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From: "Francois Barre" <francois.barre@gmail.com>
To: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: Bigendian issue with mdadm
Date: Tue, 21 Feb 2006 09:37:33 +0100	[thread overview]
Message-ID: <fd8d0180602210037q6537edcdu@mail.gmail.com> (raw)
In-Reply-To: <17402.21590.564710.372935@cse.unsw.edu.au>

2006/2/21, Neil Brown <neilb@suse.de>:
> On Monday February 20, francois.barre@gmail.com wrote:
> > Hi All,
> >
> > Please, Help !
> >
[...]
> > And it seams like md superblock disk format is hostendian, so how
> > should I say mdadm to use a endianness ?
> >
>
> Read the man page several times?
>
> Look for "--update=byteorder"
>
> You need mdadm-2.0 or later.
>
> NeilBrown
>

Ooops... You know what it is : the more you focus on a problem, the
less you can see solutions floating around...
I had mdadm-1.2 installed, and of course did not think about
upgrading... I will test this asap.
This will avoid me to code a byte reordering program... Thanks Neil !
BTW : I did not see this feature in the kernel code, and after a quick
look at mdadm source, seems to be implemented in
super0.c:super0_swap_endian(). Is there any prerequisite regarding the
kernel version for this to work ?

Thanks again Neil, I am really impressed by your patience answering
dummy questions...

Regards,

      parent reply	other threads:[~2006-02-21  8:37 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-20 21:38 Bigendian issue with mdadm Francois Barre
2006-02-20 23:44 ` Neil Brown
2006-02-21  6:17   ` Luca Berra
2006-02-21  6:38     ` Neil Brown
2006-02-21  8:37   ` Francois Barre [this message]

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