#6470 NORM Never A: olpc-update doesn't let users manage their software builds

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#6470: olpc-update doesn't let users manage their software builds
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  Reporter:  gnu              |       Owner:  cscott                           
      Type:  defect           |      Status:  new                              
  Priority:  normal           |   Milestone:  Never Assigned                   
 Component:  upgrade utility  |     Version:  Development build as of this date
Resolution:                   |    Keywords:                                   
  Verified:  0                |    Blocking:                                   
 Blockedby:                   |  
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Comment(by cscott):

 Yes.  But files which are identical between versions are hardlinked under
 the covers.  Unfortunately, it is possible to write through the hard link
 to modify the "other" one.  rsync does the right thing when updating, so a
 new build always gets an appropriately pristine copy.

 Unionfs is the way to go long term.

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Ticket URL: <http://dev.laptop.org/ticket/6470#comment:8>
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