Time Machine - replacement machine - backs up everything again

I replaced a MacBook Pro with a new one, transferring everything during
installation.

I made TimeMachine accept the new machine as the same by this procedure:
http://www.macosxhints.com/article.php?story=20080128003716101
(telling TM the new MAC address for the machine name).

TM recognised the new machine under the same name, but still backed up
anew the full 200 GB.
How could I have avoided wasting this space?
Thinking now I could have forgotten to unmount and remount the disk,
could that be the reason?

TIA

Marc

--
remove bye and from mercial to get valid e-mail
<http://www.heusser.com>
.

Relevant Pages

  • Re: Download (I Think) Question
    ... have some way of transferring the files (assuming your old one didn't ... die) - the game doesn't have to actually be installed as such, ... copying an existing installation should work fine. ... No, the computer didn't die. ...
    (alt.games.warcraft)
  • Re: RPCemu vs. VRPC
    ... installation, e.g. a clashing piece of software installed on the OS X ... VARPC machine freezes, but this may be some other cause. ... I'm running VRPC Adjust on a 2006 ... 15" Macbook Pro. ...
    (comp.sys.acorn.misc)
  • Re: Clone XP to new HD
    ... Make sure that you backup your important files before transferring images. ... would try a repair installation,AKA, an in place installation just for fun. ... Is there anything I need to do with the XP OS on my old hard disk before I ...
    (microsoft.public.windowsxp.general)
  • Re: Download (I Think) Question
    ... have some way of transferring the files (assuming your old one didn't ... die) - the game doesn't have to actually be installed as such, ... copying an existing installation should work fine. ... No, the computer didn't die. ...
    (alt.games.warcraft)
  • Re: SuperDuper und Time Machine
    ... ob mir TimeMachine nicht die Installation von ... Subversion oder ähnlichem Zeugs erspart. ...
    (de.comp.sys.mac.misc)