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Root file system

Hi

We are building a minimal root file system for DM6446 with BusyBox.

We are trying to run our application on the minimal file system and we get the following message

DavinciDisplay DavinciDisplay.1: Display Manager failed to allocate layer
DavinciDisplay DavinciDisplay.1: Unable to configure video layer for id = 0
@0x000bf940:[T:0x4214a490] ti.sdo.dmai - [Display] Cannot open /dev/video2 (Invalid argument) 

On the MontaVista root file system (with the same kernel paramters and same application) everything works, so we know it does not connected to the bootargs but only to the file system.

Bootargs  

console=ttyS0,115200n8 noinitrd rw ip=dhcp root=/dev/nfs nfsroot=10.1.0.46:/home/sagi/workdir/fs_shmil,nolock mem=118M video=davincifb:vid0=720x576x16,2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K davinci_enc_mngr.ch0_output=COMPOSITE davinci_enc_mngr.ch0_mode=pal

We are running udev dameon succesfully on the sysinit so we see all the devices under /dev directory.

Can you please let us know where shuold we look for the problem? Thanks,

Sagi