How boot from tf/usb without any button?

Which system do you use? Android, Ubuntu, OOWOW or others?

Ubuntu

Which version of system do you use? Please provide the version of the system here:

PRETTY_NAME=“Ubuntu 22.04 LTS”
NAME=“Ubuntu”
VERSION_ID=“22.04”
VERSION=“22.04 (Jammy Jellyfish)”
VERSION_CODENAME=jammyUbuntu 20.04 lts

Please describe your issue below:

I want vim2 boot from TF/USB storage without press any key(Fcunction\Rest etc).If I flash image to TF/USB storage,the emmc has erased,how can i let vim2 boot from tf? No any key or shourtcutanypad

If eMMC is clean.

  • Boot from TF - It will automically boot from TF card
  • Bot from USB Disk - It cant boot from USB Disk due to no bootloader

Ok,thank you,I attempt flash emuelec 3.9 to tf card(emmc is clean), it’s not work,I trying use official android image to flash the SD card,I hope it’s fine.