Qubes 4.2 installation not working when SSD is moved to another identical PC

[magnus]

Since Qubes version 3, I have been able to install the system on an SSD and move this SSD between almost identical computers. Now, when I use version 4.2, it works fine in the same computer, but if I move the SSD to an almost identical computer, the BIOS does not recognize the boot loader on the SSD. Any suggestion how to move forward?

[apparatus]

If you’ve installed Qubes OS with UEFI then check this:

Boot device not recognized / troubleshooting instructions question

Did you try to mount /dev/nvme0n1p1? Is it empty? If it’s not empty then you can try to add EFI boot menu entry using this command in Ubuntu or in Qubes OS installer shell: efibootmgr -v -c -u -L "Qubes OS" -l /EFI/qubes/grubx64.efi -d /dev/nvme0n1 -p 1 If it won’t work then you can try this: