[Bug 211361] suggested boot partition size is too small, bsdinstall creates unaligned partitions

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Mon Aug 8 17:52:20 UTC 2016


--- Comment #15 from Nathan Whitehorn <nwhitehorn at FreeBSD.org> ---
(In reply to Dag-Erling Smørgrav from comment #14)

gpart(8) does know about those things and will align to stripesize -- the logic
in the installer is copied from the userland code in geom_part.c. And the
installer doesn't know about CHS. The stripe size, in geom, is the canonical
mechanism for recommending IO alignment. Why do we want to break that?

The only partitioning policy choices the installer makes are those involved in
making the system bootable on the given platform (where the bootloader goes, in
particular, and which partition schemes are bootable). It tries *very* hard not
to do anything else and, in particular, not to second guess defaults. I would
like to keep it that way.

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