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Date: Mon, 5 Sep 2011 10:33:03 +0200
From: Matthieu CASTET <matthieu.castet@parrot.com>
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To: Jon Ringle <jon@ringle.org>
Subject: Re: can't mount ubifs after resizing with ubirsvol
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Hi,

Jon Ringle a écrit :
> Hi,
> 
> I have a ubi0 with a static squashfs part and a ubifs part. Sometimes
> I have to update the squashfs with an image that is bigger than the
> currently allocated space for the squashfs part. My plan was to use
> ubirsvol to reduce the size of the ubifs part, then use ubirsvol in
> increase the size of the squashfs part so that it is big enough for
> ubiupdatevol to accept the new image in the squashfs part.
> 
> But when I try to mount ubifs after resizing, it complains with:
> (initramfs)[/]# mount -t ubifs ubi0:ubifs /mnt
> [ 1838.350000] UBIFS error (pid 621): validate_sb: bad LEB count: 866
> in superblock, 800 on UBI volume, 19 minimum required
> [ 1838.360000] UBIFS error (pid 621): validate_sb: bad superblock, error 1
> mount: mounting ubi0:ubifs on /mnt failed: Invalid argument
> 
> Is what I want to do possible?
> 
AFAIK you can't reduce size of ubifs volume, you can only increase it.


Matthieu