linux-kernel - Re: Weird harddisk behaviour

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Message-ID: <87y7o2hsmm.fsf@pumba.bayour.com>
Date:	Wed, 17 Jan 2007 11:09:21 +0100
From:	Turbo Fredriksson <turbo@...our.com>
To:	linux-kernel@...r.kernel.org
Subject: Re: Weird harddisk behaviour

Quoting Ken Moffat <zarniwhoop@...world.com>:

> On Tue, Jan 16, 2007 at 02:27:06PM +0100, Turbo Fredriksson wrote:
>> A couple of weeks ago my 400Gb SATA disk crashed. I just
>> got the replacement, but I can't seem to be able to create
>> a filesystem on it!
>> 
>> This is a PPC (Pegasos), running 2.6.15-27-powerpc (Ubuntu Dapper v2.6.15-27.50).
> Hi Turbo,
>
>  I think you have mac partitions (the first item is the partition
> map itself - very different from the dos partitions common on x86).
>
>  Certainly, fdisk from util-linux doesn't know about mac disks, and
> I thought the same was true for cfdisk and sfdisk.  Many years ago
> there was mac-fdisk, I think also known as pdisk, but nowadays the
> common tool for partitioning mac disks is probably parted.

Yes. See now that 'fdisk' is a softlink to 'mac-fdisk'...

> Please try parted.

Same thing ('mkpartfs primary ext2 0 400000'):

Jan 17 11:03:41 localhost kernel: [254985.117447] EXT2-fs: sdb1: couldn't mount RDWR because of unsupported optional features (10000).

The 'unsupported optional features' number keeps changing... ?
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