sipposa.blogg.se - At least one volume could not be unmounted

Unmount of disk1 failed: at least one volume could not be unmounted

But it failed with the following message. Now I executed diskutil unmountDisk command against the /dev/disk1, which identified as my disc in list command. This command show me two drives, first one is the hard drive of my machine and the second one is my external hard drive.Ģ: Apple_HFS Macintosh HD 250.1 GB disk0s2ģ: Apple_Boot Recovery HD 650.0 MB disk0s3ġ: Windows_FAT_32 Transcend 1.0 TB disk1s1 Yes you need to open a Terminal and execute the commands :).įirst I use the discutil list command to list down all the drives connected to my machine. Then I ended up with the following command where some of the people who had this kind of problem solved after executing following commands. So I decided to search on unmounting external hard drive in Mac. Then I understood that this should be a issue of not correctly unmounting.