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If the volume is large or has extensive problems, this process can run for a long time before it fails. However, since you are erasing the drive anyway, this doesnt really matter in your situation.īut now I am getting following error while trying to erase or paritition primary internal HD: wiping volume data to prevent future accidental probing failed. Using the above command can interrupt file readwrites, which can cause file corruption. The symptoms (unable to unmount) and the solution (force unmount) are probably the same though. I have rebooted a few times, and spent days running everything from TechTool Pro on it and it wont go.Īctually I think the reasons are different: here probably a degraded hdd, there a wrong EFI size and therefore an unreadable or partly overwritten HFS volume. Tech Tool Pro and Disk Utility dont seem to be able to fix the drive, so I decided to wipe the data by a reformat and writing zeros to the entire drive. If I cant unmount, and I restart, and I still cant unmount, then the WD device is fundamentally inert and ornamental.Īs this keeps happening, It suggests that there has to be a better way to solve this problem.Īpple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site.Īll postings and use of the content on this site are subject to the. If you look in the Console (ApplicationsUtilities), you will see an entry like this. Could Not Unmount For Repair Mac Again And.
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#Mac partition failed could not unmount disk how to#
Could Not Unmount For Repair How To Provide A.