问题：ubuntu20.04 Jetson orin nx 下载时遇到问题Temporary failure resolving 'ports.ubuntu.com'
解决：
python
sudo bash -c 'echo "nameserver 8.8.8.8" > /etc/resolv.conf'
sudo bash -c 'echo "nameserver 8.8.4.4" >> /etc/resolv.conf'