SplitPartition (Split an existing partition into two or more) PartitionDisk ((re)Partition a disk, removing all volumes) ResizeVolume (Resize a volume, increasing or decreasing its size) SecureErase (Securely erase a disk or freespace on a volume)

RandomDisk (Erase a disk, writing random data to the media) ZeroDisk (Erase a disk, writing zeros to the media) RepairPermissions (Repair the permissions of a Mac OS X volume)ĮraseDisk (Erase an existing disk, removing all volumes)ĮraseOptical (Erase optical media (CD/RW, DVD/RW, etc.)) VerifyPermissions (Verify the permissions of a Mac OS X volume) RepairVolume (Repair the file system data structure of a volume) VerifyVolume (Verify the file system data structure of a volume) MoveJournal (Move the HFS+ journal onto another volume)ĮnableOwnership (Treat as exact User/Group IDs for a mounted volume)ĭisableOwnership (Ignore on-disk User/Group IDs for a mounted volume) MountDisk (Mount an entire disk (all mountable volumes))ĮnableJournal (Enable HFS+ journaling on a mounted HFS+ volume)ĭisableJournal (Disable HFS+ journaling on a mounted HFS+ volume) UnmountDisk (Unmount an entire disk (all volumes)) ListFilesystems (List file systems available for formatting) Info (Get information on a specific disk or partition) Most options require root access to the device Utility to manage local disks and volumes

Partition external drive on mac