How to Create Ubuntu 2 Go Live micro SD Card

Hi All,
I want to create a live Ubuntu 2 go same as we do use on desktop computer for my Rock 4SE, The reason behind this is OS shouldn’t be get corrupted in case of sudden power failure, any suggestion would be appreciated.

download or build armbian (ubuntu) and enable virtual read only via armbian-config or manually:
in case it doesn’t work.

Thank you for sharing this valuable reference, I love to try this method as well to enhance my knowledge in Ubuntu