OK, we've tried to be nice, but is the disk STILL not letting you work with it? I have stupidity emptied my Trash. Easy Steps 13.433 weergaven 4:05 How To Format a USB drive on Mac - Duur: 5:29. Tried to force unmount to no avail. http://darrenmanning.com/disk-utility/disk-utility-disk-erase-failed-error-could-not-unmount-disk.html
Locate your drive and right click on it. Solution There are many solutions when the user faces these problems. Log in om dit toe te voegen aan de afspeellijst 'Later bekijken' Toevoegen aan Afspeellijsten laden... Helpful (0) Reply options Link to this post by Dr.Mac., Dr.Mac. http://apple.stackexchange.com/questions/125965/unable-to-format-erase-hard-drive
Reply Ian Small says: January 30, 2016 at 2:57 pm Brilliant! Does that make a difference? current community blog chat Ask Different Ask Different Meta your communities Sign up or log in to customize your list. Reply Scott says: February 12, 2016 at 1:43 pm Great tip.
Reply Alysia March 15, 2016 I'm trying to format a new external hard drive and it is not working. aleks dude 15.612 weergaven 4:00 Repairing Your Mac Hard Drive in Disk Utility - Duur: 3:58. 121macfreak 124.740 weergaven 3:58 How to make any External Hard Drive work on Mac OS http://crystalmark.info/software/CrystalDiskInfo/index-e.html permalinkembedsavegive gold[–]SubparAsEver 0 points1 point2 points 9 months ago(0 children)Sounds permissions-related honestly. Disk Utility Erase Format Everything prompts an unmount error.
Support Apple Support Communities Shop the Apple Online Store (1-800-MY-APPLE), visit an Apple Retail Store, or find a reseller. iMac, OS X Mavericks (10.9.1) Posted on Jan 21, 2014 1:45 PM I have this question too Close Q: Disk Erase failed with the error: Couldn't unmount disk. I've tried the original text and the one you suggested to Jon and it still says ‘command not found' Any ideas what's up?
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Then use activity monitor to force the process to quite and then redo the partitioning. To create your own bootable disk, refer to our blog ‘Creating a Mavericks bootable install disk'. Disk Utility Erase Disk Or Volume And hopefully fix it from there? Disk Utility Erase Greyed Out Jan 21, 2014 3:27 PM in response to studio_ Level 3 (636 points) Jan 21, 2014 3:27 PM in response to studio_ Open the Terminal, and type the following command: diskutil
Skip to content St. http://darrenmanning.com/disk-utility/disk-utility-disk-erase-failed-error.html i can't complete this w/o a password !! Should I serve jury duty when I have no respect for the judge? You can find that out in disk utility, select the drive, click info, and look under 'BSD device node' share|improve this answer answered Jan 8 at 6:21 Chris 26559 Disk Utility Erase Free Space
Paul Maddison 11.387 weergaven 2:29 Disk erase failed couldn't unmount disk - Duur: 0:44. Please type your message and try again. I did Google your error, and came across this workaround. his comment is here Then paste in the command: diskutil list to list out the different disks.
If you have an external bootable disk, connect this to your Mac and power your Mac up whilst holding down the OPTION/ALT key. Disk Utility Erase Partition WhyNotVideo211 41.093 weergaven 4:57 How to restore MacBook pro - Duur: 6:06. Log in om deze video toe te voegen aan een afspeellijst.
Enter your admin password if prompted. Im having the exact same issue.. –user88264 Aug 20 '14 at 12:37 add a comment| 5 Answers 5 active oldest votes up vote 10 down vote I found this worked perfectly Enter your admin password if prompted. Disk Utility Erase Couldn't Unmount Disk thank you so much.
Not the answer you're looking for? Helpful (0) Reply options Link to this post by studio_, studio_ Jan 21, 2014 3:17 PM in response to Kappy Level 1 (2 points) Jan 21, 2014 3:17 PM in response Filter By Category Mac (Unsolved) iOS (Unsolved) iTunes (Unsolved) All Unsolved All Solved Want a Flair? weblink Invoking metadata API call using JSFORCE Trying to create safe website where security is handled by the website and not the user Zero Emission Tanks Topology and the 2016 Nobel Prize
A reboot sorts this out. share|improve this answer answered Apr 28 at 11:59 RichVel 10919 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up in any way. You will need to create a bootable DVD.
Reply cookie says: January 13, 2016 at 1:21 am Thank you for the auspicious writeup. theComputerGuru 189.094 weergaven 5:29 Disk utility repair disk error - Duur: 7:11. 121macfreak 67.733 weergaven 7:11 Mac OSX Lion How to do a Clean Install - Duur: 9:53. I simply selected it and formatted it and voila! Worked for me this morning.
Alysha S. 9th August 2015 at 7:12 pm · Reply I've got mine booted into a Yosemite installation USB.