UBIFS + device issue

UBIFS + device issue

[CJ]

Hi,

I am having a problem with Nand and UBIFS. My hardware is similar to the 
OMAP3 BeagleBoard.
My system, kernel, uboot work perfectly when running from the SD card 
using EXT4, when I transfer the system files onto NAND using UBIFS there 
are unusual problems.

When booting everything appears to work and all modules appear to load 
correctly, however device /dev/media0 is not created and does not work 
when manually created. This is tied to a camera module and works fine 
when using the SD card and EXT4.
The rest of the system seems to work fine - however the camera does not 
work because the /dev/media0 device is required.
As mentioned above .. this works fine with everything exactly the same 
when boot from SD card using EXT4.

Has any body seen a problem like this in the past?
Really appreciate your help, I am lost as to what might be causing this 
issue.

Cheers,
CJ

Re: UBIFS + device issue

[CJ]

On 07/09/11 00:21, vignesh rajendran wrote:
> Hi
>
> I am not getting your problem..Your camera device is not 
> detecting..right..? What kernel version you are using...?
>
> �and check /dev/video0 is there..
>
>
> Regards
>
> Vignesh Rajendran
>
>
>
>
Hi Vignesh,

We are using the latest stable kernel 3.0.4
The camera is being detected.. we have video0 the hardware modules are 
all loading. The only thing not being setup is /dev/media0

The weird thing is that it works when running from SD card with EXT4, 
but not from NAND with UBIFS. There may be another variable that is 
changing - but it is not software or kernel.

Has anyone observed anything like this before?

Cheers,
CJ

Re: UBIFS + device issue

[CJ]

On 12/09/11 18:40, vignesh rajendran wrote:
> Hi CJ
>
> �� Check tour udev is working or not...
>
>
> Regards
>
> Vignesh Rajendran
Hi,

Just a quick update.
I tried the same system/kernel etc with JFFS2 and it worked fine.
So it does seem to be a UBIFS issue.

Cheers,
CJ