[TUHS] Question about BSD disklabel history
Grant Taylor via TUHS
tuhs at tuhs.org
Mon Jan 1 13:24:22 AEST 2024
On 12/31/23 20:22, Warner Losh wrote:
> It means you either use one set of non overlapping partitions or
> another set. They were setup in clever ways
>
> It's more like you can use two or three partitions with non overlapping
> sets that cover the whole disk.
...
> Think more of a limited number of ways to mix and match for greater
> flexibility w/o editing the tables.
>
> A silly example: a is first 2/3 of the disk. B is 2nd 2/3, c d and
> e are 1/3 each.
Okay.
This makes more sense. Pre-define overlapping partitions but only use
non-overlapping. Sort of like tool boxes that come with a bunch of
supports for dividers, but you can only put so many dividers in the
pre-defined spots, but contents between the dividers doesn't overlap.
Sort of like how many squares are in this bigger grid of dots that is
itself a big square.
> But ancient Unix didn’t have nested partitioning schemes like
> FreeBSD supports...
Understood and appreciated.
--
Grant. . . .
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