question about upgrade

[Tang Ho Yim]

Hi,
   
  From the beginning, I just install the base distribution of FreeBSD 5.4, no other package like man, games, compat4x.....
   
  After make buildworld & installworld to Release 5.4 p12, it seems all of the world will be installed.....( if I have a mistake, please tell me ! )
   
  So, how can I upgrade the machine with just the distribution I installed before ?
   
  Thanks !

		
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