Fixing Disk Utility Errors via Recovery Partition If the Unable to Unmount Error is triggered by first aid or formatting a non-boot partition, you may be able to fix the error I've never seen that. I've saved this page for future -- really appreciate the clear instructions as well as screenshots. Then paste in the command: diskutil list to list out the different disks. http://gsbook.org/unmount-disk/disk-macintosh-could-not-unmounted.php
Following this, attempt to Erase/Partition the drive again in Disk Utility. FOR AN ENTIRE PHYSICAL DISK: 1) Using the Terminal application again, booting from OS X Recovery or an external bootable drive. Reply Alan Siu says: December 11, 2015 at 12:11 pm In the terminal, there's no visual feedback for passwords. Tuts+ Computer Skills 11.813 görüntüleme 2:53 Mac OSX Lion How to do a Clean Install - Süre: 9:53. https://discussions.apple.com/thread/5174092?tstart=0
Software download link goes here http://www.stellarinfo.com/mac-software/partition-mac/partition-mac-drive.php Your Macintosh HD drive is now resized. nice post!Data RecoveryReplyDeleteSeanOctober 5, 2010 at 8:32 AMIf there is valuable data involved I would always avoid the Erase & Install. Please tell me what should I do now? Save the changes and restart Mac OS X.
In a moment of "what the heck, try this," while in Disk Recovery mode, I ran Fix Disk Permissions, then, voila! Fields that can be ordered in more than one way Why did Sansa refuse to leave with Sandor Cleagane (Hound) during the Battle of Blackwater? Looking for help with OS X? Error 69888 Couldn't Unmount Disk Also perform a permissions repair if required.
If you have an image you would like to clone to it use the clone option. You should see some disks appear like /dev/disk0, /dev/disk1, /dev/disk2. Bu videoyu bir oynatma listesine eklemek için oturum açın. http://www.stellarinfo.com/blog/couldnt-unmount-disk-error-mac/ Reply Vishal August 13, 2015 Hi Owen, Yes Stellar Partition Manager V3.0 will address your issue.
Reply Vishal May 19, 2015 @Eugene. Force Unmount Mac 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 I now have a useable disk where before it would not mount and could not be formatted or erased. When you start the software select your Apple drive.
You plugged out the peripherals, such as external sound cards, printer, external modem etc and rebooted the system to find the flashing question mark again.
Reply vishal May 25, 2016 Hi Dina, You can use Stellar Partition Manager Software to format the hard-drive of your Mac OS X extended Journaled file system. Couldn't Unmount Disk Mac Thank you. Partition Failed With The Error Couldn't Unmount Disk However, be prepared for your HDD to be unrepairable.
permalinkembedsaveparentgive gold[–]WB5QWN 0 points1 point2 points 1 year ago(0 children)I have used this method when a drive just seems bad and can not be formatted: http://www.macissues.com/2014/04/05/how-to-fix-deep-formatting-problems-with-os-x-drives/ permalinkembedsavegive gold[–]just_the_t1p 0 points1 point2 points 1 year ago(1 More about the author Hope this helps. Firstly you need to create a boot media using Stellar Partition Manager software. Welcome Sierra Users! Couldn't Unmount Disk External Hard Drive
Reklam Otomatik oynat Otomatik oynatma etkinleştirildiğinde, önerilen bir video otomatik olarak oynatılır. Took about 5-10 minutes. You can change this preference below. http://gsbook.org/unmount-disk/disk-macintosh-hd-could-not-unmount.php Reply Jak says: January 29, 2015 at 5:37 pm Much appreciation!
It can be a bad RAM, bad sectors on the hard drive etc. At Least One Volume Could Not Be Unmounted After the download & installation of Yosemite I wanted to remove Macintosh HD partition but keep music and video files and transfer them to Mac HD2. I boot it up and safe mode wasn't working, so I used Disk Recovery.
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 David A. Then, further install the OS X on it 5. Cannot Unmount Disk Mac This resolve my case.
worked perfectly. Could you also let me know the file format to which your external drive was formatted before this error? The version of the OS X does not matter, by at least must be 10.7, 10.8 and 10.9. news Jul 16, 2013 1:59 PM Helpful (0) Reply options Link to this post Apple Footer This site contains user submitted content, comments and opinions and is for informational purposes only.
For the boot drive, it shouldn't matter which version of OS X it's for (assuming 10.7, 10.8, and 10.9 at least), the only requirement is that it has Disk Utility - Went back to disk utilities, erased it (this time it did not complain at all), re-installed OS. Thanks a lot Kelvin 30th August 2015 at 3:21 am · Reply I got same error:-69888. I was an idiot and renamed my home folder and now I'm trying to format my computer because it doesn't recognize me or my password so not only can I not
I also have 1TB Seagate external hard drive. Skip to content St. Replace the ? WhyNotVideo211 46.082 görüntüleme 4:57 How to ║ Restore Reset a Macbook A1278 to Factory Settings ║ Mac OS X - Süre: 3:58.
From where? Used diskmaker x to make an el capital boot disk then followed your steps and it worked on my 2013 MacBook Pro with Yosemite version. Jan 1st December 2015 at 10:14 pm · Reply For me it worked finally quite simpel, first I unmounted the logical disc "under" the physical disk0, then the erase for disk0 With Boot Drive we mean that Operating system of a computer is burned (written) to a USB drive which makes it bootable.
When hiking, why is the right of way given to people going up? Thank you so much. Replacing it (probably) isn't that hard, and you can find a decent replacement online for fairly cheap; it may be time to start saving up what you can for a new iMac, OS X Mountain Lion (10.8.4) Posted on Jul 16, 2013 12:45 PM Reply I have this question too Q: the disk Macintosh HD could not be unmounted Hide Question All
The procedure changes certain system preferences like system volume, mouse speed settings etc. 2. Chedens Alexis 4.091 görüntüleme 0:44 Disk utility repair disk error - Süre: 7:11. 121macfreak 76.199 görüntüleme 7:11 How to Verify and Repair a Disk From the OS X Command Line - Home Free Tools Toolkits Contact Us Offers Menu Home/Tips & Tricks/3 Ways to Fix ‘Couldn’t Unmount Disk' Error 3 Ways to Fix ‘Couldn’t Unmount Disk' Error Vishal Updated on July 27, Twitter Facebook LinkedIn YouTube Book a Repair Book a Course 020 8660 9999 - [email protected] Home Xmas 2016 Repairs iPhone repairs Mac repairs Other repairs BusinessFirst Centres FAQ Prices Training Courses
wt to do pls i need help .. I really can't afford to pay someone $300 when I'm this close! I tried formatting/erasing the 2nd HD numerous times with Disk Utility and it would continue adding time to the process up to 22+ hours. This is 100gb of drive space I am talking off.