Redboot FIS entry upgrade from Linux

Redboot FIS entry upgrade from Linux

[Jacob Avraham]

Hi,

Say I have a zImage or ramdisk image as a file listed in FIS,
which I use to  "fis load" from Redboot.
Now I want to upgrade an image from Linux, so in addition to
writing into the specific mtd partition I need to update the FIS
directory entry checksum value.

Are there any utils to facilitate that?
Or maybe such where not developed because it's not a good idea?

Thanks,

Jacob

RE: Redboot FIS entry upgrade from Linux

[Foster_Brian]

> -----Original Message-----
> From: linux-mtd-bounces@lists.infradead.org [mailto:linux-mtd-
> bounces@lists.infradead.org] On Behalf Of Jacob Avraham
> Sent: Sunday, January 13, 2008 11:31 AM
> To: linux-mtd@lists.infradead.org
> Subject: Redboot FIS entry upgrade from Linux
> 
> Hi,
> 
> Say I have a zImage or ramdisk image as a file listed in FIS,
> which I use to  "fis load" from Redboot.
> Now I want to upgrade an image from Linux, so in addition to
> writing into the specific mtd partition I need to update the FIS
> directory entry checksum value.
> 
> Are there any utils to facilitate that?
> Or maybe such where not developed because it's not a good idea?
> 
> Thanks,
> 
> Jacob
> 
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/

Perhaps Linux 'fconfig' is what you are looking for:

http://andrzejekiert.ovh.org/software.html.en

Brian

Re: Redboot FIS entry upgrade from Linux

[Hamish Moffatt]

On Sun, Jan 13, 2008 at 06:31:20PM +0200, Jacob Avraham wrote:
> Hi,
> 
> Say I have a zImage or ramdisk image as a file listed in FIS,
> which I use to  "fis load" from Redboot.
> Now I want to upgrade an image from Linux, so in addition to
> writing into the specific mtd partition I need to update the FIS
> directory entry checksum value.
> 
> Are there any utils to facilitate that?
> Or maybe such where not developed because it's not a good idea?

(Sorry, I'm a bit behind on this list.)

There's a utility here which can modify the RedBoot FIS table:
http://svn.chezphil.org/utils/trunk/fis.c

I added support for updating the checksums. You can get my patch here:
http://buildroot.uclibc.org/cgi-bin/viewcvs.cgi/trunk/buildroot/package/fis/fis-001-checksum.patch?rev=20951&view=auto

Like you, I update the kernel/initrd from linux then use fis to update
the checksums so that RedBoot will still load the image.

Hamish
-- 
Hamish Moffatt VK3SB <hamish@debian.org> <hamish@cloud.net.au>