Quote:
Originally Posted by DeathtoToasters
Ahhh exaclt why I updated both macbook's yesterday with all updates :). So they are all exactly in sync as far as the OS is concerened.
Then I did the backup of the old.
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That may work for your specific case, but the technique is not generally reliable.
The problem is that "exactly in sync as far as the OS is concerened" can not be reliably determined by just comparing the OS release numbers or even by using
Software Update to make sure everything is "up to date".
The (e.g.) 10.5.7 that comes on/with a new Mac may not be exactly the same as the 10.5.7 that is available as a software update. The version that comes on a new Mac is almost always slightly different than the version it says it is. If it came with 10.5.7, you really need to think of what is on there as "10.5.7.1". This is especially likely for a model that was recently released or updated, but it could apply to any new machine.
The new hardware needs the extra drivers and such that are included in the figurative, extra ".1" of "10.5.7.1". A plain 10.5.7 that was upgraded from a previous release of 10.5 will not have this extra ".1" stuff that the new machine needs.
If the machine is old enough (though still "new"), its drivers might have been included in 10.5.7. But in general, it is not safe to take an OS installation that has been upgraded to 10.5.7 and try to run it on a machine that came with 10.5.7 (it may actually be "10.5.7.1" that it requires).