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#Partition failed couldn t unmount disk how to
#Partition failed couldn t unmount disk mac os x

Once the partition has been created, boot into the macOS High Sierra Bootable USB installer.

#Partition failed couldn t unmount disk how to

Check the step by step guide on how to create a new volume on Windows 10. Create a new volume and choose the File System “ exFat“. If you want to fix it then navigate to your windows operating system and open Disk Management. You see this error message when you want to erase a partition on Disk Utility.

Erase process has failed couldn’t unmount disk.

Erasing “Untitled 3” and creating “Untitled 3”.

This guide is going to assist you to figure out this matter. This error occurs differently for the people but the solution is almost the same. Related: Fix erase process has failed while erasing the disk Fixed Erase Process Has Failed Click Done to Continue In this guide, I’m going to show you two methods that really help you to sort out this frustrating problem. In some cases, it’s because of the disk scheme and format. I’m not really 100% sure that why this error occurs sometimes.

#Partition failed couldn t unmount disk mac os x

You might have experienced this issue on the later version of macOS ( macOS Sierra, Mac OS X El Capitan, Mavericks, Yosemite”.

You can get a monster drive and case for less than $100 - or even cheaper for a smaller drive, and you've got added security of independent drives which you can always use to back each other up.In this article, I’m going to show you how to fix Erase Process Has Failed during partitioning macOS High Sierra hard drive on Disk Utility.

So I need qa new box to recover the drive's files. I'm going to buy another this week, because my crappy generic FW case croaked, and one drive won't mount. I get the combo USB/Firewire, but my ancient Titanium has USB 1.1. My preference is the Galaxy Metal Gear II. I'd see if DW has any info on this, but not take the chance it it doesn't.ĭrives are fairly cheap (<20¢ a GB), and USB 2.0 cases are dirt cheap. I don't know if youi can use the logical partition on the same drive. Of course you need a drive as large as the files you want to recover, since it ddoesn't do any compression. If you don't like the way it looks, abort and try again. You should see the entire folder structure, except the possibility of a few corrupted files. DW will let you set up a logical disk on the desktop to inspect the recovered files before toasting the bad drive. I've had the same problem, and ended up having to use Disk Warrior to recover the files onto another drive, toast the uncooperative drive, reformat, and move the recovered files back to the reformatted drive. I would normally reformat but I have a lot of stuff on the hard drive that I dont wont to lose. Im asuming that to fix the hard drive it has to be able to unmount KAINARC.ĭoes anyone have any ideas of how I can fix this problem. I have tried other repair/recover programs but get the same message: 'Could not unmount disk KAINARC' So I have opened diskwarrior (unbelievably long time to start up and scan disks) in the hope of fixing the hard drive, but when i try to repair I get the error message 'unable to unmount KAINARC'. Repairing disk failed with error Could not unmount disk So I try to verify and repair the partition KAINARC but get this message: When i try to verify and repair the partition I get the message:Įrror: The underlying task reported failure on exitġ volume could not be repaired because of an error I go to disk utility and both partitions are visable, KAINARC is mounted but JUNGLEMAC is not. KAINARC now appears on my desktop, but the partition of JUNGLEMAC does not. I may have shut down the drive improperly to cause this situation. I have a Western Digital 500gb external hard drive, with 2 partitions, 'KAINARC' and 'JUNGLEMAC', connected to my Intelmac (Tiger 10.4.11 via my firewire, i have connected via usb but the problem is still the same).