How do I format a disk partition from the command line on OS X?

How do I format a disk partition from the command line on Mac OS X?

In case someone wonders why: because for some people Disk Utility fails.

Solution 1:

diskutil list

In my case I wanted to format the parition as NTFS for installing Windows 7 on it. The last parameter is the partition 4 on first disk.

diskutil eraseVolume "Tuxera NTFS" my-ntfs disk0s4

Solution 2:

For those of you looking to format an entire disk and remove all partitions here is the command:

diskutil eraseDisk free itsfree /dev/disk6

Even though I am formatting with free space-- I still had to give it a name for the command to work, in this case itsfree.

To list your disks

diskutil list

To securely erase - Needs to have a mounted volume

diskutil secureerase freespace 0 /dev/disk6s2

To list available filesystems

diskutil listFilesystems

Solution 3:

Multipe partitions

sudo diskutil partitionDisk /dev/disk9 11 GPT \
    JHFS+ one 298.1G \
    JHFS+ two 298.1G \
    JHFS+ three 298.1G \
    JHFS+ four 298.1G \
    JHFS+ five 298.1G \
    JHFS+ six 298.1G \
    JHFS+ seven 298.1G \
    JHFS+ eight 298.1G \
    JHFS+ nine 298.1G \
    JHFS+ ten 298.1G \
    JHFS+ eleven R