I just got a Nano and my first job has been configuring Ubuntu the way I like (changing the desktop in particular) and getting VNC to work. This has actually taken a few days. I’m used to Raspberry Pi’s where everything is slower (CPU-wise) but more familiar. Anyway, I wanted to make a copy of the micro-SD card with my all my work on it, before I start making really big software additions that might screw things up. There are a few posts here about copying the SD card, but the info is diffuse. The partitions on the card threw me a few curves but I finally got it to work. In fact I’m writing this using the Nano and a card that’s a copy of my main card. For anyone who wants to make a copy here’s what I did:
- I used a linux computer (Linux Mint) for the steps.
- I used dd, i.e. “sudo dd if=/dev/mmcblk0 of=~/jetson4-29.img bs=4096 status=progress”. NOTE mmcblk0 may be different on your machine
- Then to create the card that is a copy: “sudo dd if=~/jetson4-29.img of=/dev/mmcblk0 bs=4096 status=progress.”
- I used a 32GB card for both the original and copy.
- The bs=4096 may or may not matter, and having read and write the same size may or may not matter, but did work for me.
- Note that you’re doing mmcblk0 not mmcblk0p1.
- PLEASE DON’T mess with using linux dd unless you read up on it and know what you are doing or you could destroy your system! You’ve been warned!
Anyway I hope this helps someone and saves them some time.
– Tim