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Subject: Re: detecting that ubifs switched to ro after problem
From: Artem Bityutskiy <dedekind1@gmail.com>
To: Jon Ringle <jon@ringle.org>
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Date: Sun, 13 Jun 2010 12:47:34 +0300
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On Fri, 2010-06-11 at 22:46 -0400, Jon Ringle wrote:
> Hi,
> 
> I'd like to be able to somehow detect that ubifs has taken the action
> of switching from rw to ro due to some error detected in the ubifs
> filesystem. If I can detect this then maybe I can do something about
> it, such as copying the ubifs contents to a .tar.bz2 in /tmp,
> mkfs.ubifs, and restore .tar.bz2 back again.
> 
> Is there a way I can do this?

I think with 2fde99cb55fb9d9b88180512a5e8a5d939d27fec you can check for
R/O state from /proc/mounts. Also, you can use something like inotify to
watch /proc/mounts changes and react if UBIFS became r/o.

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)