NANDBlaster fails on one machine repeatedly...

Sameer Verma sverma at
Wed Oct 7 13:42:18 EDT 2009

On Tue, Oct 6, 2009 at 12:20 PM, Martin Langhoff
<martin.langhoff at> wrote:
> On Tue, Oct 6, 2009 at 7:54 PM, Sameer Verma <sverma at> wrote:
>> I am using NANDBlaster to update all of our SFSU Lending Library XOs
>> (a total of 12). All machines update via nb-secure to 8.2.1 except one
>> XO, which repeatedly (five tries so far) fails to find the NANDBlaster
>> info, cycles through all other options and says "Boot failed".  It
>> does update via USB key though.
>> Suggestions for diagnosis?
>  - OFW version? OFW upgrade/reinstall?

Q2E41 USB image installation (gg802-1.img)

>  - Does the machine have any other network problems? If you run the
> OFW diagnostics, can it see all the ESSIDS around?

During the diagnostics, the test hangs on the wlan part. No ESSIDS
seen. The WLAN lights don't come up either.

> In Sugar, does it
> see all the APs available? Can it connect to APs normally?

In Sugar I see the APs. I also see the WLAN lights. However, after
about 3 to 5 minutes, the Neighborhood view goes blank. The network
icons in the frame go away as well. The WLAN light stays on though.

> I have seen NANDBlaster fail to detect the signal, but only on
> machines that had issues with networking. Sometimes the wifi is just
> dead. In other cases, it just gets weaker signal.

The source machine sits next to the one being blasted.

This one is definitely strange. I haven't seen behavior like this
before in any of the XOs I have or the ones that pass through OLPC-SF.


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