I have transported my user account from my old Mac to my new Mac (using the Migration Assistant application) some weeks ago. Yesterday, I happend to click on the Data-drive from my TimeCapsule in the Finder, and I noticed that the TimeMachine backup-file (.sparsebundle-file) is still named after my old Mac… the name hasn’t changed to the new Mac’s name…
I find this utterly confusing. Is there something I can do to change the name of the .sparsebundle-file ?
Yes there is, but it appears not all versions of the TimeMachine software are happy with changing the name of the .sparsebundle-file by the user.
So if you want to change the name of a TimeMachine backup-file (.sparsebundle-file) but wish to minimize the risk of corrupting your entire TimeMachine backup-file (one thus loosing all your data), follow this procedure :
1- make sure you are operating your Mac from a user account with administrator rights
2- go to Apple –> System Preferences –> Sharing
3- there, change the “Computer Name” to a name that identifies you new Mac (and the .sparsebundle-file)
4- then, go to the TimeMachine-icon in the Finder’s top menu bar and select “Back Up Now” from the pulldown menu
5- wait for the TimeMachine backup has finished (this might take longer than normal), and check to see if the .sparsebundle-file has been renamed (go to your TimeMachine backup drive using the Finder to do so)
The above will probably be sufficient if you are running MacOSX 10.7 “Lion”, OSX 10.8 “Mountain Lion” or OSX 10.9 “Mavericks”, and if it works, it’s the preferred way for changing the name of the .sparsebundle -file, as it minimises the risk on corrupting your backups. So, always try the above procedure first !
If you are running MacOSX 10.6 “Snow Leopard” or earlier (probably even Mac OSX 10.4 “Tiger” and even PowerPC Macs with G4 and G5 processors that can run the Time Machine software), and the above procedure didn’t change the name of the .sparsebundle-file, try this :
– duplicate your .sparsebundle-file to another harddisk, or select a new backup harddisk to make an entirely new TimeMachine backup to (to make sure you have a backup in case you accidentally mess up ; if your sparse bundle-file is your one-and-only and irreplaceable backup, make sure you do this !)
– make sure the .sparsebundle-file is operating correctly by testing it using the “Enter TimeMachine”-option from the pulldown menu that appears when clicking on the TimeMachine-icon in the Finder’s menu bar
– make sure you are logged in as a user with Administrator rights
– click on the TimeMachine-icon in the Finder’s top menu bar and select “Back Up Now”
– after the backup has finished, go to your (primary) TimeMachine-drive in the Finder, click on the .sparsebundle-file and change it’s name
– then, go to the TimeMachine Preferences (either through the System Preferences or through the pulldown menu from the TimeMachine-icon in the top bar of the Finder)
– there, switch off TimeMachine and exit the System Preferences
– then, open the TimeMachine Preferences (within the System Preferences) again, and switch TimeMachine back on, then exit the System Peferences
– then, go to your (primary) TimeMachine-drive in the Finder again, and check if the name of the .sparsebundle-file has changed
– if the name has changed, check if the TimeMachine-backup works (try to access it by clicking “Enter Time Machine” from the pulldown menu that appears under the TimeMachine-icon in the Finder’s top menu bar), if that works, that’s it, you’re done !
– if somewhere along the procedure, something didn’t work as expected, restart your Mac and try again
– if it name change still won’t stick after several tries, make sure the “Computer Name” of your Mac is named exactly as you like in the Network Preferences (within the System Preferences) and then create an entirely new TimeMachine-backup : add a new drive for TimeMachine-backups (or remove the existing drive and then add the same one again) in the Time Machine Preferences (within the System Preferences), then click “Back Up Now” from the pulldown menu when you select the TimeMachine-icon in the Finder’s top menu bar… and wait…
That should be it.
Note : the .sparsebundle-file extension might not be visible ; you can turn it on (or off) in the file’s “Get Info”-window (accessible when right-clicking on the file’s icon in the Finder)