#11682 NORM 1.75-fi: Corrupted bootfw files are fatal to secure boot; ecfw updates are not

[Zarro Boogs per Child]

#11682: Corrupted bootfw files are fatal to secure boot; ecfw updates are not
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           Reporter:  greenfeld            |       Owner:  wmb at firmworks.com                
               Type:  defect               |      Status:  new                              
           Priority:  normal               |   Milestone:  1.75-firmware                    
          Component:  ofw - open firmware  |     Version:  Development build as of this date
         Resolution:                       |    Keywords:                                   
        Next_action:  review               |    Verified:  0                                
Deployment_affected:                       |   Blockedby:                                   
           Blocking:                       |  
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Comment(by Quozl):

 Even if there was requirement to force a laptop not to boot on the grounds
 that a specific version of EC firmware is required ... this could be
 implemented in olpc.fth, so there's no need for it to be done in OFW.

 I don't expect the ecfw.zip feature will get any use, but I'm fine with it
 existing.  I agree it is not particularly essential.

 The ecfw.zip feature will work from external media as well, so a
 deployment may craft a USB drive for EC update.  It would be faster than a
 USB drive for combined OpenFirmware and EC update, as there would be one
 less restart.  Also a new build of OpenFirmware would not be required.

 So the question of this ticket is ... should a corrupted ecfw.zip on a USB
 drive prevent boot in the same way that a corrupted bootfw.zip file does?
 I think so.

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Ticket URL: <http://dev.laptop.org/ticket/11682#comment:6>
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