DRA829J: A/B Swap Software Update in Linux SDK

Hello, 

On the emmc, Have you made two separate partitions of ext4 type? 

Your will need to divide emmc into 2 halves. Create 2 separate partitions of emmc and then copy the rootfs to both partitions.

Then in the U-Boot you need pass the bootargs based on the partition that you want to use for booting. 

Best Regards,

Keerthy

I am able to create 2 separate emmc partitions . When i proceed to change the uboot config in uEnv.txt to override the bootargs , it doesnt seemt to work. What will be the best approach to do so . In my case /run/media/BOOT-mmcblk1p1 has the uENV.txt and mmcblk0p1 and mmcblk0p2 are my emmc partions with the new filesystems

Hello Siva,

Can you override the rootfs path in U-Boot using:

setenv args_mmc "run finduuid;setenv bootargs console=ttyS2,115200n8  root=/dev/mmcblk0p1 rw rootfste=ext4 rootwait"

Best Regards,
Keerthy

Hello ,

I tried this , it seems to work , when I use args_mmc in both uboot prompt and in uEnv.txt. 
However this only does for the rootfs , is there a proposed architecture or example in which we can update other utulities part of "boot-adas-j721e-evm.tar.gz" like the kernel , device tree etc, which right now are present under /run/media/BOOT-mmcblk1p1

Regards