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Date: Mon, 02 Sep 2013 10:35:49 +0200
Subject: fsck does not mark as clean
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From: "Ronald Klop" <ronald-freebsd8@klop.yi.org>
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Hello,

I have a usb stick which I mounted async and than removed it (without  
writing anything). Of course its FS is marked dirty now.
Running fsck gives this:

# fsck_ufs -y /dev/da5s2
** /dev/da5s2
** Last Mounted on /jails/mailserver/mnt/blabla
** Phase 1 - Check Blocks and Sizes
** Phase 2 - Check Pathnames
** Phase 3 - Check Connectivity
** Phase 4 - Check Reference Counts
** Phase 5 - Check Cyl groups
13178 files, 255459 used, 698006 free (238 frags, 87221 blocks, 0.0%  
fragmentation)

***** FILE SYSTEM STILL DIRTY *****

***** PLEASE RERUN FSCK *****

#

How can I mark it as clean again? Fsck does not complain about specific  
problems, but it does not fix anything either.
NB: I'm running fsck on 9.2-STABLE/amd64 of Aug 5th.

Ronald.