JonathanM

Different mouse and keyboard?

They won't. https://forums.unraid.net/topic/35866-unraid-6-nerdpack-cli-tools-iftop-iotop-screen-kbd-etc/ read the recommended post and proceed from there.

Running Unraid as a VM is not supported. It's not forbidden, and there is a section on the forum for people running it as a VM so they can compare notes and help each other, but if you have an issue that you need support on you will need to boot bare metal and reproduce the issue so as to prove it's not caused by some setting in your hypervisor.

I'm sure you know this, but your quote sums up why nerdpack is gone. Nobody stepped up to keep all the huge number of necessary ducks in a row.

Do you have VM's?

Disable the VM service in settings, delete the libvirt.img file, when you enable the VM service it should be recreated.

Are you sure the mappings are correct for those locations?

/etc/libvirt/qemu or if you can still edit the VM's just switch to advanced view.

If you can still access the XML's you can save that to a text document before you delete the libvirt.img file. That way you can paste back the configs exactly as they were.

Take a look at the syslog after mounting the device and see what the mount line says. If that's above your pay grade, attach diagnostics collected after the drive is mounted to your next post in this thread.

Sounds like the libvirt.img is still corrupted.

Did you install the 2nd part of the Unassigned Devices plugin?

What drive letter / paths are allocated to them?

Why not?

Your VM disks should still be ok, but you will need to recreate the configurations to the best of your ability and point to the existing vdisks. The libvirt.img holds the XML configuration files as well as any other customizations and settings like autostart and such. How many VM's?

Doesn't mean anything. Quality control on pc parts is pretty much on the end user, there is almost zero testing done beyond "does it turn on" on the production line.

You can just remove the section of xml that you pictured. Read this thread for more discussion.

As long as the source is still there, whatever works for you. rsync would be my choice, binary verify after copy is a must when doing things like this. I've seen many cases over the years where people thought moving the data was the best option and ended up with corrupt data and no way to recover or verify.

Please tell me you actually meant to say copy, not move.

How do you know? Most times it's communication failures, multiple drives going bad at once is rare unless something physical happened to both of them, like the entire server getting dropped.

What brand and model USB stick?

File system overhead.

This. You can attach as many additional drives as you want after the array has started, but the array will NOT start if the number of license limit devices are exceeded. Virtual devices don't count. Why? All you really need to get started is the USB stick to set up a trial Unraid install, and a single drive that can be erased and used as Disk1 in the array. As long as you don't assign any of your current drives to Unraid, it won't touch them.

If this rig is running unattended I highly recommend upgrading to a normal CPU cooler that doesn't rely on pumping liquid to keep the CPU from overheating. The worst that happens when a normal heatsink and fan combo quits is slightly elevated temperatures, slowly ramping up as the convection air keeps passing over the heavy block of copper and aluminum fins, and the system fans that are still running keep the box from melting down. Worst case scenario with liquid cooling is ruined circuit boards below where the liquid leaked accompanied by a rapid overheating. Desktop gaming rigs that are always within reach are great for liquid cooling, servers not so much.

Newer generations typically improve a little bit each time on the power per unit processed, even if the overall speed isn't that different. So for a given processing task, newer generations of hardware will use less electricity. If you don't pay anything for power, then the point is moot. If you have an electric bill each month, keep in mind the ongoing energy cost vs. the purchase price of a newer CPU and board. A i3-12100 CPU benchmarks almost three times the speed of a i5-7400, while consuming less power. Even the Pentium Gold G7400 has a faster benchmark, and it uses much less electricity.