Or if you have any other files open that came pre-installed on the drive, close them. Sıradaki How to force a Hard Drive to unmount for formatting in Mac OS X Disk Utility - Süre: 6:11. These are: (1) Fixing with Partition Manager If the OS X is denying you to format, erase and repair the Mac hard drive or a volume due to the Couldn’t Unmount Disk’ Reboot the Mac holding down the "Option" key and choose the Recovery partition Select "Disk Utility" from the boot menu Go to "First Aid" to verify and repair the disk, or Check This Out
Fields that can be ordered in more than one way How to select a number from all the integers list? 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 Bu videoyu bir oynatma listesine eklemek için oturum açın. WhyNotVideo211 46.082 görüntüleme 4:57 How to ║ Restore Reset a Macbook A1278 to Factory Settings ║ Mac OS X - Süre: 3:58. get redirected here
So I found this page and tried everything. Gemsbok Apple Tips and Tricks 3.235 görüntüleme 6:11 Mount and Unmount Disks in OSX Terminal - Süre: 2:29. Reply Monish d kothari says: September 13, 2015 at 6:13 am Thanks a tonne for the help… It resolved my issues ….
How can I make this resizing possible? All Rights Reserved. theComputerGuru 198.114 görüntüleme 5:29 How to Verify and Repair a Disk From the OS X Command Line - Süre: 2:53. Error 69888 Couldn't Unmount Disk JrTech 1.672.890 görüntüleme 3:45 How to make any External Hard Drive work on Mac OS X - Süre: 4:33.
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 Volume Erase Failed Couldn't Unmount Disk Click on the Erase tab in the DU main window.5. After the installer loads select your language and click on the Continue button. CompHelperKid 19.588 görüntüleme 6:50 Thirty years of Mac ads (1984-2014) - Süre: 15:32.
MacRumors attracts a broad audience of both consumers and professionals interested in the latest technologies and products. Volume Erase Failed Couldn't Open Disk Düşüncelerinizi paylaşmak için oturum açın. When I go to repartition the drive it fails and tells me that it cannot unmount the disk. Reply Joel May 18, 2015 My Mac is single drive partitioned but I created another partition named "Mac HD2" to download Yosemite on it.
Then select the desired external drive from the startup manager screen and press the enter key.
Reply Ben says: September 17, 2016 at 2:50 pm Is there a way to work around needing a password? Disk Utility Couldn't Unmount Disk External Hard Drive 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? Partition Failed With The Error Couldn't Unmount Disk Now with the help of the Mouse pointer, drag the sidebar to resize your Mac HD 2 partition.
You can use "sudo lost | grep dev/disk?" where "? his comment is here Kapat Evet, kalsın. Geekanoids 166.323 görüntüleme 9:53 How To Format a USB drive on Mac - Süre: 5:29. Reply Jimmy Kiddo says: August 13, 2016 at 10:05 am Man, you are a genius,,,worked like a charm Reply Brock says: September 15, 2016 at 7:54 am This worked for me Can't Unmount Disk Mac
Reply Jon says: April 18, 2016 at 9:55 am When I try to do this I get an errror on the terminal saying Sudo command unknown… Any ideas? But first, please take backup of your important files to the external hard disk drive. Worked perfectly after many failed "solutions". http://gsbook.org/unmount-disk/disk-macintosh-hd-could-not-unmount.php Thanks.
Thank you so much. Force Unmount Mac This resolve my case. Reply Leave a Reply Cancel reply Your email address will not be published.
Let us know a. Make sure to search before asking. –grgarside Jun 9 at 11:33 add a comment| up vote 1 down vote Disable Spotlight for that Hard Drive (System Preferences) https://discussions.apple.com/thread/1454712?start=0&tstart=0 share|improve this answer Geri al Kapat Bu video kullanılamıyor. İzleme SırasıSıraİzleme SırasıSıra Tümünü kaldırBağlantıyı kes Bir sonraki video başlamak üzeredurdur Yükleniyor... İzleme Sırası Sıra __count__/__total__ Solution Disk Erase Failed with error Couldn't unmount disk At Least One Volume Could Not Be Unmounted Right now i have the macbook booted on the external on el capitan and I'm going to go through the whole process over again for this computer.
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 Zognoh 806.136 görüntüleme 3:28 How to Format An External Hard Drive for Mac - Süre: 5:16. Yükleniyor... navigate here Useful Searches Recent Posts Options Please select a forum to jump to News and Article Discussion MacRumors.com News Discussion Mac Blog Discussion
wt to do pls i need help .. Alysha S. 9th August 2015 at 7:12 pm · Reply I've got mine booted into a Yosemite installation USB. Yes, add me to your mailing list. Then I could mount and unmount on the Mac OS X Disk Utility.
You can also subscribe without commenting. For the older Mac OS X like 10.6 or earlier, the opportunity lies in a SuperDrive and a bootable DVD, and this can also offer the same resolution. (3) Fixing With Tuts+ Computer Skills 484.865 görüntüleme 4:47 Repairing Your Mac Hard Drive in Disk Utility - Süre: 3:58. 121macfreak 132.001 görüntüleme 3:58 Mac OS X 10 11 El Capitan : Use First Please let me know if this resolves your issue.
I ejected that, and was able to partition immediately. If the external El Capitan absolutely refuses to unmount the disk, can you try booting into Recovery Mode (hold down Cmd-R while booting up) and then using Disk Utility there? Newer Than: Search this thread only Search this forum only Display results as threads More... Reply Alan Siu says: September 20, 2016 at 12:44 pm You really have to tackle one problem at a time.
This can happen during partitioning, disk verification and repair, and even during formatting, and there's usually little to no additional information provided as to how to resolve the problem or even from there i booted the iMac on its original OS X lion and from there downloaded the public beta of mac os sierra, which i was supposed to in the first Reply Alysia March 15, 2016 I'm trying to format a new external hard drive and it is not working. Couldn't unmount disk, then you may have to force an unmount through the terminal.
Save the changes and restart Mac OS X. Hope this helps.