Apple oxs Erasing, Partitioning, and Formatting Disks, Enabling Journaling When You Erase a Disk

Enabling Journaling When You Erase a Disk

You can use the newfs_hfs command to set up and enable journaling when you erase a disk.

To enable journaling when erasing a disk:

$ newfs_hfs -J -v volname device

Parameter	Description
volname	The name you want the new disk volume to have.
device	The device name of the disk.

Disabling Journaling

To disable journaling:

$ diskutil disableJournal volume

ParameterDescription

volume The volume name or device name of the volume.

Erasing, Partitioning, and Formatting Disks

You can use the diskutil command to partition, erase, or format a disk. For more information, see the man page.

Setting Up a Case-Sensitive HFS+ File System

You can use the diskutil tool to format a drive for case-sensitive HFS.

Note: Volumes you format as case-sensitive HFS are also journaled.

To format a Mac OS Extended volume as case-sensitive HFS+:

$ sudo diskutil eraseVolume "Case-sensitive HFS+" newvolname volume

Parameter	Description
newvolname	The name given to the reformatted, case-sensitive volume.
volume	The path to the existing volume to be reformatted.
	For example, /Volumes/HFSPlus

For more information, see the man page for diskutil.

Chapter 6 Working With Disks and Volumes

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