From: Karel Zak <kzak@redhat.com>
To: Kay Sievers <kay@vrfy.org>
Cc: util-linux@vger.kernel.org
Subject: Re: cfdisk created GPT tables are not recognized by the Windows 8.1 installer
Date: Fri, 9 Jan 2015 12:16:48 +0100 [thread overview]
Message-ID: <20150109111648.GC1314@x2.net.home> (raw)
In-Reply-To: <CAPXgP1300xmdYHCbBpdbRiFDAKvab4w33Jt5ZEGdkrQ4_9tj_A@mail.gmail.com>
On Thu, Dec 25, 2014 at 11:57:56PM +0100, Kay Sievers wrote:
> the Windows 8.1 installer does not recognize the GPT partition tables
> created with cfdisk. It claims it will need to initialize the entire
> disk to install Windows.
hmm... the difference which I see is that libparted uses HeaderSize=92
and libfdisk HeaderSize=512. In libfdisk we count reserved area at the
end of the first sector to header. The both solutions are pretty
valid according to standard, but I guess that Windows installer does
not real all the sector so crazy things may happen (crc, ...).
> Reading-in the cfdisk-created table and writing-back the very same
> table with parted, makes the Windows installer recognizes it, and
> Windows just its two additional partitions.
>
> I've installed Windows on that box now and don't want to try this
> again
Sure, Christmas time with Windows 8... seems like Santa Claus hates
you; be better this year :-))
> but maybe looking at the difference what parted will change in
> the cfdisk created table is sufficient to find the bug.
Yep, thanks!
Karel
--
Karel Zak <kzak@redhat.com>
http://karelzak.blogspot.com
prev parent reply other threads:[~2015-01-09 11:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-12-25 22:57 cfdisk created GPT tables are not recognized by the Windows 8.1 installer Kay Sievers
2015-01-09 11:16 ` Karel Zak [this message]
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