Thought I was going to have to buy a new external! Can someone help?? share|improve this answer answered Mar 11 '13 at 6:55 Alex 59811026 add a comment| up vote 0 down vote Yes, ensure no "disk prep" apps are open for the external drive. You can also subscribe without commenting. this contact form
I can't find a whole lot of other resources on the web instructing me how to format this drive with this error message. Now with the help of the Mouse pointer, drag the sidebar to resize your Mac HD 2 partition. To proceed, enter your password, or type Ctrl-C to abort. Reply Vishal August 13, 2015 Hi Owen, Yes Stellar Partition Manager V3.0 will address your issue.
However, this is not applicable for the modification of the boot disk with the help of partitions or formatting. It will ask you to create image of Macintosh HD. Thanks niccodeamus! Hot Network Questions How can I tell whether a generator was just-started?
Please give me some suitable solution so that I can further use my MacBook Pro. Worked perfectly after many failed "solutions". Therefore, a bootable thumb drive was a good option. Couldn't Unmount Disk Mac They are unable to erase or partition the drive.
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 - Open the disk untility and eras your disk normally - the error will be gone. Uygunsuz içeriği bildirmek için oturum açın. Press done to continue Reply Vishal October 19, 2016 Hi Sherri, Mac can't write to NTFS formatted hard drive but Stellar Partition Manager can help you format, resize, create, delete or
http://www.stellarinfo.com/blog/repair-mac-hfs-hard-drive/ Hope this helps. Force Unmount Mac Can it be any usb? Here is how you should proceed 1) Download Stellar Partition Manager. I even set a one-on-one session and we could not figure it out.
Why so? Can't Unmount Disk Mac Yükleniyor... At Least One Volume Could Not Be Unmounted Reply Scott says: February 12, 2016 at 1:43 pm Great tip.
My Specs are MacBook Pro 2012 4GB 1TB. http://gsbook.org/unmount-disk/mac-could-not-unmount-disk-external-hard-drive.php Reply Alan Siu says: July 8, 2016 at 10:18 am Sierra is still beta, right? You may find these links helpful: https://www.ifixit.com/Answers/View/244571/partition+failed+wiping+volume+data+to+prevent+future+accidental+probi https://www.reddit.com/r/applehelp/comments/3v3ybd/wiping_data_to_prevent_future_accidental_probing/ Reply brian says: August 26, 2016 at 5:53 pm Awesome! CompHelperKid 19.588 görüntüleme 6:50 Format A Drive In OSX Terminal - Süre: 2:30. Error 69888 Couldn't Unmount Disk
share|improve this answer answered Jun 13 '14 at 6:24 Graham 11 Transmac worked for me also. Please double-check your typing when using sudo. Many-2 thanks for such a valuable blog post. http://gsbook.org/unmount-disk/formatting-hard-drive-could-not-unmount-disk.php Reply Johnathan Melton November 5, 2016 Ok trying to wipe the mac pro completely but I can't cause I can't unmounted a partition drive so I tried a bunch
Providing links can also help the OP, and others, find additional info for themselves. Volume Erase Failed Couldn't Open Disk Is there a way in Terminal to do this instead? acguevara 41.908 görüntüleme 5:43 How to remove write protection from your usb or sd card using cmd - Süre: 2:33.
Reply Jeff Alexander says: April 15, 2016 at 3:18 pm I have been trying off and on for weeks to get rid of this error. You can also try unmounting the partition manually by selecting it in Disk Utility and clicking Unmount in the toolbar. You can read the following blog post on HFS drive corruption. Partition Failed With The Error Couldn't Unmount Disk How to put a diacritic on top of an i?
Reply Audrey Hain November 10, 2016 Hi, I am a MacBook Pro user, and I am unable to boot my Mac system from other disk. Please download the demo version for a free evaluation. Gemsbok Apple Tips and Tricks 3.235 görüntüleme 6:11 Mount and Unmount Disks in OSX Terminal - Süre: 2:29. http://gsbook.org/unmount-disk/formatting-external-hard-drive-for-mac-could-not-unmount-disk.php Worked immediately.
Geekanoids 166.323 görüntüleme 9:53 How To Format a USB drive on Mac - Süre: 5:29. It seems that Spotlight was struggling with a the failed drive and would not let it go so the unmount and erase could not occur.This was solved by disabling Spotlight (terminal: MusicTechHelpGuy 15.785 görüntüleme 4:52 How to Fix a Corrupt Mac Harddrive in 10.8 - Süre: 3:03. Im just happy i didn't have any files on the computers, so nothing was lost, just my time it took to fix them.
If that doesn't work, I'd actually seriously consider booting Ubuntu or some other non–Mac OS X operating system to reformat the drive that way first, and then use Disk Utility to Yükleniyor... Video kiralandığında oy verilebilir.