First of all, apologies if this has been asked before, I did search the forums and couldn't find anything related...
My NanoPi M4V2 has an NVME still running Debian Buster and I have been delaying upgrading/flashing as I expect this to be not that trivial...
My understanding is that the recommended upgrade path is to reflash the SD-card and start over, which is fine with me.
However, I do want to ensure it will then again boot from the NVME drive as it currently does!
My question is if I can do that directly (flash SD, boot from it, and change boot to NVME) and I will have all the previous data on the NVME *OR* should I backup all the data in the NVME format the drive, and then restore the files I care about after reflashing?
Thanks in advance!
