Boot failed when build from docker

[Marsman1996]

Hi,

I built Theseus using the Dockerfile from the update-docker brach d333d4b.
It generates theseus-x86_64.iso successfully.

However, when it fail to be booted by the QEMU

$ make run graphic=no
SeaBIOS (version 1.15.0-1)
Booting from DVD/CD...
Boot failed: Could not read from CDROM (code 0004)
Booting from Floppy...
Boot failed: could not read the boot disk

Booting from Hard Disk...
Boot failed: could not read the boot disk

No bootable device.

What should I do?

Thank you for any reply!