I was able to boot with the package/patch in your PPA. root=PARTUUID=<PARTUUID>
$ cat /proc/cmdline BOOT_IMAGE=/EFI/BOOT/vmlinuz-4.3.0-8-generic boot=local earlycon=pl011,0x3ced1000 console=ttyAMA1 debug user_debug=31 loglevel=9 uefi_debug e1000e.IntMode=1 pci=pcie_bus_safe acpi=force cpuidle.off=1 usb-storage.delay_use=1 rootwait rw root=PARTUUID=81780AD9-068C-4A80-A795-56856973B8F9 rootfstype=ext4 ubuntu@bandera:~$
I was able to boot with the package/patch in your PPA. root=PARTUUID= <PARTUUID>
$ cat /proc/cmdline /EFI/BOOT/ vmlinuz- 4.3.0-8- generic boot=local earlycon= pl011,0x3ced100 0 console=ttyAMA1 debug user_debug=31 loglevel=9 uefi_debug e1000e.IntMode=1 pci=pcie_bus_safe acpi=force cpuidle.off=1 usb-storage. delay_use= 1 rootwait rw root=PARTUUID= 81780AD9- 068C-4A80- A795-56856973B8 F9 rootfstype=ext4
BOOT_IMAGE=
ubuntu@bandera:~$