[Trac #638] olpc-bios-sig needs to be less strict

[Zarro Boogs per Child]

#638: olpc-bios-sig needs to be less strict
----------------------+-----------------------------------------------------
 Reporter:  dilinger  |       Owner:  blizzard 
     Type:  defect    |      Status:  new      
 Priority:  normal    |   Milestone:  Untriaged
Component:  distro    |    Keywords:           
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 /usr/bin/olpc-bios-sig is used to print out the bios revision, as well as
 to test whether we're looking at a newer bios; however, it makes an
 assumption that the bios version will be of the form Q2A[0-9][0-9].  This
 breaks if we have Q2B11 (as was just released) or if we hit triple digits
 in the version.

 This is the reason why X breaks when we upgrade the bios to Q2B11 and use
 an image that hasn't yet been configured; we end up using geode-xorg.conf
 rather than dcon-xorg.conf.

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Ticket URL: <http://dev.laptop.org/ticket/638>
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