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From: Ruediger Meier <sweet_f_a@gmx.de>
To: util-linux@vger.kernel.org
Subject: BUG: wipefs dry run
Date: Wed, 10 May 2017 11:54:50 +0200	[thread overview]
Message-ID: <201705101154.50099.sweet_f_a@gmx.de> (raw)

Hi,

I wonder why wipefs does not show all MBR and GPT signatures which would
be deleted by using "-fa".

$ truncate -s 100M /tmp/CCC
$ ./sfdisk /tmp/CCC <<EOF
> label: gpt
> label-id: 384A8F14-17FF-4782-A190-A5B858E3FCF0
> device: /tmp/CCC
> unit: sectors
> first-lba: 34
> last-lba: 204766
> EOF

$ ./wipefs  -fa --no-act   /tmp/CCC
/tmp/CCC: 8 bytes were erased at offset 0x00000200 (gpt): 45 46 49 20 50 
41 52 54

$ ./wipefs  -fa    /tmp/CCC
/tmp/CCC: 8 bytes were erased at offset 0x00000200 (gpt): 45 46 49 20 50 
41 52 54
/tmp/CCC: 8 bytes were erased at offset 0x063ffe00 (gpt): 45 46 49 20 50 
41 52 54
/tmp/CCC: 2 bytes were erased at offset 0x000001fe (PMBR): 55 aa


cu,
Rudi

             reply	other threads:[~2017-05-10  9:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-10  9:54 Ruediger Meier [this message]
2017-05-10 10:32 ` BUG: wipefs dry run Karel Zak
2017-05-10 10:53   ` Karel Zak
2017-05-10 11:03   ` Ruediger Meier
2017-05-26 11:21     ` Karel Zak
2017-06-15 14:47       ` Ruediger Meier
2017-06-16  9:39         ` Karel Zak
2017-06-29 10:55         ` Karel Zak

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