Eu tenho um pendrive da Microsoft, usado para enviar o Office 2016 para Mac. Não uso o Office 2016 para Mac, portanto, desejo usar esse stick para outros fins.
/dev/disk9 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: FDisk_partition_scheme *7.9 GB disk9
1: Windows_NTFS Office 2016 for Mac 7.9 GB disk9s1
> diskutil eraseDisk ExFAT DiskName /dev/disk9
Started erase on disk9
Unmounting disk
Error: -69877: Couldn't open device
> sudo dd if=/dev/zero of=/dev/disk9
Password:
dd: /dev/disk9: Permission denied
> sudo diskutil unmountDisk force /dev/disk9
Forced unmount of all volumes on disk9 was successful
> diskutil eraseDisk ExFAT DiskName /dev/disk9
Started erase on disk9
Unmounting disk
Error: -69877: Couldn't open device
Esse pen drive é de alguma forma somente leitura? Como usá-lo?