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Date: Mon, 4 Jun 2012 09:54:59 -0500
From: "Ryan C. Underwood" <nemesis-lists@icequake.net>
To: Maxim Mikheev <mikhmv@gmail.com>
Cc: Arne Jansen <sensille@gmx.net>, Liu Bo <liubo2009@cn.fujitsu.com>,
        linux-btrfs@vger.kernel.org, Jan Schmidt <list.btrfs@jan-o-sch.net>
Subject: Re: Help with data recovering
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On Mon, Jun 04, 2012 at 07:43:40AM -0400, Maxim Mikheev wrote:
> alternate copy you wish to use. In the following example we ask for
> using the superblock copy #2 of /dev/sda7:
>=20
> # ./btrfsck -s 2 /dev/sd7
>=20
> -----------------------------------------
> but it gave me:
> $ sudo btrfsck -s 2 /dev/sdb
> btrfsck: invalid option -- 's'
> usage: btrfsck dev
> Btrfs Btrfs v0.19
>=20
> What can I do more?

I have found that due to an error in getopt_long() usage, btrfsck does
not accept the short-form option.  Use --super instead.

--=20
Ryan C. Underwood, <nemesis@icequake.net>

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