From: Felix Miata <mrmazda@earthlink.net>
To: dE <de.techno@gmail.com>, util-linux@vger.kernel.org
Subject: Re: fdisk and 2048 sectors obsession.
Date: Mon, 27 Oct 2014 23:55:57 -0400 [thread overview]
Message-ID: <544F13CD.8000502@earthlink.net> (raw)
In-Reply-To: <544F0C88.1080807@gmail.com>
dE composed on 2014-10-28 08:54 (UTC+0530):
> Felix Miata wrote:
>> http://www.seagate.com/tech-insights/advanced-format-4k-sector-hard-drives-master-ti/
>> may provide some insight WRT performance issues ensuing from other start
>> sector selections.
> But that works even with multiples of 8. So we can start from sector 8
> in MBR and 40 in GPT.
OK, as long as you know you'll never need a bootloader or other boot-time
software that requires the "wasted" space between MBR and first partition
sector. It seems M$ for Vista picked 2048 to reserve plenty of space for such
a *possibility* (not necessarily expectation), so for compat reasons and
other[1], other tools, including fdisk, decided to do the same at least by
default.
I've created partitions starting at sector 0x400 on 4k disks with no problems
observed.
> Also I'm pretty sure fdisk uses 2048 even with -b 4096, but
> unfortunately I get --
> *** Error in `fdisk': malloc(): memory corruption: 0x0000000002507330 ***
> with that switch.
Bug somewhere?
[1]
http://www.anchor.com.au/blog/2012/10/the-difference-between-booting-mbr-and-gpt-with-grub/
--
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata *** http://fm.no-ip.com/
next prev parent reply other threads:[~2014-10-28 3:55 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-27 18:43 fdisk and 2048 sectors obsession dE
2014-10-27 19:07 ` Felix Miata
2014-10-28 3:24 ` dE
2014-10-28 3:55 ` Felix Miata [this message]
2014-10-28 4:30 ` dE
2014-10-28 5:53 ` Felix Miata
2014-10-28 7:32 ` Karel Zak
2014-10-28 7:49 ` Felix Miata
2014-10-28 8:48 ` Martin Steigerwald
2014-10-28 8:47 ` Martin Steigerwald
[not found] ` <544F3B20.7090109@gmail.com>
2014-10-28 14:33 ` dE
2014-10-28 17:11 ` Linda Walsh
2014-10-29 14:28 ` Dale R. Worley
2014-10-28 7:53 ` Karel Zak
2014-10-28 12:38 ` Martin K. Petersen
2014-10-28 14:53 ` dE
2014-10-28 15:35 ` Theodore Ts'o
2014-10-29 16:40 ` dE
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