Target mode gave me the same error that the disc could not be unmounted Sep 23, 2011 4:41 PM Helpful (0) Reply options Link to this post by dmdimon, dmdimon Sep I tried the other workaround; hdiutil detach, and i get an error saying "Resource busy" please advise Reply Alan Siu says: October 25, 2016 at 8:07 am This should help you Then paste in the command: diskutil list to list out the different disks. Does gunlugger AP ammo affects all armor? have a peek at these guys
thank you so much. Hope this information helps. Reply Shoug says: September 20, 2016 at 12:40 pm i have the same prob and am doing this coz i forget ma macbook password and now !! Open the command line and type the following: diskutil list (press enter to execute the command) You will see something like: 0: GUID_partition_scheme *8.0 GB disk1 Find your disk by size https://discussions.apple.com/thread/3342839?start=15&tstart=0
If you cannot determine which files are open on the disk that you want to verify or repair, restart your computer and then mount the disk again, or start up from Normally, any ‘Couldn’t Unmount Disk' error is attributed to circumstances where the boot drive is being modified or is being used by an application or process. Reply Dina B. iMac 27 inch , iMac 21 inch, Macbook 15 inch, Macbook 13 inch.
But first, please take backup of your important files to the external hard disk drive. theComputerGuru 198,114 views 5:29 Disk utility repair disk error - Duration: 7:11. 121macfreak 76,199 views 7:11 How to Format An External Hard Drive for Mac - Duration: 5:16. Gemsbok Apple Tips and Tricks 3,235 views 6:11 Solution Disk Erase Failed with error Couldn't unmount disk mac - Duration: 3:28. Cannot Unmount Disk Mac Reply Ben says: September 17, 2016 at 2:50 pm Is there a way to work around needing a password?
Loading... Feb 10, 2013 3:37 PM Helpful (1) Reply options Link to this post Previous Page 2 of 5 Next last Apple Footer This site contains user submitted content, comments and opinions Therefore, a bootable thumb drive was a good option. I also have 1TB Seagate external hard drive.
ApertureAlley 72,195 views 3:03 Mac OS X (10.11 El Capitan) - Format Drives with Disk Utility - Duration: 4:52. Force Unmount Mac Error: The underlying task reported failure on exit 1 HFS volume checked Volume needs repair If this happens, use fsck in single user mode, or start up your computer from a You should not physically unplug the drive. Ignatius College Prep Tech Blog on Another opinionated guide to Munki manifestsAlan Siu on Absolute beginner's guide to setting up Munki (not monkey)Sam K on Absolute beginner's guide to setting up
I wouldn't have installed it on an everyday use (production) machine, but I guess what's done is done. GadgetsXray 214,937 views 5:21 How to Format An External Hard Drive for Mac - Duration: 5:16. Disk Utility Couldn't Unmount Disk External Hard Drive Sign in Transcript Statistics 10,446 views 17 Like this video? Partition Failed With The Error Couldn't Unmount Disk Stellar Partition Manager doesn't resize EXFAT partitions.
Sep 23, 2011 2:13 PM Helpful (0) Reply options Link to this post by hoosier, hoosier Sep 23, 2011 2:22 PM in response to Kappy Level 1 (5 points) iCloud Sep More about the author Loading... My Specs are MacBook Pro 2012 4GB 1TB. Could not unmount disk for verification. Can't Unmount Disk Mac
Some of the following steps are destructive and will lose ALL data on your drive. WhyNotVideo211 46,082 views 4:57 How to Fix a Corrupt Mac Harddrive in 10.8 - Duration: 3:03. David A. check my blog The original link is in "http://archive.macfixitforums.com/ubbthreads.php/posts/346000" Eduardo Ferraz 24th November 2015 at 3:12 pm · Reply Thanks a lot!
If it does not say "Verified" then the drive is failing or has failed and will need replacing. Error 69888 Couldn't Unmount Disk If you can't remember it, reset it (you can do so from recovery mode): https://discussions.apple.com/docs/DOC-4101 Reply Jerry says: October 5, 2016 at 5:25 pm thx Reply Nate says: October 25, 2016 His OS X and iOS tips have been some of the most popular posts on the blog.
For older Macs running prior versions of OS X, typically anything running OS X 10.6 or earlier will have a SuperDrive, and thus shipped with a bootable DVD that can serve Reply Eugene May 19, 2015 Why the software is not showing my Boot Camp partition? Note the SMART status of the drive in DU's status area. Volume Erase Failed Couldn't Open Disk Note down the disk identifier.
So now i have two broken internal hard drives. Please download the demo version for a free evaluation. MusicTechHelpGuy 15,785 views 4:52 Secret of "dead" external HARD DRIVES! http://gsbook.org/unmount-disk/disk-macintosh-could-not-unmounted.php CompHelperKid 19,588 views 6:50 HOW TO: Delete a partition on Mac - Duration: 1:29.
There are just no dots or asterisks to indicate so. King May 23, 2016 I am trying to restore my Mac OS X El Capitan from an external drive to my Mac HD. Show more Language: English Content location: United States Restricted Mode: Off History Help Loading... You can also subscribe without commenting.
If you try to verify a non-journaled disk, Disk Utility will display this message: "ERROR: could not freeze volume (Operation not supported)." During a Live Verification, the Disk Utility progress indicator Tried everything under disk utility, couldn't unmounted disk or said couldn't open disk, depending which disk. Up next How to force a Hard Drive to unmount for formatting in Mac OS X Disk Utility - Duration: 6:11.