Recently, I purchased a new macbook pro(13", mid 2012, osx 10.8.2) to replace my 2008 macbook (13" 10.7.6). I used migration assistant to transfer everything over, and that part worked well. My time capsule(shared with several other users) is near full. It can't add my new laptop to its backup, because the time capsule thinks it needs to preform an entire system backup first time round. I have less than 20gb free on the time capsule and over 100gb on my hardrive. Most of the information on my new laptop overlaps with that of the old one, which is no longer backing up and out of use. Is there a way I can make the time capsule "piggyback" off of the original existing sparsebundle and pick up from there? Any suggestions would be appreciated!