Gparted For Mac

 

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A free GUI solution to resizing disk partitions 5 comments Create New Account
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GParted is a free partition manager that enables you to resize, copy, and move partitions without data loss. The best way to access all of the features of the GParted application is by using the GParted Live bootable image. GParted Live enables you to use GParted on GNU/Linux as well as other operating systems, such as Windows or Mac OS X. GParted for Mac. Bart Hakvoort (Free) Download. GNOME Partition Editor (GParted) is used for creating, re-organizing, and deleting disk partitions. It uses libparted.

OS X can non-destructively re-partition HFS+ partitions. Check out diskutil in the man pages. Not a GUI solution though.

In Tiger, the Disk Utility GUI does allow you to repartition a drive but it is a DESTRUCTIVE repartition (meaning that all your data will be lost!).
But in Tiger starting in 10.4.6, you can use the 'diskutil resizeVolume' command in the Terminal to NON-DESTRUCTIVELY resize a Mac supported partition. (ie You SHOULD not lose any data but backup just to be on the sage side)
Don't expect to read the Man Pages on this command. Apple has NOT updated the man pages (still true in 10.4.11). But if you type 'diskutil resizeVolume' in the terminal, you will get the details on how to use this command.
If you want a GUI on Tiger, use GParted. It is a GREAT Linux tool which is really a PartitionMagic Clone. Just boot the CD and use the GUI. Gparted Supports MANY more Filesystems than Apple's Disk Utility GUI or the diskutil resizeVolume command.
If you are on Leopard, you can use the new Disk Utility GUI which is supposed to support NON-DESTRUCTIVE partitioning. But I do not know how good it is.
Bottom Line - Repartitioning ANY Drive is risky no matter what OS you are using. It is always a good idea to back up your data on a DIFFERENT physical drive before attempting to repartition. Better be Safe than Sorry!

According to this page:
http://gparted.sourceforge.net/features.php
...GParted can shrink HFS+ file systems but it can't grow them.
Also, we should careful about the terminology here since it's important for understanding partition and file system management. HFS+ is a file system, not a type of partition as mentioned in another comment.

You have a MBP so your drive uses the GUID (GPT) partition scheme. Disk Utility can re-size and re-partition non-destructively. Consult the DU help.
Be sure to backup first just in case.

The GParted LiveCD is for intel Macs only!

At present there is no method native to 10.6 Snow Leopard to format a drive with a Linux filesystem such as EXT2 or EXT3. This hint uses a bootable open-source Linux CD-ROM running the gparted application in order to format and partition these and many other filesystems.

Gparted Mac Os Download


Gparted For Mac Alternative

To create a bootable CD that you can use to manipulate Linux-formatted drive volumes, take the following steps.

Gparted For Mac Os X Download

  1. Download the latest version of gparted-live -- make sure to get the ISO disk image.
  2. Burn the ISO to a CD using Disk Utility. This CD will boot your Mac into an open source Linux OS. Nothing in OS X or on your hard drive is changed, and you don't need to use Boot Camp or any emulation software.
  3. To boot into the CD, select it in the Startup Disk System Preferences pane and then restart. Warning! Use a USB keyboard and mouse, as this Linux OS cannot handle Bluetooth wireless.
  4. Be somewhat amazed as your Mac reboots and Unix code streams down the page. There are a couple of prompts for input along the way, before you arrive in the GUI of the OS.
  5. The gparted (Gnome Partition Editor) software launches automatically, and you can select any mounted volume for information and manipulation, and many filesystems are supported. There is extensive online documentation and support for this software.
  6. Be very careful! Formatting deletes all your data, so obviously the usual precautions about backing up apply. Be sure to select the correct volume on which to make any changes!
  7. Shut down when you have finished. Warning! Your Mac may not respond to the alt (option) key when you restart and you may have to manually eject the CD before you can reboot into OS X.

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