gpart - how to point to the other disk?

[Garrett Cooper]

Hi FS folks,
    I'm currently looking at switching over bits of our existing
infrastructure from boot0cfg / fdisk to gpart, and one of the things
that not 100% clear is -- how do I get one disk to point to the other
one? I can do this today with boot0cfg [...] -s 5, but AFAICT gpart
bootcode should supersede this usage (or am I incorrect?).
Thanks,
-Garrett

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