From: "Helmut Hullen" <Hullen@t-online.de>
To: linux-btrfs@vger.kernel.org
Subject: Re: BTRFS thinks that a device is mounted
Date: 21 Oct 2011 03:33:00 +0200 [thread overview]
Message-ID: <BwGkwFbT1uB@helmut.hullen.de> (raw)
In-Reply-To: <a46ac41f14ba1581cb554a0f26463859.squirrel@webmail01.edunet.gr>
Hallo, Nikos,
Du meintest am 21.10.11:
> What went wrong in the following scenario? BTRFS thinks that a device
> is mounted while it is not.
[...]
> btrfs device scan /dev/sdh
> Scanning for Btrfs filesystems in '/dev/sdh'
> ERROR: unable to scan the device '/dev/sdh' - Invalid argument
> ## Comment: OK, we give up. Try to recreate btrfs from scratch
> mkfs.btrfs -m raid1 -d raid1 /dev/sdg /dev/sdh /dev/sdl
> WARNING! - Btrfs Btrfs v0.19 IS EXPERIMENTAL
> WARNING! - see http://btrfs.wiki.kernel.org before using
> /dev/sdh is mounted
> ## Comment: Of course /dev/sdh is not mounted.
> mount |grep /dev/sdh
> root@lxc:~#
Two days ago I've seen a perhaps similar problem with an ext3 disk:
Connected via USB
running fsck (with some options)
mount /dev/$disk $mountpoint
also told that the disk was mounted (it wasn't really).
Maybe some other operation (like - in this case - fsck) on/with the disk
leads to this wrong message.
Viele Gruesse!
Helmut
next prev parent reply other threads:[~2011-10-21 1:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-20 21:39 BTRFS thinks that a device is mounted Nikos Voutsinas
2011-10-21 1:33 ` Helmut Hullen [this message]
2011-10-21 10:10 ` Stephane CHAZELAS
2011-10-22 13:57 ` Nikos Voutsinas
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