Re: GPT BIOS boot

[Robert Elz <kre%munnari.OZ.AU@localhost>]

    Date:        Fri, 31 May 2019 12:02:21 +0200
    From:        manu%netbsd.org@localhost (Emmanuel Dreyfus)
    Message-ID:  <1o8fw11.vifpmjr39i79M%manu%netbsd.org@localhost>

  | You mean I edit the disklabel, change bytes/sector from 512 to 4096, and
  | recompute everything with the new block size?

Well, you could, but I doubt that would work - it isn't wise to lie
to the system...   But it works with drives that really have 4K sectors.

  | Will that work with an existing filesystem (without the need to run
  | newfs again)?

The only chance would be if you have fragments at least 4KB big.   But
the filesystems always measure blocks in units of 512 bytes (well, FFS does).

kre