Step2: Then, type “diskutil list” to get the list of all the disks on Mac. Step1: Access the “Terminal Application”. The error message “Can’t unmount disk” can also be eradicated from Mac using the command line. This method will not work if the disk which is throwing this error and the primary boot partition is the same. Step3: From the Boot menu select “Disk Utility” and go to “First Aid” to verify and repair the disk or go to “Erase” if you wish to format the disk. Step2: Then, choose “Recovery Partition” option from the Boot menu. Step1: Reboot your device (Mac) and hold the “Option” key while booting. This method can be beneficial when the disk error occurs while formatting a non-booted partitioning or by First Aid. Solution 2: Fix using a Recovery Partition These steps should eliminate the issue, but if this method fails to do so then opt for the following method. Step4: Go to option “First Aid”, verify the disk and start repairing the drive if required.Īs you can see a boot drive is essential in this case. (If you are using Installer disk, then go to the “Utilities” menu and click on “Disk Utility” option). Step3: After this step, from the Boot menu access Disk Utility. Step2: Now, when the boot process holds the “Option” key, select the option “attached boot drive” from the utility menu. Step1: Be sure that the USB Drive is connected to your Mac device and then start to reboot the system. If the Boot drive was not there, then the error would have remained unresolved.
It is the most common solution to fix the error with the support of Boot drive. Solution 1: Fix the error “Can’t unmount disk mac” using the USB Boot drive
#Can mount hard drive mac disk utility how to
How to fix “Couldn’t unmount disk Error on Mac”įollowing are some of the solutions that can help to fix the error message “Couldn’t unmount disk on Mac”.
Drive being used by any other application or process.There are plenty of reasons associated with such an error message on Mac we have listed a couple of them below: What Causes the Error “Can’t unmount disk Mac”
#Can mount hard drive mac disk utility software
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