Is there a safe way to move a Time Machine backup on an external USB hard drive to a Time Capsule?
Yes, it's straightforward to do it, even though it would take quite sometime to complete depending on the size of your current backups. Follow the detailed procedure at Copy Local backups to be used on a NETWORK.
Here's a summary of what's required and the steps.
The backups go into a sparsebundle on a
Time Capsule. So you need to create that sparsebundle on the
Time Capsule, mount it in
Finder and then copy over everything from your USB drive into the mounted volume.
Here are the basic steps with some additional information:
Time Machineto back up to the
Time Capsuleand start a backup. This will make it create the sparsebundle.
- Cancel the backup once the copying starts (as seen in the progress window).
- Mount the
Time Machine Backupssparsebundle in
Finderby double-clicking it (or using Cmd+Down Arrow)
- Delete the
Backups.backupdbfolder inside this volume (you'll be replacing it with the backup you already have).
- Open your current
Time Machinebackup USB drive in
Finderand copy the
Backups.backupdbfolder from it to the
Time Machine Backupspartition (mounted from the
- Enter your administrator password and accept the prompts (this may happen a couple of times).
This would appear to no longer work in El Capitan as the sparsebundle mounts as read only. Feb 26, 2016 at 18:13
I'm on El Cap and I didn't have that problem. I would suggest however after step 2 to turn Time Machine off so it doesn't try to backup to the time capsule while you are also manually copying.– malhalMar 18, 2016 at 12:52