"No bootable device found" After completing qubes os install

User Support
11

Do you have an USB stick with an alternate/recovery/live OS? - and can you boot from that?

If so, could you try and boot and share the output of:

fdisk -l /dev/sda
fdisk -l /dev/sdb
fdisk -l /dev/nvme0n1

?

– is your issue something like in:

?