about nvidia Jeston TX2,how can i go into bios or use usb device to boot into a live cd
Moving this to the Jetson forum for better visibility.
FYI, there is no BIOS in any embedded device. That role is custom to each device and is partly in software (or firmware) which runs prior to U-Boot, and within U-Boot.
U-Boot itself must be able to read whichever partition type the operating system is on, and I don’t know if U-Boot has drivers for FUSE. Linux itself has no problem with this, but it is the bootloader which is in question, so I don’t think you could do this without somehow getting FUSE into U-Boot.
The GRUB bootloader has many more file system drivers than does this version of U-Boot, but GRUB depends on a motherboard BIOS.