From: Artem Bityutskiy <dedekind@infradead.org>
To: Hamish Moffatt <hamish@cloud.net.au>
Cc: linux-mtd@lists.infradead.org
Subject: Re: ext2 for read-only file system on UBI
Date: Mon, 19 May 2008 10:54:23 +0300 [thread overview]
Message-ID: <1211183663.27243.32.camel@sauron> (raw)
In-Reply-To: <20080519074403.GA17911@cloud.net.au>
On Mon, 2008-05-19 at 17:44 +1000, Hamish Moffatt wrote:
> > Yes, her layer is assumed to be R/W block device.
> >
> > You could want to glance here as well:
> >
> > http://www.linux-mtd.infradead.org/faq/general.html#L_ext2_mtd
> > http://www.linux-mtd.infradead.org/faq/ubi.html#L_ext2_over_ubi
>
> Thanks for the links. So, read-write with mtdblock is dangerous
> (regardless of UBI) because it must erase and rewrite a whole block,
> right?
Yes, and you loose plenty of data in case of power-cuts.
> Proposed ubiblk (linked from above) would use UBI ops to make the
> update operation safe.
I have not looked that close at Nancy's patches because I did not like
her unreasonable copy-paste stuff. But I assume she would do something
like I proposed here:
http://lists.infradead.org/pipermail/linux-mtd/2008-January/020381.html
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
next prev parent reply other threads:[~2008-05-19 7:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-19 6:21 ext2 for read-only file system on UBI Hamish Moffatt
2008-05-19 6:37 ` Artem Bityutskiy
2008-05-19 6:56 ` Hamish Moffatt
2008-05-19 7:08 ` Artem Bityutskiy
2008-05-19 7:44 ` Hamish Moffatt
2008-05-19 7:54 ` Artem Bityutskiy [this message]
2008-05-19 7:57 ` Artem Bityutskiy
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