diskutil verb [options]

DESCRIPTION

     diskutil uses the Disk Management framework to manipulate local disks.

VERBS

     Each verb is listed with its description and individual arguments.

     list [device]
                List the partitions of a disk or all disks.  If no device is
                listed, than all partitions on all disks will be displayed.

     info | information device
                Get information on a disk or volume.

     unmount    [force] device
                Unmount a single volume.   Force will force unmount the vol-
                ume.

     unmountDisk [force] device
                Unmount an entire disk (all volumes).  Force will force
                unmount the volumes.

     eject device
                Eject a disk.

     mount device
                Mount a single volume.

     mountDisk device
                Mount an entire disk (all mountable volumes).

     rename device name
                Rename a volume.

     enableJournal device
                Enable HFS+ journaling on a mounted HFS+ volume.  Ownership of
                the affected disk is required.

     disableJournal device
                Disable HFS+ journaling on a mounted HFS+ volume.  Ownership
                of the affected disk is required.

     verifyVolume device
                Verify the disk structure of a volume.  Ownership of the
                affected disk is required.

     repairvolume device
                Repair the structure of a volume.  Ownership of the affected
                disk is required.

     verifyPermissions device

     eraseVolume format name device
                Erase an existing volume.  Format discussed below.  Ownership
                of the affected disk is required.

     reformat device
                Reformat an existing device in the same name and format.  Own-
                ership of the affected disk is required.

     eraseOptical [quick] device
                Erase an optical media (CD/RW, DVD/RW, etc.).  Quick specifies
                whether the disc recording stack should do a full erase or a
                quick erase.  Ownership of the affected disk is required.

     zeroDisk device
                Erase a disk, writing zeros to the media.  Ownership of the
                affected disk is required.

     randomDisk [times] device
                Erase a disk, writing random data to the media.  Times is num-
                ber of times to write random information.  Ownership of the
                affected disk is required.

     secureErase [freespace] level device
                Securely erase a disk or freespace on a mounted volume.  Level
                should be one of the following
                        1 - Single pass randomly erase the disk.
                        2 - US DoD 7 pass secure erase.
                        3 - Gutmann algorithm 35 pass secure erase.  Ownership
                of the affected disk is required.

     partitionDisk device numberOfPartitions [OS9Drivers | APMFormat |
                MBRFormat | GPTFormat] <part1Format part1Name part1Size>
                <part2Format part2Name part2Size> <part3Format part3Name
                part3Size> ...
                (re)Partition a disk, removing all volumes.  All volumes on
                this disk will be destroyed.  Format is the specific filesys-
                tem name you want to erase it as (HFS+, etc.).  OS9Drivers
                specifies that an Apple Partition Map should be used, and laid
                out in a manner compatible with Mac OS 9.  APMFormat specifies
                that an Apple Partition Map should be used.  MBRFormat speci-
                fies that the partition map should be written in DOS compati-
                ble format.  GPTFormat specifies GUID Partitioning Scheme.
                Valid sizes are B(ytes), K(ilobytes), M(egabytes), G(iga-
                bytes), T(erabytes) Example: 10G (10 gigabytes), 4.23T (4.23
                terabytes), 5M (5 megabytes) You cannot partition the boot
                disk.   Ownership of the affected disk is required.

     createRAID mirror|stripe setName format device device ...
                Create a RAID set on multiple disks or volumes.  Ownership of
                the affected disks is required.

                RAID (Tiger).  Ownership of the affected disks is required.

     repairMirror raidDisk newDisk
                Repair a failed mirror.  Supply the existing RAID as the raid-
                Disk parameter.  Supply the new disk as the last parameter of
                the request.  newDisk and raidDisk are only Device Nodes or
                Disk Identifiers.  Ownership of the affected disk is required.

     updateRAID key value raidDisk
                Update the key|value parameters of an existing RAID set.  Own-
                ership of the affected disk is required.

     addToRAID type newDisk raidDisk
                Add a slice or spare to an existing RAID set.  Type is one of
                'member' or 'spare'.  newDisk and raidDisk are only Device
                Nodes or Disk Identifiers.  Ownership of the affected disk is
                required.

     removeFromRAID oldDisk|oldUUID raidDisk
                Remove a slice or spare from an existing RAID set.  oldDisk
                and raidDisk are only Device Nodes or Disk Identifiers.  A
                UUID of the oldDisk (see diskutil checkRAID) may be specified
                instead; this is useful if the oldDisk is offline or no longer
                exists.  Ownership of the affected disk is required.

FORMAT

     The format parameter of erase and partitioning (and RAID creation) is the
     filesystems name.  You can determine this name by looking in the /Sys-
     tem/Library/Filesystems/<fs>.fs/Contents/Info.plist.

     Some examples include HFS+, HFS, JournaledHFS+, UFS, MS-DOS, etc.

EXAMPLES

     Erase a disk
     diskutil eraseDisk UFS UntitledUFS disk3

     Erase a volume
     diskutil eraseVolume HFS+ UntitledHFS /Volumes/SomeDisk

     Partition a disk
     diskutil partitionDisk disk3 3 HFS+ Untitled 10G UFS UntitledUFS 10G MS-
     DOS DOS 10G

     Create a RAID
     diskutil createRAID mirror MirrorDisk HFS+ disk disk2

     Destroy a RAID
     diskutil destroyRAID /dev/disk3

     Repair a damaged RAID
     diskutil repairMirror disk2 disk3