PXE with UEFI should be easy, right UEFI PXE setup on Ubuntu simplified using scripts, TFTP, DHCP, NFS, HTTP, GRUB, Syslinux, resolving loader handoffs and configuration pitfalls.
Expanding Ubuntu Disk Image I don't know how many times I have to look this up, but if I'm ever in Iceland, gotta personally thank Expand Ubuntu disk after Hyper-V Quick Create - Anton Karl IngasonSimple steps for resizing (growing) the virtual drive of an Ubuntu virtual machine created my