From: Ruediger Meier <sweet_f_a@gmx.de>
To: util-linux@vger.kernel.org
Subject: BUG: fdisk, gpt broken on 32bit big endian systems
Date: Fri, 30 May 2014 05:31:00 +0200 [thread overview]
Message-ID: <201405300531.00403.sweet_f_a@gmx.de> (raw)
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......|
009ffe20 01 00 00 00 00 00 00 00 00 08 00 00 00 00 00 00 |................|
009ffe30 de 4f 00 00 00 00 00 00 90 1e 84 26 e0 46 05 42 |.O.........&.F.B|
009ffe40 b0 12 4b 8a ec 35 c0 88 df 4f 00 00 00 00 00 00 |..K..5...O......|
Looks like the backup header is broken.
Notes:
- I only used fixed uuid to have better diff.
- 64bit big endian systems are not broken
cu,
Rudi
next reply other threads:[~2014-05-30 3:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-30 3:31 Ruediger Meier [this message]
2014-05-30 8:26 ` BUG: fdisk, gpt broken on 32bit big endian systems Karel Zak
2014-05-30 8:54 ` Karel Zak
2014-05-30 11:52 ` Ruediger Meier
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