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From: cdlinux@koala.de
To: linux-mtd@lists.infradead.org
Subject: Re: Loosing grub mbr after mounting jffs2 image with loop0 and mtdblock0
Date: Wed, 13 Oct 2004 15:40:14 +0200	[thread overview]
Message-ID: <20041013134014.GB29207@koala.de> (raw)
In-Reply-To: <20041011112017.GA22376@koala.de>

On Mon, Oct 11, 2004 at 01:20:17PM +0200, cdlinux@koala.de wrote:
> 
> I suppose, it has to do with the way I mount the jffs2 partition (as I'm
> actually mounting the entire image as loopdev/jffs2)...?
> I'm unsure about what would be the right way to do this.
> 

Sorry for posting this on the wrong list.

For completeness sake:
The solution was fairly simple, all i had to do was set the loopdevice up
correctly with the right byte-offset inside the image and forget about the
erasesz-option to the blkmtd module (eg):

  losetup -o 5881928 /dev/loop0 file.img
  modprobe blkmtd device=/dev/loop0
  mount -t jffs2 /dev/mtdblock0 /mnt/cfmnt

  ...

  umount /dev/mtdblock0
  rmmod blkmtd; rmmod jffs2;
  losetup -d /dev/loop0

After that, one can safely dd the image to the cf-card w/o loosing
partitionings, grub etc.

Sorry again,
chris

      reply	other threads:[~2004-10-13 13:40 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-10-11 11:20 Loosing grub mbr after mounting jffs2 image with loop0 and mtdblock0 cdlinux
2004-10-13 13:40 ` cdlinux [this message]

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