A/B rootfs redundancy on TX2-NX

Hello I am trying to flash on my 128 GB uSD card on Auvidea carrier board with uSD slot with rootfs A/B redundancy . They have provided their custom BSP which is derived and customized from Nvidia SDK manager jetpack 4.6. Is there a procedure where in I can modify/customize certain config files and or flash scripts to accomplish this?

hello ajoshi,

since it’s customize board, please check the flash command-line for the target naming. it’ll point-to the board configuration file.
for instance, $ sudo ./tools/kernel_flash/l4t_initrd_flash.sh jetson-xavier-nx-devkit-tx2-nx <rootdev>
you may look into jetson-xavier-nx-devkit-tx2-nx.conf, which has source fromp3636.conf.common.
for instance,
it’s EMMC_CFG to assign the partition layout file, by default it’s using EMMC_CFG=flash_l4t_t186.xml;
there’re ROOTFS_AB and ROOTFS_ENC properties, it’ll choose different partition layout accordingly.

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