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Disks


Find out how much disk space I have left?

Applications → Utilities → Disk Utility → select hard drive or partition (e.g., Macintosh HD) → Information

Launch the Finder and look in the status bar, just below the toolbar. You will see something that says how many items are in that directory, and how much space is available on your hard drive.

In the Finder, select the the hard drive icon in the Computer view and select File → Get Info (-I).

Issue the df -k command in the Terminal


Find out whether a drive is formatted with HFS?

Applications → Utilities → Disk Utility → Select the drive or partition → Information


Create a disk image?

Launch Disk Copy (/Applications/Utilities), then go to File → New → Blank Image (-N). Enter a name for the disk image in the "Save as" field (a .dmg extension will be appended), select where you would like it saved to, enter a name for the volume, its size and format, and choose whether the disk image will be encrypted or not. Click the Create button to create the disk image, which will be mounted on your Desktop. Double-click on the disk image to open its Finder window, then drag and drop the items you would like included in the disk image, close the Finder window, and Eject the image (-E) to complete the process.

To create a disk image from an actual disk, such as your hard drive or a CD, choose File → New → Image from Device (Option--I) or Image from Folder or Volume (-I). Specify the details for the disk image and where you would like it to be saved, and then click the Image button.


Display the contents of a shared folder on another volume in my network?

Finder → volumefolder

From your home directory in the Terminal:

[macchuck:~] chuck% ls -la /Volumes/ volume / folder 


Partition a new hard drive?

Applications → Utilities → Disk Utility → Select the new drive → Partition


Partition an existing drive?

Follow these steps:

  1. Back everything up, because partitioning the drive requires a reinstall of the system and reformatting of the hard drive (don't skip this step).

  2. Insert the Mac OS X installation CD.

  3. Restart the computer and hold down the C key to boot from the CD.

  4. Select Installer → Disk Utility.

  5. Select the hard drive and specify the partition sizes, names, and the format of the partition (HFS+ is recommended).

  6. Click on the Partition button.

  7. When that's completed, finish installing Mac OS X and then load your data back on from the backup.


Unmount an external drive or partition?

Drag the disk icon from the Desktop to the Trash

Applications → Utilities → Disk Utility → select the drive or partition → Options → Unmount (this may require you to enter the administrator's password)


Erase a CD-RW disc or hard drive?

Applications → Utilities → Disk Utility → select the CD or disk → Erase


Create a RAID (redundant array of independent disks) for my system?

Applications → Utilities → Disk Utility → select the drives → RAID


Hide the hard disk (or partition) icons on my Desktop?

Finder → Preferences → Show these items on the Desktop → uncheck the box next to "Hard disks"

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