


This was the try: $ sudo diskutil eraseDisk JHFS+ DISK_VOLUME disk1īut it didn't work as well. Than for each disk: $sudo diskutil unmount force disk1snīecause I wasn't able to do anything with my external HDD I made a desperate attempt to erase everything on it, including unbackuped files, cause this used to be the backup plan. Gave this: Forced unmount of disk1 failed: at least one volume could not be unmounted If I open it in disk util I sometimes see an actual name of a partition, but most likely it's not the real name.Ģ: Apple_HFS Macintosh HD 140.0 GB disk0s2ģ: Apple_Boot Recovery HD 650.0 MB disk0s3Ĥ: Microsoft Basic Data BOOTCAMP 110.1 GB disk0s4Īnd then to unmount this: $sudo diskutil unmountDisk force disk1

My 1TB LaCie Rugged THB decided it was a good idea to stop working all of a sudden.
