opkgiga.blogg.se - Time machine could not unmount disk

If Time Machine is still unable to complete a backup, please note the alert message it sends. If they are not the same, you need to erase the partition and select the format to the same as Startup drive. The format of this drive should be the same as your Startup drive.

If you are not sure, please check in Time Machine Preferences.

Select the line for your external drive that you set up to backup files.

In Format it is Mac OS Extended (Journaled).

On the bottom you will see detailed information of this HD.

Select Startup drive, it usually names Macintosh HD on the second line of the side bar.

Open Disk Utility in Applications>Utilities folder.

Follow the steps to set up using Disk Utility. If this is your first backup, or the first time to a new external drive/partition, the most common cause might be that the drive has not been formatted properly.

It supports to recover videos, photos, documents, app data and more after deletion or format. If you lost files due to backup failure, UltFone Mac Data Recovery can help you recover with no worries.