Macos – How to partition MBR external hdd on Mac

hard drivemacosmbrpartitioning

I have a 1TB external hard drive and I decided that I would partition it so I could use one for files and one for Time Machine backups. But I found out that my hdd's partition table is Master Boot Record and I can't transfer the data temporarily on my Mac because the data on it is around 50GB and the free space left on my Mac is 15.67GB. Help!

Best Answer

You can use Terminal

diskutil partitionDisk /dev/disk7 MBR fat32 "NO NAME" 100%

Replace number 7 on "disk7" with actual disk number..

  • GPT: GUID Partition Table
  • APM: Apple Partition Map
  • MBR: Master Boot Records

For additional volumes just use this approach

Volume1Format Volume1Name Volume1Size Volume2Format Volume2Name Volume2Size

For example:

diskutil partitionDisk /dev/disk7 MBR fat32 FIRST 100m fat32 SECOND 100m

Based on that you are able to make your own command.

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