If that executes and does not give a cannot unmount error quit terminal and try the install again.Īgain using disk0 or whatever you found above. Type: diskutil erasedisk jhfs+ "Macintosh HD" disk0 If there were no core storage volumes found in the first place.įrom here identify your internal disk identifier. Type: diskutil cs delete 123ADGF-3953-DSCB43G-0682BIAGĮxecute this, then quit terminal and try to use disk utility again to erase and format like you were trying before. Choose Storage Electricity and attach the startup disc. Restart your iMac ór MacBook and keep down Command+R to boot your Mac pc into recuperation mode.
You should see something like 'Logical Volume Group: 123ADGF-3953-DSCB43G-0682BIAG.' Copy that string of random numbers and letters to the clipboard, then. Solution 3: Mount startup storage Some users posted this answer on Mac pc community forum to fix the macOS could not really be set up on your pc mistake. If it displays a bunch of stuff and doesn't say something along the lines of 'no core storage volumes found,' then you have to break up the Core Storage logical volume group first.
#CANNOT UNMOUNT DISK MAC MAC OS#
Go to recovery or the install image and jump into terminal. Cannot Unmount Disk Mac Unmount Drive From Bash On Mac Os 2017 Unmount Drive From Bash On Mac Os Mac Hi all, I was getting a little annoyed with seeing my WindowsXP partition in the Finder and on the desktop all the time, so I looked around for a way to easily mount and unmount it.
Your drive is more than likely fine if SMART is verified, no need to replace.
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