检查源

确认外网链接

wget www.hiascend.com

如果能下载到网页html文件，类似以下回显，则表明服务器已成功连接外网。

检查源（Ubuntu系统）

请在root用户下执行如下命令检查源是否可用。

apt-get update

如果命令执行报错或者后续安装依赖时等待时间过长甚至报错，则参考如下方式解决：

• 检查网络是否连接或者把“/etc/apt/sources.list”文件中的源更换为可用的源或使用镜像源。
• 登录源链接，根据现场操作系统架构和版本，进入对应操作系统目录，单击打开“source.list”文件，将文件内源链接复制到服务器“/etc/apt/sources.list”文件中，再执行apt-get update命令。
• 如果执行apt-get update命令时，出现类似如下所示报错，则执行apt-get update --allow-unauthenticated命令。

  Err:1 https://repo.huaweicloud.com/docker-ce/linux/ubuntu focal InRelease  Temporary failure resolving 'repo.huaweicloud.com'
  Err:2 https://mirrors.huaweicloud.com/ubuntu-ports focal InRelease  Temporary failure resolving 'mirrors.huaweicloud.com'
  Err:3 https://mirrors.huaweicloud.com/ubuntu-ports focal-updates InRelease Temporary failure resolving 'mirrors.huaweicloud.com'
  Err:4 https://mirrors.huaweicloud.com/ubuntu-ports focal-security InRelease Temporary failure resolving 'mirrors.huaweicloud.com'
  Err:5 https://mirrors.huaweicloud.com/docker-ce/linux/ubuntu focal InRelease Temporary failure resolving 'mirrors.huaweicloud.com'
  Reading package lists... Done
  N: Ignoring file 'index.html' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
  W: Failed to fetch https://mirrors.huaweicloud.com/ubuntu-ports/dists/focal/InRelease  Temporary failure resolving 'mirrors.huaweicloud.com'
  W: Failed to fetch https://mirrors.huaweicloud.com/ubuntu-ports/dists/focal-updates/InRelease  Temporary failure resolving 'mirrors.huaweicloud.com'
  W: Failed to fetch https://mirrors.huaweicloud.com/ubuntu-ports/dists/focal-security/InRelease  Temporary failure resolving 'mirrors.huaweicloud.com'
  W: Failed to fetch https://mirrors.huaweicloud.com/docker-ce/linux/ubuntu/dists/focal/InRelease  Temporary failure resolving 'mirrors.huaweicloud.com'
  W: Failed to fetch https://repo.huaweicloud.com/docker-ce/linux/ubuntu/dists/focal/InRelease  Temporary failure resolving 'repo.huaweicloud.com'
  W: Some index files failed to download. They have been ignored, or old ones used instead.

检查源（CTyunOS 22.06）

请在root用户下执行如下命令检查源是否可用。

yum makecache

如果命令执行报错或者后续安装依赖时等待时间过长甚至报错，则参考如下方式解决：

• 检查网络是否连接或者把“/etc/yum.repos.d/ctyunos.repo”文件中的源更换为可用的源或使用镜像源。
• 登录源链接，根据现场操作系统架构和版本，进入对应操作系统目录，单击打开“source.repo”文件，将文件内源链接复制到服务器“/etc/yum.repos.d/ctyunos.repo”文件中，再执行yum makecache命令。