Creating and Flashing DVSDK Demo Filesystem for DM3XX Platforms

This section describes creating JFFS2 demo filesystem from DVSDK release.

Note: If you are upgrading from DVSDK 2.X and before. Please follow the instructions provided in the link Flashing_DM365_EVM_using_NAND_Writer_utilities.

In following commands please replace 3_10_X_X to actual DVSDK release number, like 3_10_00_15 and replace 3xx with 355 or 365.

Download DVSDK demo image, filesystem and data in a Ubuntu machine where you have sudo privilege.

 host $ wget http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/dvsdk/DVSDK_3_10/latest/exports/arago-demo-image-dm3xx-evm.tar.gz
 host $ wget http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/dvsdk/DVSDK_3_10/latest//exports/dvsdk_3_10_X_X_overlay_dm3xx.tar.gz
 host $ wget http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/dvsdk/DVSDK_3_10/latest/exports/data_dm3xx.tar.gz

Create the filesystem image

host $ mkdir dm3xx_flash_image_3_10_X_X
host $ sudo tar -xzf arago-demo-image-dm3xx-evm.tar.gz -C dm3xx_flash_image_3_10_X_X
host $ sudo tar -xzf dvsdk_3_10_X_X_overlay_dm3xx.tar.gz -C dm3xx_flash_image_3_10_X_X
host $ sudo tar -xzf data_dm3xx.tar.gz -C dm3xx_flash_image_3_10_X_X/opt/dvsdk

Install web-server

host $ sudo mv dm3xx_flash_image_3_10_X_X/opt/dvsdk/dm3xx/web/thttpd dm3xx_flash_image_3_10_X_X/etc/init.d/thttpd
host $ sudo cp -r dm3xx_flash_image_3_10_X_X/opt/dvsdk/dm3xx/web/* dm3xx_flash_image_3_10_X_X/srv/www/
host $ sudo chmod 644 dm3xx_flash_image_3_10_X_X/srv/www/*.*
host $ sudo chmod a+x dm3xx_flash_image_3_10_X_X/srv/www/cgi-bin/*

Change /etc file to start demo at bootup

host $ sudo chmod a+x dm3xx_flash_image_3_10_X_X/opt/dvsdk/dm3xx/dvevmdemo
host $ sudo mv dm3xx_flash_image_3_10_X_X/opt/dvsdk/dm3xx/dvevmdemo dm3xx_flash_image_3_10_X_X/etc/init.d
host $ cd dm3xx_flash_image_3_10_X_X/etc/rc5.d
host $ sudo ln -s ../init.d/dvevmdemo S99dvevmdemo
host $ cd ../..

Create DVSDK demo filesystem image

host $ sudo tar -cf ../dm3xx_flash_image_3_10_X_X.tar .
host $ cd ..

Copy the image to the NFS filesystem

host $ cp dm3xx_flash_image_3_10_X_X.tar <to nfs filesystem>

Now boot target using NFS, then do the following to write the image to NAND

target$ flash_eraseall /dev/mtd4
target$ mkdir -p /mnt/nand
target$ mount /dev/mtdblock4 /mnt/nand -t jffs2
target$ cd /mnt/nand
target$ tar -xf dm3xx_flash_image_3_10_X_X.tar

Change bootargs with root=/dev/mtdblock4 rw rootfstype=jffs2, the board should boot from flash. The board should come up with a DVSDK demo automatically started.

For technical support please post your questions at http://e2e.ti.com. Please post only comments about the article DM3xx filesystem restore procedure in DVSDK 3.10 here.