Making gmirror metadata cooperate with gpt metadata

[RW]

On Sun, 7 Feb 2021 08:50:52 -0500
Abner Gershon wrote:


> The reason this is currently impossible is due to GPT and gmirror both
> trying to store metadata in the last disk sector.

I don't know whether GPT with gmirror is a special case, but
generally when something uses the last sector for metadata it results
in a new device that's one sector smaller.