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Make Time Machine use a Local Volume as a Network Volume
Authored by: dfbills on Mar 11, '14 02:35:42PM

I use a local sparsebundle on several of my machines. No special modification necessary.

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-d



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Make Time Machine use a Local Volume as a Network Volume
Authored by: jollyroger on Mar 13, '14 12:21:08PM

As a test, in Mac OS X 10.9, I just:

1. created a new sparsebundle disk image (hdiutil create -size 500G -type SPARSEBUNDLE -fs HFS+J -volname "Time Machine Backup" test.sparsebundle),
2. mounted the new disk image by double-clicking it in Finder,
3. opened System Preferences > Time Machine,
4. clicked "Add or Remove Backup Disks"

The mounted disk image was absent from the list of backup destinations. I've seen this behavior in many past Mac OS X releases as well.

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Jolly Roger



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Make Time Machine use a Local Volume as a Network Volume
Authored by: dfbills on Mar 13, '14 12:36:33PM
I believe you also need to enable unsupported network volumes:

defaults write com.apple.systempreferences TMShowUnsupportedNetworkVolumes 1

And the image needs to be named with the following convention:

"name of your computer" _ "mac address"

Laptop _ 12:0c:cf:dc:b6:26

Final name: Laptop_120ccfdcb626.sparsebundle
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-d


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Make Time Machine use a Local Volume as a Network Volume
Authored by: jollyroger on Mar 13, '14 01:02:25PM

I just tried it:

* the computer name is "server"
* the MAC address of primary Ethernet interface is "23:cd:e9:21:4f:fd"

Here's what I did:

1. renamed the image server_23cde9214ffd.sparesebundle
2. set TMShowUnsupportedNetworkVolumes to 1
3. restarted the machine just to be sure the change would take effect
4. double-clicked the image to mount it
5. opened System Preferences > Time Machine and clicked "Add or Remove Backup Disk"

Still, the mounted volume does not appear in the list.

I even set the *mounted* volume name to "server_23cde9214ffd" (it was "Time Machine Backup" previously), and it still does not appear in the list.

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Jolly Roger



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