- #Image a mac hard drive for restoring through time machine how to#
- #Image a mac hard drive for restoring through time machine upgrade#
- #Image a mac hard drive for restoring through time machine portable#
- #Image a mac hard drive for restoring through time machine plus#
To do this, you simply enable encryption for the dmg, so you'd use something like: % hdiutil create TimeMachineImage -encrypted -size 50g -fs HFS+ -volname TimeMachineDisk This also opens up some other options, the most important of which is the ability to encrypt your TimeMachine backups. You could then move TimeMachineImage.dmg to another drive for TimeMachine backups. You can be assured that you won't grow over the 50GB size you want to use and the space is already reserved on your external drive, so it won't grow larger to squeeze you out of space. You would then go into the preferences and choose /Volumes/TimeMachineDisk as the backup drive. % hdiutil create TimeMachineImage -size 50g -fs HFS+ -volname TimeMachineDisk So as an example, let's say you have a 2TB external drive, but you want to reserve 50GB for the TimeMachine backup and you'd like to be able to move the backup to another external drive, even one which already has content.
#Image a mac hard drive for restoring through time machine portable#
This won't be a help to you right now, but for someone starting from scratch who wants a portable TimeMachine backup (with the side benefit of being able to limit the portion of the disc used for TimeMachine), I suggest using a mounted disk image (.dmg) as the target for TimeMachine's backup disk. See What is Time Machine doing? on Server Fault. You can reclaim the space manually, and it may free a lot of space (possibly making migrating to a larger disk unnecessary, or at least giving your new disk all the possible space).
#Image a mac hard drive for restoring through time machine how to#
(There are also instructions for Time Capsule and Mac OS X v10.6: How to transfer your back up from an existing Time Capsule to a new one.)Īs a side note: when you are using a sparse bundle (like for remote backups) and if you made backups of really large files, then deleting those files from the backup (either manually or when Time Machine removes expired daily and hourly backups) will not automatically reclaim the disk space - until Time Machine really needs it.
#Image a mac hard drive for restoring through time machine plus#
Now, on your new hard drive, you will have all of your existing backups from the previous backup hard drive plus have more room for more new backups. Select your new hard drive, then click "Use for Backup.".In Time Machine System Preferences click "Select Disk…".This may take some time to complete because all your backups will be copied. Enter an administrator user name and password, then click OK to start the copying process.Drag the folder "Backups.backupd" to the new hard drive.
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Make sure "Ignore ownership on this volume" is not enabled.Select the new drive's icon on the desktop and choose Get Info from the File menu.Note: Back up any data on the hard drive before you format it. If you do not know how, see the steps in this article. If needed, reformat the drive as Mac OS Extended with a GUID partition.
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#Image a mac hard drive for restoring through time machine upgrade#
If you upgrade to a new hard drive with a larger capacity, you may want to transfer your existing Time Machine backups to it before using it for regular backups. Mac OS X v10.6: How to transfer your back ups from your current hard drive to a new hard drive For 10.6, Apple has included the following in Mac 101: Time Machine: