
- Cannot unmount disk error mac how to#
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I had to reboot again, and eventually my hard disk no longer appears in Disk Utility. 'Repair volume failed with error could not unmount disk'

It wouldn't let me repair the disk as I kept getting this error: I booted off the Tiger DVD and ran disk utility to fix and repair permissions again. Eventually it wouldn't get past the white apple screen. I checked file permissions, rebooted and it just kept on getting slower. Today my 12" G4 powerbook started to become slow, lots of spinning wheel, delayed menus etc.
Cannot unmount disk error mac pro#
MacBook Pro (13-inch Mid 2010), OS X Mavericks (10.9.4), External Hard Drive View 2 Replies View Related PowerPC :: Hard Drive Not Working / Repair Volume Failed Could Not Unmount Disk Jul 17, 2009 I have gone into disk utility and tried to erase, partition, and/or repair the disk, but repeatedly get error messages - it can't erase the disk, re-partition the disk or unmount the disk. Now (after 10 days with a successful back-up), the computer will not back-up. I have a MacBook Pro running OSx 10.9.4 and have been successfully using Time Machine with a WD My Passport External Hard Drive for a while. View 3 Replies View Related MacBook :: OS X Mavericks (10.9.4) Can't Erase / Partition Or Unmount External Hard Drive Aug 28, 2014 I do not see where there is a option to have more than on disk chosen for this purpose so am unsure why the disk utility is seeing the old partion as still in use. The only program that utilized this partition is Carbon Copy Cloner which is not being utilized on the new 3TB drive.

It says it will not eject becaus e a program may be using it. Using disk utility one of the partitions deleted without incident when following the same protocol the second partition produced error messages. I want to completely erase all data from the drive in order to use it for a different use. The 3 TB drive was successfully partitioned through the disk utility and both back ups are installed and the initial back up is complete. I replaced a 1 TB external drive partiotioned in 2 with a 3 TB extrnal drive run/store my corbon copy cloner back up and time machine. OS X Mountain Lion :: Cannot Unmount Or Erase Partitioned External Hard Drive Jun 21, 2014
Cannot unmount disk error mac software#

Cannot unmount disk error mac how to#
Cannot unmount disk error mac install#
Cannot unmount disk error mac mac os x#
