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Date: Fri, 02 Jan 2015 15:33:46 +0300
From: Boris Samorodov <bsam@passap.ru>
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To: Polytropon <freebsd@edvax.de>, 
 Odhiambo Washington <odhiambo@gmail.com>
Subject: Re: Backing Up a journaled FS
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29.12.2014 12:33, Polytropon пишет:

> Note that disabling the journaling option also requires
> that the partition is _not_ in use, which means, it is
> unmounted; see "man tunefs" for details.

>From TUNEFS(8):
-----
The tunefs utility cannot
     be run on an active file system.  To change an active file system, it
     must be downgraded to read-only or unmounted.
-----

I.e. read-only is enough and it really works (tested at 10.1-i386 a few
days ago).

-- 
WBR, Boris Samorodov (bsam)
FreeBSD Committer, http://www.FreeBSD.org The Power To Serve