About JetPack4.3 installing ubuntu18.04 by default, how do I reinstall Ubuntu16.04

Recently I’ve been using TX2 and I’ve noticed that ubuntu18.04 is installed by default,But 16.04 is what I want, how should I uninstall 18.04 and reinstall ubuntu16.04

Hi @2801846674, JetPack 3.3.3 / L4T R28.4 was the last version to support Ubuntu 16.04. Later versions of JetPack-L4T moved to Ubuntu 18.04.

If you require Ubuntu 16.04, you could re-flash your TX2 with JetPack 3.3.3, but if possible it is recommended to migrate to Ubuntu 18.04 and a more recent JetPack version.

Thank you so much for your reply and advice. I think I’ve decided to refresh JetPack3.3.3. I want to make sure that the only thing in my TX2 after I refresh it is ubuntu16.04, right ?

Flash completely erases all previous eMMC content.