Error booting from USB

Hi,

 

 

I have a Bigip LTM 6900 frozen and only can access via console.

 

 

when i try run the operatin system from the disk, appear "Error 22 :no such partition".

 

 

I have decided reinstall the software from USB.

 

 

I have followed the steps to boot the unit using USB Mass Storage with the umdinstall.exe application in Windows . But when I insert the usb in the Bigip appliance and power on the unit appears the following error:

 

 

USB storage device found ... General USB Flash Disk USB Device

 

 

 

IDE storage device found ... IDE 0/Pri Master, SILICONSYSTEMS INC 8GB-

 

 

Embedded BIOS Debugger Invalid Opcode Trap

 

EAX = 00000000 CS:EIP = 0000:00007E01 EFL = 00000246 pl ZR .. na .. PE .. nc

 

EBX = 00000000 SS:ESP = 0000:0000FFFC EBP = 00000000 .. nt IOPL0 nv up EI ..

 

ECX = 0000FFFF DS:ESI = 0000:00000000 FS = 0000 .. .. id vp vi al vm rf

 

EDX = 00000080 ES:EDI = F000:0000DFB1 GS = 0000

 

0000:7E01 db FFh / "." (255).v

 

 

EBDEBUG>

 

 

Somebody know this error?

 

 

Thanks.