Time machine backup failure. Cannot find target disk

hajime

macrumors 603
Original poster
Jul 23, 2007
5,973
829
Hello, I bought a Lacie 2TB drive. At first I intended to use it to back up Windows partition. So, I reformatted it as exFAT. Then, I changed my mind and wanted to use it as a TimeMachine backup drive. I went to disk utility to reformat the drive as Mac OS Extended (Journaled) format. However, TimeMachine keeps saying that it cannot find the target disk and as a result, backup failed. I reformatted to Mac OS Extended (Journaled) format again but same problem. Know how to fix this?
 

ddmcnair

macrumors member
Apr 25, 2011
63
11
In Disk Utility there should be the two levels for the drive. One is the for the drive and one is for the partition. Make sure the drive is formatted with OS X Extended Journaled and the scheme is GUID Partition Map.
(The highlighted area is the drive (OS X Journaled / GUID Partition Map))
Screen Shot 2016-05-14 at 12.23.48 PM.png

Once the Partition is created make sure it is formatted as OS Extended Journaled.

(The highlighted area is the partition (OSX Extended Journaled))
Screen Shot 2016-05-14 at 12.23.09 PM.png
If that doesn't work, you may just have a bad drive. Good Luck!
 

hajime

macrumors 603
Original poster
Jul 23, 2007
5,973
829
Thanks but unfortunately, the issue remains to be the same.

. When I checked the disk info, I found: hajime, system, everyone and wheel are listed. There is no user account called wheel on my computer. Is my computer hacked?
 

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