Monday, September 9, 2013

Disk Utility

Disk Utility was updated with Mac OS X v10.3. Prior to v10.3, the functionality of Disk Utility was spread across two applications:• Disk Copy•Disk Utility.
•Disk Copy was used for creating and mounting disk image files.
•Disk Utility was used for formatting, partitioning, verifying and repairing file structures. The ability to "zero" all data on a disk was not added until Mac OS X 10.2.3.•Further changes introduced in 10.4.3 allowed Disk Utility to be used to verify the file structure of the current boot drive.Mac OS X v10.5 Leopard added the ability to create, resize, and delete disk partitions without erasing them, a feature known as live partitioning.In versions of the Mac OS prior to Mac OS X, similar functionality to the verification features of Disk Utility could be found in the Disk First Aid application. Another application called Drive Setup was used for drive formatting and partitioning, and the application Disk Copy was used for working with disk images

Tasks of Disk Utility

1.Creation, conversion, compression and encryption of disk images from a wide range of formats read by Disk Utility.
               From .dmg (Macintosh OS X Disk Copy Disk Image File )  to .iso format.
               From CD/DVD images (.cdr ) to .iso format.
        2. Mounting, unmounting, and ejecting disks (including both hard disks, removable media and    disk images).
        3. Verifying a disk's integrity, and repairing it if the disk is damaged (this will work for both Mac compatible format partitions, and FAT-32 partitions with Microsoft Windows installed). 
        4. Verifying and repairing permissions of file and Hard disk.
         
          Other Tasks of Disk Utility are:

O                                Disk erasing, formatting, partitioning and cloning.
     • Secure deletion of free space or disk using a "zero out" data Adding or changing partition table between Apple Partition Table, GUID Partition Table, and master boot record (MBR):
          creating, destroying, merging, and repairing RAID sets.
          restoring volumes from Apple Software Restore (ASR) images.
          burning disk images to CD or DVD in HFS+ format.
          erasing CD-RWs and DVD-RWs
          Disk Utility functions may also be accessed from the Mac OS X command line      with the diskutil and hdiutil commands.

Conversion of file from .dmg format to .iso

Open Disk Utility (located in Applications>Utilities folder)

Drag your disk image into the left-hand pane (where all your drives are listed) of Disk Utility. 


Click on the file you just dragged into Disk Utility (should appear in the left-hand column).
Click on the 'Images' menu, then choose 'Convert...' 


When the 'Convert Image' dialog pops up, select 'DVD/CD Master' from the 'Image Format' pop-up menu. Name your file, with '.cdr' at the end of the filename, then click 'Save.'
Disk Utility will convert the file to an ISO image. After this finishes, replace the 'cdr' at the end of the filename (in the Finder) to 'iso'.






Repairing Mac Partition


Click on Hard disk that is on the left column and click on Repair Disk

No comments:

Post a Comment