler-everything]
name=openEuler-everything
baseurl=http://repo.openeuler.org/openEuler-22.03-LTS-SP3/everything/x86_64/
enabled=1
gpgcheck=0
gpgkey=http://repo.openeuler.org/openEuler-22.03-LTS-SP3/everything/x86_64/RPM-GPG-KEY-openEuler

[openEuler-EPOL]
name=openEuler-epol
baseurl=http://repo.openeuler.org/openEuler-22.03-LTS-SP3/EPOL/main/x86_64/
enabled=1
gpgcheck=0

[openEuler-update]
name=openEuler-update
baseurl=http://repo.openeuler.org/openEuler-22.03-LTS-SP3/update/x86_64/
enabled=1
gpgcheck=0

清华源

[openEuler-everything]
name=openEuler-everything
baseurl=http://mirrors.tuna.tsinghua.edu.cn/openeuler/openEuler-22.03-LTS-SP3/everything/x86_64/
enabled=1
gpgcheck=0
gpgkey=http://mirrors.tuna.tsinghua.edu.cn/openeuler/openEuler-22.03-LTS-SP3/everything/x86_64/RPM-GPG-KEY-openEuler

[openEuler-EPOL]
name=openEuler-epol
baseurl=http://mirrors.tuna.tsinghua.edu.cn/openeuler/openEuler-22.03-LTS-SP3/EPOL/main/x86_64/
enabled=1
gpgcheck=0

[openEuler-update]
name=openEuler-update
baseurl=http://mirrors.tuna.tsinghua.edu.cn/openeuler/openEuler-22.03-LTS-SP3/update/x86_64/
enabled=1
gpgcheck=0