I can then work with this in either Apple or Windows environment. Again, if the disk throwing the errors is the same as the primary boot partition that Recovery is also on, the above. Go to First Aid to verify and repair the disk, or go to Erase to format the disk.
Disk erase failed could not unmount disk install#
05 percent - I then tried to erase drive and install a fresh copy of lion - then did. Reboot the Mac holding down the Option key and choose the Recovery partition. I was running Panther and recently upgraded to Tiger and it didn't solve anything either.Ĭan somebody help me? Should I consider buying another harddrive? I had many updates yesterday - I installed updates - for some reason finder kept shutting off, Everytime I hit send to apple - it would reappear - I tried to reinstall from Time Machine, but it kept failing at. Click on the Erase tab at the top of the window. I reformated it again but it didn't solve anything. Recover Data lost during couldnt Pre-Boot Volume for APFS error. The volume has no owner but the disk utility doesn't see any file on it (but the finder does).
the NAS returned to work and now it is possible erase the disk without problems. I've tried to plug it directly on the Mac (it's normally connected thru a USB 2 HUB) - same story: when I turn it on, it takes ages to mount, I can see what's on it, I can copy things onto it but I can't copy from it. Format sd4 partition: Couldnt unmount /dev/sda4 for formatting it. When I run the disk utility to veify it, I receive the following message: "Verify volume failed with error Could not unmount disk".
I can copy things on it but I can't read them. When I acquired my Mac I backed it up and reformated it in HFS+ (journaled) from the previous NTFS file format and then. lsof grep then drag the drive to the terminal window to complete the path to the drives mount point, and press enter. I have been using my Hitachi USB2 harddrive on windows XP without any problem. This video show an alternative way to reformat and erase your SD drive when you receive the following error within the disk utility G. I've just switched the the wonderful Mac world but I have an issue with my exWindows external harddrive.