Can I just use NVME to burn in all the images？Because we want to create all-in-one image for nvme disk , to remove the process of burning QSPI flash in factory.
Not possible. Need somewhere to put bootloader and that cannot be put in nvme directly.
Trivia: Jetsons don’t have a BIOS. You still need the equivalent, but it is in software. The QSPI for SD card models will contain not only the boot content, but also that content which is the equivalent of a BIOS. That content is more specific because of custom boot requirements, and so it won’t look for boot devices the same way as a desktop PC with a BIOS. If that QSPI flash is not compatible with the what you are doing it won’t boot no matter what you put on the NVMe.
So, if I erase all content in QSPI flash, Can I still put the Jetson device into Recovery Mode and flashing it again?
As you said, it seems that CPU can only get the content from QSPI flash at start stage, and execute the bootloader, UEFI.
Yes, recovery mode has nothing to do with the content on the board
Recovery mode is quite reliable. 100% independent of almost all software. This is prior to running any UEFI. Changing QSPI does change which SD card content will succeed in booting. UEFI of an SD card model is in fact inside of the QSPI, but it isn’t the only content in QSPI.
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