UBIFS + device issue

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

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

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