#11856 NORM Not Tri: olpc-os-builder: spurious error messages

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#11856: olpc-os-builder: spurious error messages
--------------------------+-------------------------------------------------
 Reporter:  sascha_silbe  |                 Owner:  dsd                               
     Type:  defect        |                Status:  new                               
 Priority:  normal        |             Milestone:  Not Triaged                       
Component:  not assigned  |               Version:  Development source as of this date
 Keywords:                |           Next_action:  never set                         
 Verified:  0             |   Deployment_affected:                                    
Blockedby:                |              Blocking:                                    
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 When building an OS image using olpc-os-builder from latest git master
 with {{{examples/olpc-os-12.1.0-xo1.5.ini}}}, there are errors in the
 [https://sascha.silbe.org/tmp/121008SS1-build.log build log] despite the
 build finishing apparently successfully. E.g.:

 {{{
   Installing: fontconfig                   ##################### [ 67/757]
 /var/tmp/rpm-tmp.mnA21U: line 5: mkdir: command not found
 /var/tmp/rpm-tmp.mnA21U: line 11: grep: command not found

   Installing: libffi                                             [ 68/757]
 }}}

 It's not clear whether these errors will have negative side effects later
 (like #11854, but during run-time rather than build-time). If they're
 actually expected due to some o-o-b magic, that should be pointed out
 clearly (both during the build and in doc/README), including clear
 guidance as to which errors to expect and what to be suspicious of. Even
 better would be to suppress the errors (but only the expected ones, not
 just redirecting stderr to {{{/dev/null}}}).

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Ticket URL: <http://dev.laptop.org/ticket/11856>
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