更新文档

Docs/EulerOS更换华为源.md

@@ -0,0 +1,41 @@
+> 本文作者：丁辉
+
+# EulerOS更换华为源
+
+[官方文档](https://support.huaweicloud.com/csg_faq/csg_04_1209.html)
+
+1. 备份本地Yum源
+
+   ```bash
+   mkdir -p /etc/yum.repos.d/backup/
+   mv /etc/yum.repos.d/*.repo /etc/yum.repos.d/backup/
+   ```
+
+2. 编辑华为源文件
+
+   ```bash
+   vi /etc/yum.repos.d/EulerOS.repo
+   ```
+
+   内容如下
+
+   ```bash
+   [base]
+   name=EulerOS-2.0SP8 base
+   baseurl=http://repo.huaweicloud.com/euler/2.8/os/aarch64/
+   enabled=1
+   gpgcheck=1
+   gpgkey=http://repo.huaweicloud.com/euler/2.8/os/RPM-GPG-KEY-EulerOS
+   ```
+
+3. 删除缓存数据
+
+   ```bash
+   yum clean all
+   ```
+
+4. 创建元数据缓存
+
+   ```bash
+   yum makecache
+   ```