stuner
I think when I messed it up, it worked when I tried switching to the proprietary drivers for the second time. I think you can try that without much risk.
In my case I ended up disabling Secure Boot anyway because it just got too annoying (a BIOS update breaking it was the final straw for me). The security benefit after you’ve enrolled a MOK seems dubious anyway. It would be nice if distros could ship signed kernels with the open-source Nvidia driver but I guess that’s not happening.
What kind of junk energy is there to harvest from a car (in meaningful amounts)? I guess breaking is the obvious answer, but that’s already covered by regenerative breaking. Most car-based energy harvesting systems seem to employ speedbumps that clearly take useful (kinetic) energy away from the car (probably at a very poor efficiency).
You can make this work using ext and Timeshift rsync. I have also opted to exclude /var/lib/flatpak/ because it’s quite large. With that, my 5 snapshots currently take up about 34 GB.
However, I would recommend backing up your deb applications/packages (typically installed under/usr), as those can be critical for your system.
No, they’re almost entirely unrelated. Almost all CPUs will idle close to 0 W (with correctly working drivers). The main idle power contribution comes from the mainboard and other devices (e.g. disks). The Mini PCs you mentioned should have a very low total idle power, probably below 10W.
Check out Wolfgang on YouTube, he has some great videos on the topic: https://youtu.be/Ppo6C_JhDHM
Did you perform a full shutdown of Windows (Windows doesn’t fully release the partition on a normal shutdown)?
I’ve also recently built my own NAS and I’ve gone through similar considerations. One of my mayor decisions was not to use btrfs because it’s not recommended for Raid Z1/Raid 5. With that, I landed on ZFS and TrueNAS Scale. Note that RAID expansion should be landing in both very soon.
Things with TrueNAS were pretty easy, very quick, and everything worked nicely. However, I noticed that it was constantly accessing the disks and preventing them from spinning down. I really wanted to keep the power consumption low (<20 W idle), so I eventually decided to just go with Vanilla Debian + ZFS. I can recommend that if you want to tinker with things yourself. Otherwise, I’d recommend TrueNAS Scale.
As for migration, you might be able to create a degraded pool initially, copy over the data, and add the parity disk last. Raid expansion would ofc also help there…
The driver should already be installed but there seems to be an issue with brltty registering the corresponding USB ID when they shouldn’t. You can probably fix it by following this guide: https://koen.vervloesem.eu/blog/how-to-stop-brltty-from-claiming-your-usb-uart-interface-on-linux/ (or this one: https://unix.stackexchange.com/a/670637)
Edit: Perhaps this has since been fixed in Mint 21 / Ubuntu 22.04.
This “new law” was passed more than a year ago… But, it’s still a step in the right direction.
Raindrop energy harvesting is a rubbish idea. The raindrops simply don’t have a meaningful amount of energy to begin with: https://news.ycombinator.com/item?id=36907674