[TOC] ## Some index files failed to download. They have been ignored, or old ones used instead. 修改/etc/resolv.conf文件，增加如下一行： ``` nameserver=8.8.8.8 ``` 更新密钥 ``` curl -s -L https://nvidia.github.io/libnvidia-container/gpgkey | \ apt-key add - ``` 然后依次执行一下命令 ``` sudo rm -rf /var/lib/apt/lists sudo mkdir -p /var/lib/apt/lists/partial sudo apt-get clean sudo apt-get update sudo apt-get update -o Acquire::No-Cache=True sudo apt-get update -o Acquire::BrokenProxe=True ``` 还有一个方法是更换源：[更换源](%E6%9B%B4%E6%8D%A2%E6%BA%90.md) ## apt-get update 公钥不可用 使用apt-key adv 更新公钥 ``` apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 3B4FE6ACC0B21F32 ```