

I tried a different command but received the same failure:ĭiskutil unmount /Volumes/Time Machine Backups However, I could not dismount this external hard drive with this command: I had to use the terminal in Macintosh operating system 10.13 which is High Sierra. “The volume can’t be ejected because it’s currently in use.” I was NOT able to dismount this external drive. I received numerous errors with this external hard disk. Now start your Macintosh and hook up backup disk and see if you can reformat it. Also, you could power off your Macintosh. You could restart your Macintosh and try to reformat backup disk.

Then erase the disk and see if Time Machine backup will now work. If you have any important files, move them from your backup disk. The first backup may take a considerable longer period of time to complete.ĭid disk utility find a problem with your hard disk? You could try erasing your disk. Continue on until Time Machine begins backing up data. You can enable automatic backups by selecting “Backup Automatically”. Choose your hard disk that you want to backup data to. Select the “Time Machine” icon from within “System Preferences”. Browse to “System Preferences” by clicking the Apple icon in the top menu.

Here is the original initial request:Īre you having problems with Time Machine backups on your Macintosh? Time Machine should already be installed. Another computer problem, this time on Apple Macintosh operating system.
