Hi. We have a requirement where we need a custom carrier board with some extra I/O. we want to boot from on module SD card from Jetson Nano devkit. Can we make custom BSP for Nano and NX boot from SD card instead of the module emmc? I know that Jetson nano can not be able to totally boot from exte…

[image] HM_Tech: bit confused here, you mean to say write the SD card image using Etcher tool then put the SD card on module, then do the changes to the boot order? Something which might help clarify: When booting, and when serial console is attached, it allows you to interrupt U-Boot. If you…

Tell me which one is your target first. [image] Boot from external drive Jetson Nano Hello, I understand that there are lots of people asking about how to boot from external drive (e.g. usb/NVMe drive). And also lots of methods all around this forum. Thanks for everyo…

My requirement is use on module SD card (module from devkit) to boot and use customized the BSP for that. or to simply say I want to flash my custom BSP on nano devkit

I mean you want to boot even the kernel from it or just want to mounting the file system from it? For the first one, just change the boot target in uboot. For the second one, check the elinux page over the post I shared.

[image] WayneWWW: For the first one, just change the boot target in uboot. Yes, I want even kernel to load from SD card. can you point me how to change the boot target in uboot? Put the board in force recovery mode and then use below qspi flash script will work? sudo ./flash.sh jetson-nano…

Nothing to do with the flash. Prepare the usb ttl cable first. Stop the boot process in uart console when uboot is entered… And use below command to change the boot order. # printenv boot_targets # setenv boot_targets mmc0 mmc1 usb0 nvme0 pxe dhcp # saveenv # boot

OK, bit confused here, you mean to say write the SD card image using Etcher tool then put the SD card on module, then do the changes to the boot order? Is it possible to put the device in recovery mode and flash using flash script? the way we use for emmc method?

bit confused here, you mean to say write the SD card image using Etcher tool then put the SD card on module, then do the changes to the boot order? Totally wrong. I mean use this method to check the uart log on your host. That is the only way to check the bootloader log. [image] Jetson…

Thanks for that, I got it now. My one more doubt is after these boatloader changes. how to flash the image? we have to build it for SD card? or same image which built for eMMC can be flashed? what is the flash/image write procedure for custom BSP on SD card?

If you mean you want to customize it and let the next device can have that function without changing things, then you need to rebuild the uboot source and change the boot order there. Just as this user did. [image] Unable to boot from USB flash drive, when another USB mass …

Jetson Nano - Boot from on module SD card for custom BSP

Robotics & Edge Computing Jetson Systems Jetson Nano

WayneWWW July 26, 2021, 6:57am 3

Tell me which one is your target first.

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Jetson Nano - Boot from on module SD card for custom BSP

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