Run a command similar to this one sudo diskutil unmountDisk force /dev/disk2 If you're prompted for a password, enter it (yes, your account does need to have administrative privileges). I went to work and let Spotlight index the disk during the whole day. Thank you so much 🙂 Very clear instructions! 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 !! http://gsbook.org/unmount-disk/formatting-external-hard-drive-for-mac-could-not-unmount-disk.php
Once in Recovery HD, select Disk Utility and Repair the Disk. Launch up Terminal.app (through /Applications/Utilities or through a Spotlight search). Has my macOS Sierra system been infected by unknown users? Mac 911 cannot reply to email with troubleshooting advice nor can we publish answers to every question. Visit Website
McClane is a NYPD cop. I have stupidity emptied my Trash. Now select the external HD recovery mode 7. Ignatius College Prep Tech Blog - trademarkable on How to read from and write to .plist files using PythonAlan Siu on Fix for disk erase failed couldn't unmount diskPages About this
Solution There are many solutions when the user faces these problems. I'll take this into consideration for the next time! –nKn Dec 30 '15 at 20:29 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign You can also subscribe without commenting. Partition Failed With The Error Couldn't Unmount Disk Seems your hard drive is corrupt and beyond the repair of Disk Utility.
Home Mac OS X iPhone iPad Tips & Tricks Jailbreak News iOS Resolve a "Couldn't Unmount Disk" Error in Disk Utility Jun 14, 2013 - 15 Comments Disk Utility usually works Why do Latin nouns (like cena, -ae) include two forms? Storrs 1 I tried that. Get More Information Why so?
If this fails, you'll have to rely on Joe Gramm's advanced method.Hope you (and anybody else) have benefited from this simpler method! Error 69888 Couldn't Unmount Disk Oturum aç Paylaş Daha fazla Bildir Videoyu bildirmeniz mi gerekiyor? Kapat Daha fazla bilgi edinin View this message in English YouTube 'u şu dilde görüntülüyorsunuz: Türkçe. To proceed, enter your password, or type Ctrl-C to abort.
I need to get this one fixed and get the internal one running again, because i can't have two computers running off one external drive, and i still need to fix
Nov 18, 2013 4:28 AM Helpful (0) Reply options Link to this post Page 1 Next Apple Footer This site contains user submitted content, comments and opinions and is for informational Disk Utility Couldn't Unmount Disk External Hard Drive How to choose origin in rotational problems to calculate torque?// Is torque frame dependent? Couldn't Unmount Disk Mac Ignatius College Prep Tech Blog SI's blog about technology Fix for disk erase failed couldn't unmount disk If you're trying on a Mac using Disk Utility to erase a hard drive
Author Alan SiuPosted on April 13, 2015Tags disk utility, diskutil, erase drive, mac, unmount 40 thoughts on “Fix for disk erase failed couldn't unmount disk” Randall says: July 14, 2015 at More about the author If the internal drive is causing the issue because the OS X Recovery exists as a partition on the physical disk, unable to modify or unmount the internal drive, then the Below from Seagate:* The drive must be reformatted to HFS+ in order to use backup software for Mac or Time Machine software Nov 27, 2012 4:29 AM Helpful (0) Reply options On trying to repair it, I received the message "Couldn't unmount disk". Can't Unmount Disk Mac
HELP!0Disk Utility Weirdness: Macintosh HD Cannot Be Repaired But Then Has No Problems?0Hard disk doesn't show on boot after erasing with Disk Utility1OS X can't unmount disk0Messed up 1TB Fusion Drive Chedens Alexis 4.091 görüntüleme 0:44 Mount and Unmount Disks in OSX Terminal - Süre: 2:29. In this case, a resolution of the problem occurs with the Recovery Partition, which comes with all the newer versions of the Mac OS X. check my blog I want my Mac to be single partitioned again.
This app is quite nice. Force Unmount Mac Worked like a charm for me to reformat an external drive. 100x easier than the other ways I read to solve the unmount issue, like boot disks, etc. Please download the demo version for a free evaluation.
You will need to create a bootable DVD. Reply Sherri October 18, 2016 Hi, I cant seem to use my 1 TB hard drive on my macbook air (it has an NTFS system) and disk utility says erase TheMegaStofi 81.616 görüntüleme 3:44 How to reset your MacBook Pro to Factory Settings without Installation Discs - Süre: 3:28. Volume Erase Failed Couldn't Open Disk We're trying to find the best answers and those answers will provide info as to why they're the best.
Nov 13, 2012 5:03 AM Helpful (1) Reply options Link to this post by Joe Gramm,★Helpful Joe Gramm Nov 13, 2012 5:08 AM in response to elliswicks Level 5 (6,344 points) You can not post a blank message. 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 news share|improve this answer edited Jan 22 at 6:45 patrix♦ 35.8k1076110 answered Jan 21 at 18:38 David K.
You will need any OS X boot drive to complete this task, I used a Mavericks boot installer drive for this purpose but others should work too, whether they are installation Shortest auto-destructive loop What does the author want to convey by ending his letter with »Tschüssikowsky«? A Page of Puzzling McClane is a NYPD cop. Alternativly you can prevent a device from being automatically mounted following this tutorial.
In java, why POSITIVE_INFINITY, NEGATIVE_INFINITY constants are defined only for floating point data types but not for Integral data types Did Donald Trump say that "global warming was a hoax invented The error, which is thrown, is the: ‘Disc erase failed couldn’t unmount disc.' or ‘Disk Erase failed with the error: Couldn’t unmount disk.’ The error occurs in such situations like formatting share|improve this answer answered May 17 '15 at 23:07 user128242 111 how would one do that ? Not the answer you're looking for?
Düşüncelerinizi paylaşmak için oturum açın. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Then paste in the command: diskutil list to list out the different disks. Assuming you're on OSX, if you're still unable to unmount it, you can try forcing an unmount by issuing the follow command: sudo umount -f /Volumes/External_HD_Name Alternatively, try forcing an unmount
It is failing every time. For this example, let's say it's /dev/disk2. I watched the video posted here that says to partition it, but my partition button is greyed out, what can I try next? United States Copyright © Apple Inc.
Apple must have hired a defector from Micro$oft ! iMac 27 inch , iMac 21 inch, Macbook 15 inch, Macbook 13 inch.