board info：
Jetson Xavier NX 16 GB-DRAM (P3668-0003)
Jetson Linux 35.1.
/dev/mmcblk1 is the external SD Card（emmc used for sd）mount on the /mnt/public.
Can I back up this area and restore it together while backing up the system on recovery mode？
hello 243953617,
why don’t you use the utility to back-up sd card directly?
Because we want to be able to use the flash.sh（under Linux_for_Tegra/） tool to burn the system in one step, format the external memory and recover all the data for mass production.
hello 243953617,
flash script do not support back-up SD card image. you may try with dd commands to copy sd-card content to somewhere else for backing up.
can i modify the flash script to SUPPORT THIS feature？
mounting external storage in recovery mode and then copying the data?
hello 243953617,
no, it’s not supported.
here’s see-also. Clone SD Card - Jetson Nano and Xavier NX - JetsonHacks to clone the SD card image by using dd utility, thanks
Okay, well, I won’t be analyzing the flash script, thank you.
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