open firmware question

Mitch Bradley wmb at laptop.org
Fri Jan 4 17:24:07 EST 2008


Ivan Krstić wrote:
> On Jan 2, 2008, at 10:13 PM, Ricardo Carrano wrote:
>   
>> How do I do the opposite of copy-nand - copy the OS image _from_ the  
>> nand into a USB key?
>>     
>
> If you don't have OFW access or it isn't convenient to have to reboot,  
> you can use my 45-second Python hack:  <http://dev.laptop.org/~krstic/dumpnand.py 
>  >
>
> # modprobe mtdchar
> # python dumpnand.py < /dev/mtd0 > /your/USBKEY/nand-image.bin
>
> In a pinch, you can pipe the output through netcat to upload it  
> somewhere directly.
>   

You will have to separately generate a .crc file for the .bin file if 
you want to use copy-nand with it later.

> --
> Ivan Krstić <krstic at solarsail.hcs.harvard.edu> | http://radian.org
>
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