[Trac #1115] it's easy to mess up copy-nand in OF

[Zarro Boogs per Child]

#1115: it's easy to mess up copy-nand in OF
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 Reporter:  andrey               |       Owner:  wmb at firmworks.com
     Type:  defect               |      Status:  new              
 Priority:  normal               |   Milestone:  Untriaged        
Component:  ofw - open firmware  |    Keywords:  nand,flash       
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 Hello.  I wanted to report that it is easy to sort of brick an OLPC during
 the NAND upgrade.  The '\' key is right next to the Enter key, so I meant
 to run:

 ok copy-nand disk:\boot\nand303.img

 but wound up with:

 ok copy-nand disk:\boot

 As a result, every block of the Flash got marked as bad, so not I am not
 sure what can be done to unmark it and write an image.  I realize that
 there isn't much room for error checking on user input but it might be
 helpful in this case.

 Additionally, is there a way to reset the bad blocks so that I can repair
 this laptop?  I tried flash_eraseall from a USB disk but it skips bad
 blocks.  This is a B1 by the way.

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Ticket URL: <http://dev.laptop.org/ticket/1115>
One Laptop Per Child <http://laptop.org/>