1: Create USB stick

Prepare a USB-stick with format FAT32

Prepare ONIE file in ubuntu system

Use command sudo dd if=Wedge100BF-32X-r0_ONIE_v2018_05_00_05.iso of=/dev/sdc1

Insert USB-stick to Wedge10BF-32X

2: Reboot switch, and press "ESC" enter BIOS

3: At [Save & Exit], choose "Boot Override" as “UEFI: USB disk” 

 4：Select “ONIE: Rescue” from the grub menu.

5：Use command “fdisk -l” to check HDD path(/dev/sda).

6 Use command “onie-self-update -e /lib/onie/onie-updater -d /dev/sda” to update ONIE system.

 7. After ONIE is installed, the system will reboot automatically.  Remove the USB disk.  If you enter BIOS menu, you will see the “ONIE: Open Network Install Environment” in the first boot option.