linux-kernel - Re: howto create partitions bigger than 2TB

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Message-ID: <46980232.4080500@zytor.com>
Date:	Fri, 13 Jul 2007 15:52:34 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Ingo Freund <linux-kernel-news@...ict.net>
CC:	linux-kernel@...r.kernel.org
Subject: Re: howto create partitions bigger than 2TB

Ingo Freund wrote:
> Hi
> 
> I've got a RAID5 (driver aacraid for an ICP9047MA) with four
> 750GB hdds which provides a 2.25TB sized device.
> None of the until now used tools will work with that device.
> fdisk complains about missing cylinder count.
> cfdisk misses the device size.
> parted shows the right device size but only creates a partion
> with 51GB.
> What am I supposed to do to work with this device?
> Which fs can handle it?
> (CONFIG LARGE BLOCK is on)
> We are talking about a 32Bit machine with vanilla kernel 2.6.21.5.
> 

You have to use GPT partitions instead of DOS partitions (although you
may have to leave your /boot as an DOS partitions, this is supposed to
be possible as the two partitioning schemes are designed to coexist, but
I don't think parted has support for it yet.)

	-hpa
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