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Date: Sun, 8 Jul 2012 09:47:33 +0200 (CEST)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Matthias Apitz <guru@unixarea.de>
In-Reply-To: <20120708064451.GB2365@tinyCurrent>
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	Sun, 08 Jul 2012 09:47:34 +0200 (CEST)
Cc: freebsd-questions@freebsd.org
Subject: Re: df(1) and missing space in partition /dev/ada0p2
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> FreeBSD aurora-clone.Sisis.de 10.0-CURRENT FreeBSD 10.0-CURRENT #2 r235646M: Thu Jul  5 09:38:00 UTC 2012 root@aurora-clone.Sisis.de:/usr/obj/usr/src/sys/GENERIC  i386
> $ df -k
> Filesystem  1024-blocks     Used    Avail Capacity  Mounted on
> /dev/ada0p2    74130588 25389436 42810708    37%    /
> devfs                 1        1        0   100%    /dev
> linprocfs             4        4        0   100%    /compat/linux/proc
> /dev/md0         126492       24   116352     0%    /tmp
> $ echo '25389436+42810708' | bc
> 68200144


only one partition is mounted and created.

I don't have idea what installer do as i don't use it.

I recommend installing manually so you have full control of how partitions 
are laid out and using what partition table format.