We are having this exact problem with a regular PXE boot as well (not using Xen).
As mentioned by previous posters, 18.04 still works but 16.04 stopped working as soon as this bug was introduced.
We are having this exact problem with a regular PXE boot as well (not using Xen).
As mentioned by previous posters, 18.04 still works but 16.04 stopped working as soon as this bug was introduced.