That’s great to hear, @ltrager! One point of clarity: our experience with MAAS, on very not-Dell hardware, was exactly as described by @georcon (minus all the “Service Tab” Dell-ness).
We have 6x ASRock B450M mini-ITX motherboards that report the same UUID during the “Commissioning” phase.
Interestingly, and perhaps an ironic bit of self-induced cargo-culting, when we figured out what was causing our issue with “MAAS + PXE + UEFI”, that was figured out after we had encountered the issue @georcon outlined and provided a “patch” for.
In other words, when we finally figured out things on our end such that MAAS was able to PXE our UEFI nodes without issue, we had already considered “applying @georcon’s patch” as a necessity - as our only experience with MAAS, up to that point, had included encountering duped UUIDs without their “patch”.
Now, in hindsight, we never tried MAAS without @georcon’s “patch” - even though we’ve definitely got our nodes PXE’ing UEFI now.
Does this help add some clarity? We would try removing @georcon’s patch and re-provisioning a node to see if it gets the “dupe” UUID (what we know as the UUID-that-can-only-be-used-once).