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From: Qu Wenruo <quwenruo.btrfs@gmx.com>
To: evan d <forumscollective@gmail.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Two partitionless BTRFS drives no longer seen as containing BTRFS filesystem
Date: Sun, 7 Oct 2018 17:47:37 +0800	[thread overview]
Message-ID: <7ffc25c7-1442-99da-8600-add6b3ce2dd4@gmx.com> (raw)
In-Reply-To: <CAG__1a4_jPWJ2LcBQ2ubWeuXR3AWa4vS7vrV3Ysm-wFORddH7g@mail.gmail.com>


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On 2018/10/7 下午4:28, evan d wrote:
>>>> # dd if=/dev/sdb bs=1M of=last_chance.raw count=128 skip=256M
>>>> # grep -obUaP "\x5F\x42\x48\x52\x66\x53\x5F\x4D" last_chance.raw
> 
> grep returns no result on either drive
> 
>>>>> If still no hit, you could try just run the grep command on the disk.
> 
> like so?:
> grep -obUaP "\x5F\x42\x48\x52\x66\x53\x5F\x4D" /dev/sdc
> 
Yes. And it will be very slow, since you're going to read out the whole
disk.

But I don't really think you would get some hit, according to current
result.

Thanks,
Qu


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  reply	other threads:[~2018-10-07  9:47 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-06 23:23 Two partitionless BTRFS drives no longer seen as containing BTRFS filesystem evan d
2018-10-07  0:32 ` Remi Gauvin
2018-10-07  6:08   ` evan d
2018-10-07  0:41 ` Qu Wenruo
2018-10-07  6:10   ` evan d
2018-10-07  6:26     ` Qu Wenruo
2018-10-07  6:47       ` evan d
2018-10-07  7:39         ` Qu Wenruo
2018-10-07  8:09           ` evan d
2018-10-07  8:19             ` Qu Wenruo
2018-10-07  8:28               ` evan d
2018-10-07  9:47                 ` Qu Wenruo [this message]
2018-10-07 10:39                   ` evan d
2018-10-07 10:51                     ` Qu Wenruo
2018-10-07 12:25                       ` evan d
2018-10-07 12:26                         ` evan d

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