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Date: Tue, 6 Jan 2015 12:51:00 -0700 (MST)
From: Warren Block <wblock@wonkity.com>
To: Chris H <bsd-lists@bsdforge.com>
Subject: Re: I need some swap partion help on new 10.1 install
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On Tue, 6 Jan 2015, Chris H wrote:

> I imagine this has probably been addressed/responded to, but...
> For the sake of confusion;
> MBR - so-called "legacy" is probably the version you are most
> accustomed to seeing:
> /dev/adaNpN

Actually, /dev/adaNsNX, where "s" is for "slice" and X is for the BSD 
partition letter, like /dev/ada0s1a for the first MBR slice and the 
first BSD partition on that slice.  Only GPT partitioning shows the "p".

> GPT gpart(8)/glabal(8) is the newer alternative. It creates more
> *human readable* names, eg;
> /gpt/my-bright-shiny-root
> /gpt/my-new-usr
> /gpt/my-yadda-yadda-yadda

There is a limit on GPT label length.  The spec says 72 bytes (!), but 
FreeBSD might limit that.  Some characters are not allowed.