From: Karel Zak <kzak@redhat.com>
To: Ruediger Meier <sweet_f_a@gmx.de>
Cc: util-linux@vger.kernel.org
Subject: Re: BUG: fdisk, gpt broken on 32bit big endian systems
Date: Fri, 30 May 2014 10:26:54 +0200 [thread overview]
Message-ID: <20140530082654.GC9000@x2.net.home> (raw)
In-Reply-To: <201405300531.00403.sweet_f_a@gmx.de>
On Fri, May 30, 2014 at 05:31:00AM +0200, Ruediger Meier wrote:
> Hi,
>
> This ...
>
> $ rm -f xxx; truncate -s 10M xxx
> $ echo -ne "g\nx\ni\n26841E90-46E0-4205-B012-4B8AEC35C088\nr\nw\nq\n" | fdisk xxx
>
> ... creates a broken gpt image on 32bit big endian systems.
>
> "hexdiff" xxx-broken xxx-good:
> 00000260 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
> *
> 009ffe00 45 46 49 20 50 41 52 54 00 00 01 00 00 02 00 00 |EFI PART........|
> -009ffe10 68 a5 49 d1 00 00 00 00 ff ff ff ff ff ff ff ff |h.I.............|
> +009ffe10 15 b9 f3 7e 00 00 00 00 ff 4f 00 00 00 00 00 00 |...~.....O......|
^^^^^^^^^^^ ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^
crc32 reserved header LBA
The problem is the LBA, "ff ff ff ff ff ff ff ff" seems strange :-)
(Correct is ff4f, (means 0x4fff * 512 + 512 = 10485760, 10MiB).
Karel
--
Karel Zak <kzak@redhat.com>
http://karelzak.blogspot.com
next prev parent reply other threads:[~2014-05-30 8:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-30 3:31 BUG: fdisk, gpt broken on 32bit big endian systems Ruediger Meier
2014-05-30 8:26 ` Karel Zak [this message]
2014-05-30 8:54 ` Karel Zak
2014-05-30 11:52 ` Ruediger Meier
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