How do I format a disk partition from the command line on OS X?
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22-10-2019 - |
Question
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
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
OTHER TIPS
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
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