I have two laptops that back up via Time Machine to a Time Capsule. The shared volume on the Time Capsule contains two .sparsebundle files.
Can I copy those .sparsebundle files to an external hard disk and expect them to work as Time Machine backup resources again?
I usually send my Time Machine hard disks to a remote location every few months. With the Time Capsule I don't want to do that. That's whyt I want to copy the data and need to know whether I can still restore from it if I do.
Best Answer
Almost certainly yes.
Modes and ownership
Ideally, use
chmod
(1) andchown
(8) to have the mode and ownership, of the copy of the disk image, consistent with how Mountain Lion normally creates a local disk image for Time Machine.Example
– and for each band, you should have:
Attaching the copy of the disk image
With Terminal, for the example above:
If you use Terminal from within Recovery OS: you'll probably not need the
sudo
prefix to the command.Additional detail
You require:
Assumption
You wish the copy to be usable, for restoration only, in the event of loss or failure of the Time Capsule.
If the disk is attached from a local image where modes and ownership vary from the norm for a local image:
Thoughts
If you're preparing for the possibility of loss or failure of a Time Capsule – and restoration from a copy of what was there – then think a step further, to backing up without the original Time Capsule. (If you wish the copy to be writeable by Time Machine, that could be a separate question.)
All things considered
It's probably quicker and simpler to use the external hard disk, or a part, as a Time Machine destination.