>From Main.log we see: 2014-01-18 22:19:47,125 DEBUG Marking 'ubuntu-desktop' for upgrade 2014-01-18 22:19:47,726 WARNING Can't mark 'ubuntu-desktop' for upgrade (E:Unable to correct problems, you have held broken packages.) 2014-01-18 22:19:47,861 DEBUG blacklist expr 'unity$' matches 'unity' 2014-01-18 22:19:47,861 DEBUG The package 'unity' is marked for removal but it's in the removal blacklist 2014-01-18 22:20:04,942 ERROR Dist-upgrade failed: 'The package 'unity' is marked for removal but it is in the removal blacklist.'
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