Hi jgillespie,

Sorry to make trouble with you!
So now your first Board can goes to the EFI shell,but just for can't install anythings?
Can you try to follows steps and give me a photo,so that i can know the status!

Step 1(Make a USB bootable):
Use the Win32DiskImager make it!

Step 2(goes to EFI)
run the command follows:
fs0:
Or
fs1:
Please show me the result!

Step 3:
reboot the JaguarBoard and press the F11 key,and show me the result!

Best Reards!

Images attached. I redid the Flash Drive with Win32DiskImager. Set it as the default boot device. On boot the board still went to EFI Shell. So I went into fs0, fs1. I see the Flash is fs1. Rebooted and pressed F11, selected the USB device and it brought me straight to BIOS instead of booting to it as shown in the 3rd to last image. The same result occurs with multiple Operating Systems, multiple Flash Drives, and an external DVD-Drive. I rebooted and looked inside the flash drive in EFI Shell. A question mark is shown on files within the drive, as I've noticed on every single folder I've went into when I inspect a disk or Flash drive with this particular board. The final image shows a DIFFERENT Jaguar Board, using the same flash drive, as you can see there is no question mark on the folders in the word BOOT.

Sir, It seems the USB driver is not EFI bootable, I am not sure if it is because of the netinst img file. We have tested following iso file and boot well:
debian-8.1.0-amd64-DVD-1.iso
Fedora-Server-DVD-x86_64-22.iso
ubuntu-14.04.4-server-amd64.iso

Please choose one of them to create the USB drive with Win32DiskImager again. Then let us know the result.

tim 写道：:
Ill try but I have 4 JaguarBoards and this Usb drive works on the other 3 it will just not work on this particular board

Hi Sir,

Please try to flash the UEFI, then boot the USB drive.

www.jaguarboard.org/downloads/UEFI.zip

Prepare a USB drive with FAT32 format, place folder "bios" under the root path of USB drive.
Then follow steps below to flash UEFI:
1）Press F11 when you see Intel post logo, choose "UEFI:Built-in EFI Shell", press Enter;
2）fs1: (Notice: Enter your USB drive, normally fs1:, if not, you can try fs2: or fs3:)
3) cd bois (Notice: Switch into BOIS folder )
4) fpt64 -f a64.bin (Notice: Flash 64bit UEFI for linux)

I have tried this several times already as mentioned in the very first post of this thread. This board will NOT accept the bios flash file. I have tried again matching your instructions exactly and have gotten the same results. There is a question mark in the file name of the EFI file so it will not accept it. I have attached a screenshot.

This is a screenshot of a freshly formatted (fat32) flash drive with the bios folder inserted into the root directory. The Linux BIOS as you may agree is corrupted, but it is un-flashable so I don't see a solution. As mentioned this single board is the only one out of 4 that behave this way, all other boards recognize the folders and files. Any more suggestions or can we please RMA this?