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Re: Migrate Stretch to New UEFI Build?

On Thu, Jan 10, 2019 at 03:53:11PM -0800, Patrick Bartek wrote:
Plus, I
want to have a common-shared  /boot partition for possible future
upgrades or expansions.

This is a really bad idea, and will cause far more trouble than it can possibly save in the future. You do need one EFI partition per system, and you can have different directories there for different OSs.