update-grub within qemu overwrote my storage boot

I don't know how but, it seems something fishy happened on my computer. I was testing GNU/Hurd. Built the rumpkernel and hurd and installed it to the image and somehow after updating grub and imaging the nvme disk on my laptop I found it overwrote the grub boot record on my external nvme instead of the image. It seems that booting what was originally my trisquel nvme shows a grub menu with GNU/HURD and it goes nowhere saying it is trying to load hurd with no console.

I was trying to test nvme on HURD, so I had tried this at least 2 times. The first time went fine, nothing booted but it left my main nvme alone. The second time is when it got weird.

I have been backing up my files on the main nvme storage disk to this other computer.

If I understand correctly, qemu only allows the guest to view the device files on the guest and not overwrite what is on the host.