Some news for this: [PATCH] [MTD] BLOCK_RO: Readonly Block Device Layer Over MTD ?

[Josh Boyer]

On Wed, 21 Nov 2007 17:28:05 +0100
"Gregory CLEMENT" <gclement00 at gmail.com> wrote:

> 2007/11/21, Jörn Engel <joern at logfs.org>:
> > On Wed, 21 November 2007 15:27:19 +0100, Gregory CLEMENT wrote:
> > >
> > > I come back with my question because it seems that last time I sent
> > > this mail mtd mailing list was done during few weeks, so maybe  this
> > > mail was lost.
> >
> > What problem does the driver solve?
> It allow  to use cramfs/squashfs/fat in read-only on NAND flash for
> embedded systems.

Not really.  It allows you to put one of those filesystems into
NAND using a bad-block aware program initially, and mount it.  It
doesn't handle run-time bit flips or errors from what I can see.

josh