6850 stuck at USB scanning bus for devices

[barthen]

I have an Omniswitch 6850-48 that refuses to boot.

Connecting via serial I get these messages:

Code: Select all

U-Boot (6.4.4.213.R01) (for OS6400, OS6850, and OS6855 platforms) (Jan 27 2011 - 05:18:45)

MPC8247 Reset Status: External Soft, External Hard

MPC8247 Clock Configuration
 - Bus-to-Core Mult 4x, VCO Div 2, 60x Bus Freq  25-75 , Core Freq 100-300
 - dfbrg 0, corecnf 0x1a, busdf 3, cpmdf 1, plldf 0, pllmf 3
 - vco_out  400000000, scc_clk  100000000, brg_clk  100000000
 - cpu_clk  400000000, cpm_clk  200000000, bus_clk  100000000
 - pci_clk   66666666

CPU:   MPC8247 (HiP7 Rev 14, Mask 1.0 1K50M) at 400 MHz
Board: Alcatel-Lucent OS6850 (Kite2)
I2C:   ready
DRAM:  256 MB
FLASH:  8 MB
No environment variables found, using defaults

In:    serial
Out:   serial
Err:   serial

No ethernet found.
IDE:   Bus 0: OK 
  Device 0: Model: SanDisk SDCFB-96 Firm: Vdd 1.02 Ser#: i1328090504
            Type: Hard Disk
            Capacity: 91.7 MB = 0.0 GB (187904 x 512)
USB:   scanning bus for devices... 

PWR led is constant green
OK led is blinking orange
The number 0 is shown in the "stack position" display

The switch freezes before the miniboot prompt.

Any ideas or I'm out of luck?

[metalixxx]

remove the compaq flash from your switch . Read it with your flash reader on your PC. Search the usertable5 file (recently found at network folder) delete it ! Insert back your compaq flash to your switch and you're done.

Hope it helped