Are there any 64-bit Ubuntu ARM images? All I can find is a 64-bit x86 image and a 32-bit ARM image, but I'd like to take advantage of the Raspberry Pi 3's 64 bit architecture. This article implies I might be out of luck. Is there any easy way to accomplish this?
The foundation kernel has been ported by third parties to 64 Bit , but only by breaking HW acceleration, camera support , WiFi and Bluetooth.
Whether Canonical is interested to use this completely custom downstream kernel is an question only they themselves can answer.
Don't forget that most Raspberry Ubuntu images don't seem to be maintained and supported by Canonical at all , but by community efforts.
Of course most download pages are not thinking about AArch64 when they write "64-bit" , even Canonicals main "64-bit" download does not work on the Pi directly.