>> Can I inquire, while we're here, *why* a user-tunable cpg has vanished?
> Probably because the value read from the disklabel had a nasty habit
> of being completely wrong.

That's a reason to stop paying attention to the disklabel value, not a
reason to break -c.

> Why do you want to set cpg?

Personally, I like to set it to as large a value as it will let me, so
that as little space as possible is wasted on per-cg guff.  (In my
experience, yes, "wasted" is an appropriate term.  I can't remember the
last time I actually used any alternative[%] superblock aside from the
one in cg 0.)

[%] not not NOT "alternate", whatever fsck's author may have thought!

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