OS X ERROR COULD NOT UNMOUNT DISK MAC OS X
OS X ERROR COULD NOT UNMOUNT DISK INSTALL

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. 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 just cannot start it because the installation fails and something is still running, I guess.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). I already have a boot image on my USB drive.

OS X ERROR COULD NOT UNMOUNT DISK INSTALL

I would like to clean install OS X lion again. diskutil unmountDisk disk3 > to unmount the EFI partition if it reappears on the Desktop. sudo gpt remove -i 1 disk3 > to delete the partition. diskutil unmountDisk disk3 > to unmount the EFI partition.

OS X ERROR COULD NOT UNMOUNT DISK MAC OS X

Is that disk2 the reason why I cannot partition my main HD? How can I unmount or erase that disk2 Mac OS X Base system ? The commands to use are: diskutil list > to find out the disk on which the EFI partition to be repaired is example: /disk3. So I tried using Terminal to force unmount that disk, but still it doesn't let me. I tried to unmount it or erase that disk2, but it won't let me. As far as I know, I didn't see that disk2 in my disk list before. In Disk Utility, I found another disk called disk2 and Mac OS X Base System. But, when trying to partition, Disk Utility said that it cannot unmount the disk. So I tried to use Disk Utility to erase the startup disk and make a new partition. I tried to reinstall, but nothing came up. So, I tried to reboot again, but it said that the reinstallation failed and asked me to reinstall again. I show in this video the solution to the disk disassembly problem in macOS.Solution Disk Erase Failed with error Couldn't unmount disk mac error 69888PTBR. I don't have any Time Machine backups.Įverything went file, but in the middle of the installation, it got stuck, and later the installation failed without any reason. My Mac running Lion was being slow, so I was decided to reinstall OS X.

Os x error could not unmount disk