From: Artem Bityutskiy <dedekind1@gmail.com>
To: Arno Steffen <arno.steffen@googlemail.com>
Cc: linux-mtd@lists.infradead.org
Subject: Re: MTD Flash Partition: change possible?
Date: Mon, 23 Aug 2010 15:13:42 +0300 [thread overview]
Message-ID: <1282565622.24044.20.camel@localhost> (raw)
In-Reply-To: <AANLkTikc13g+5Q3YFMhgfJ1LWq_aMLUK1M9AFr2G1WSP@mail.gmail.com>
On Mon, 2010-08-23 at 14:11 +0200, Arno Steffen wrote:
> 2010/8/23 Artem Bityutskiy <dedekind1@gmail.com>:
> > On Mon, 2010-08-23 at 12:23 +0200, Arno Steffen wrote:
> >> In my embedded system the Flash-partition table is compiled into kernel.
> >> Is there a way to change partition table without booting a new kernel? How?
> >>
> >> Background: I want to update an embedded system and change the size of
> >> partitions. But tools as flash_eraseall and nandwrite use partitions
> >> of the current kernel. If I want to change the size of the partitions,
> >> this is impossible.
> >> If I first flash a new kernel with new partition table, I have to
> >> reboot and the system will not start, as the old partitioning scheme
> >> is still active.
> >
> > There were at least 2 patches. One from Nokia - it was ok, but a small
> > change was requested and the author disappeared. One was from Samsung -
> > I did not look at it so far. The patches were sent to the MTD mailing
> > list a month or 2 ago.
> >
> > --
> > Best Regards,
> > Artem Bityutskiy (Артём Битюцкий)
> >
> >
>
> Spasibo, Artem.
>
> I found the Nokia Patch
> http://lists.infradead.org/pipermail/linux-mtd/2010-June/030645.html
> This seems to be done for OneNand, while I am using Nand.
No, it is not OneNAND-specific!
> Regarding the pathes: That are requests to change, so it is not for
> sure that this is implemented in a new kernel?
>
> I found this as an update to mtdutils.
> http://lists.infradead.org/pipermail/linux-mtd/2010-July/031200.html
> Does this needs a new kernel to support this functions? I am using a 2.6.33.
Dunno, did not look at this.
> Reading this, I think there is no solution for my current system.
> Is there a way to show the startaddress of a partition? /proc/mtd
> shows just size, not start address.
I do not think we can change /proc/mtd, but isn't it easy to calculate
the start address using partition sizes?
--
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
next prev parent reply other threads:[~2010-08-23 12:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-23 10:23 MTD Flash Partition: change possible? Arno Steffen
2010-08-23 10:53 ` Artem Bityutskiy
2010-08-23 12:11 ` Arno Steffen
2010-08-23 12:13 ` Artem Bityutskiy [this message]
2010-08-23 13:09 ` Arno Steffen
2010-08-23 13:11 ` Artem Bityutskiy
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