#5051 NORM Update.: activity isolation interferes with update

[Zarro Boogs per Child]

#5051: activity isolation interferes with update
----------------------+-----------------------------------------------------
 Reporter:  cscott    |       Owner:  mstone  
     Type:  defect    |      Status:  new     
 Priority:  normal    |   Milestone:  Update.1
Component:  security  |     Version:          
 Keywords:            |    Verified:  0       
----------------------+-----------------------------------------------------
 The mechanism being used to write new group ids for activity isolation
 seems to write through the hard link to the pristine copy.  This means
 that if an activity is launched during olpc-update, it can cause the
 update to fail.  (Verification fails examining gshadow-, for example.)

 We should either un-hard-link the user/group files or ensure that activity
 isolation uses the preferred 'write updated copy, move into place' update
 mechanism.

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Ticket URL: <http://dev.laptop.org/ticket/5051>
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