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10.5: Repair Time Machine after logic board changes
Authored by: barrysharp on Feb 02, '08 01:46:42PM

TM is tightly coupled with a specific Mac. If you have two Macs and one External HDD the one HDD can be used by both Macs but there will be two TM folders created - one for each Mac. TM will know which one is associated with its machine so there's no worry there.

The OS for the PPC and Intel-based Macs are different so you don't want to sync the TM backups between them. Treat them separately is my advice.

If you want to sync user data between both Macs use the .Mac sync-ing feature as best you can. There are other ways for sync-ing user-level data between machines also.

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Regards... Barry Sharp



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10.5: Repair Time Machine after logic board changes
Authored by: dethbunny on Feb 03, '08 12:43:26PM

Actually, as of Leopard, it's quite easy to build a system that works for both architectures and has a complete installation.

1) partition a drive in the GUID style
2) install Leopard using an Intel Mac
3) clone installation to an APM-partitioned drive



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10.5: Repair Time Machine after logic board changes
Authored by: johnsawyercjs on Mar 29, '08 10:18:58PM

What happens when you run Software Update, or any kind of installer or other updater, on such a universal drive? Can we assume that all updaters and installers will be available in a universal version, and if so, that Software Update will automatically install a universal version? I'd be concerned that, when the drive was connected to an Intel Mac, that at least for some updates, at least in Software Update, Intel-only code would get installed, with no option given to the user to make a choice, and the equivalent/reverse would happen when the drive was connected to a PPC Mac. If this is so, this would still argue for the use of two separate volumes on an APM-formatted drive, one for Intel OS X, and one for PPC OS X.



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