From owner-freebsd-questions@FreeBSD.ORG  Mon Feb 28 11:24:31 2011
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 29806106564A
	for <freebsd-questions@freebsd.org>;
	Mon, 28 Feb 2011 11:24:31 +0000 (UTC)
	(envelope-from nr1c0re@gmail.com)
Received: from mail-pw0-f54.google.com (mail-pw0-f54.google.com
	[209.85.160.54])
	by mx1.freebsd.org (Postfix) with ESMTP id F0DCD8FC18
	for <freebsd-questions@freebsd.org>;
	Mon, 28 Feb 2011 11:24:30 +0000 (UTC)
Received: by pwj8 with SMTP id 8so876346pwj.13
	for <freebsd-questions@freebsd.org>;
	Mon, 28 Feb 2011 03:24:30 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=domainkey-signature:mime-version:in-reply-to:references:date
	:message-id:subject:from:to:cc:content-type
	:content-transfer-encoding;
	bh=YC4lAdssLO/TDNOGqmYY8bbfbWj+RjaW+A6cOuAKKb0=;
	b=PytKjaIin3erFKSSz9DraeQGOyJeg2fpEoVrF+asvmJHKW8Vi8zGuulcfurN0D6Lht
	ZfMceO23FgKUhhNmYCOGYMk6pCEdOM8riSYnKZYYV9tNBuU0nS46ezMnFsJxjyI32Nnf
	WZtJ/mtMpje4UJgw4k516H1/qo4h2IdDnk15g=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:cc:content-type:content-transfer-encoding;
	b=Xqk5srA9Qlx9t6YHa+Pe7QMctPGxr0FXOr05TX2Yp7USjMeSpMedPXY++56SyTyAEn
	1WCkbdy5TAwk4FRJMI4AcBSAi4MpJv3dQosfk+WHQA4ALCo8QcMnugF2bPJJ2i1kCGGF
	6MOzSSWhJy4+u/lzhtRCs2hCq1Got+X/g0mYo=
MIME-Version: 1.0
Received: by 10.142.9.9 with SMTP id 9mr3784456wfi.50.1298892270111; Mon, 28
	Feb 2011 03:24:30 -0800 (PST)
Received: by 10.142.50.16 with HTTP; Mon, 28 Feb 2011 03:24:30 -0800 (PST)
In-Reply-To: <4D25ACE6.2010703@infracaninophile.co.uk>
References: <AANLkTi=VPzjgviv2fkqv-JonQh24Cz20+iHxvQ5at4G4@mail.gmail.com>
	<4D25ACE6.2010703@infracaninophile.co.uk>
Date: Mon, 28 Feb 2011 14:24:30 +0300
Message-ID: <AANLkTikyiZD+O6BKCighmuyppo5j2NinzoJE04zW8sXB@mail.gmail.com>
From: c0re <nr1c0re@gmail.com>
To: Matthew Seaman <m.seaman@infracaninophile.co.uk>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Cc: FreeBSD <freebsd-questions@freebsd.org>
Subject: Re: / file system is full, but du does not show that it's full
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 28 Feb 2011 11:24:31 -0000

2011/1/6 Matthew Seaman <m.seaman@infracaninophile.co.uk>:
> On 06/01/2011 11:26, c0re wrote:
>> # df -h
>> Filesystem =A0 =A0 Size =A0 =A0Used =A0 Avail Capacity =A0Mounted on
>> /dev/ad0s1a =A0 =A0496M =A0 =A0466M =A0 -9.8M =A0 102% =A0 =A0/
>>
>> So it's full.
>>
>> But by du it's not appeared to be full
>>
>>
>> # du -hxd 1 /
>> 2.0K =A0 =A0/.snap
>> 512B =A0 =A0/dev
>> 2.0K =A0 =A0/tmp
>> 2.0K =A0 =A0/usr
>> 2.0K =A0 =A0/var
>> 1.9M =A0 =A0/etc
>> 2.0K =A0 =A0/cdrom
>> 2.0K =A0 =A0/dist
>> 1.0M =A0 =A0/bin
>> 131M =A0 =A0/boot
>> =A010M =A0 =A0/lib
>> 356K =A0 =A0/libexec
>> 2.0K =A0 =A0/media
>> =A012K =A0 =A0/mnt
>> 2.0K =A0 =A0/proc
>> 7.2M =A0 =A0/rescue
>> 296K =A0 =A0/root
>> 4.7M =A0 =A0/sbin
>> 4.0K =A0 =A0/lost+found
>> 157M =A0 =A0/
>>
>
> Do you have partitions mounted at /tmp, /usr, /var etc? =A0Does the outpu=
t
> of your du command change if you unmount those partitions?
> (It might be an idea to boot into a livefs CD or DVD given that du(1)
> lives in /usr/bin, so a bit tricky to unmount /usr and then run du)
>
> My guess is that you've at one time created files beneath what is
> usually a mount point. =A0Mounting the partition over them makes those
> files inaccessible, but they still take up space on the drive.
>
> =A0 =A0 =A0 =A0Cheers,
>
> =A0 =A0 =A0 =A0Matthew
>
> --
> Dr Matthew J Seaman MA, D.Phil. =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 7 Pri=
ory Courtyard
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =
=A0 =A0 =A0 =A0 =A0 =A0 =A0Flat 3
> PGP: http://www.infracaninophile.co.uk/pgpkey =A0 =A0 Ramsgate
> JID: matthew@infracaninophile.co.uk =A0 =A0 =A0 =A0 =A0 =A0 =A0 Kent, CT1=
1 9PW
>
>

At last I found time to check it.
Booted with frenzy life cd, mounted only / partition and saw trash
/var/spool. Deleted it and it solved problem.
But later was and idea to mount device of / (/dev/da0s1a) as /mnt/root
and just delete those files without need of livecd. It works in Linux.
But in freebsd i got

# mount /dev/da0s1a /mnt/root/
mount: /dev/da0s1a : Operation not permitted

So only single user mode or live cd could solve it.

Thanks Matthew for an idea!