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#DISK AID MAC FOR MAC OS X#
#DISK AID MAC MAC OS X#
#DISK AID MAC INSTALL#
#DISK AID MAC VERIFICATION#
#DISK AID MAC PLUS#

Third-party software, even if that software was installed using the Mac OS X Installer and created a receipt.

This means that Repair Disk Permissions will not correct permissions problems on: It is important to understand that Repair Disk Permissions only verifies and repairs the permissions of Apple-originated objects with Apple-originated receipts. Never delete files in any of the receipts folders cited above unless specifically instructed to do so by a Mac OS X troubleshoting expert. If you ordered factory-installed applications with your Mac, /Library/Receipts/ also contains the Modular Software ist file listing that software. Installations are tracked in the ist file in the /Library/Receipts/ directory.

Under Mac OS X 10.6 Snow Leopard®, receipts are saved in the hidden /private/var/db/receipts/ directory.

Under Mac OS X 10.5 Leopard®, in addition to receipt flies in the /Library/Receipts directory, a permissions database file ( a.receiptdb in the /Library/Receipts/db/ directory) is read or updated whenever permissions are verified or repaired.

Under Mac OS X 10.4 Tiger® and earlier, receipts are files saved in the Macintosh HD > Library > Receipts folder, i.e.

Where receipts are saved depends on the version of Mac OS X you are using: If the permissions of an object differ from those specified in its associated receipt, its permissions are reset to the values specified in the receipt.

#DISK AID MAC VERIFICATION#

Verification compares the current permissions settings of an Apple-originated object against those specified for that object in its associated installation receipt. Repair Disk Permissions is only available for volumes on which Mac OS X is installed. This is described in more detail in the AppleCare® Knowledge Base document "About Disk Utility's Repair Disk Permissions feature." Mac OS X system-related objects and Apple-provided applications bundled with Mac OS X. Repair Disk Permissions verifies and, if problems are found, resets (repairs) the permissions on Apple-originated files and folders (objects), i.e.

#DISK AID MAC PLUS#

To delve into the technical details of the directory and volume structure of the Mac OS Extended disk format, aka HFS Plus or HFS+, see the Apple® Developer Connection document "Technical Note TN1150: HFS Plus Volume Format." The Repair Disk Permissions function Severe directory corruption can often be repaired by third-party disk utilities, such as Alsoft® DiskWarrior® and Micromat® TechTool® Pro.īefore attempting to use a third-party utility to repair a disk or volume, assure that you have the latest version of the utility that is compatible with the version of Mac OS X you are using.įor additional information about the Repair Disk and Verify Disk functions of Disk Utility, consult Disk Utility Help. While Repair Disk can correct a variety of directory problems, it is generally incapable of repairing severe directory corruption. If Verify Disk finds errors on your startup disk, you must repair the disk as noted in point 1.

#DISK AID MAC FOR MAC OS X#

If you are running Mac OS X 10.4.3 or later and your startup disk is in Mac OS X Extended (Journaled) format the default format for Mac OS X 10.3 Panther® and later you can use Verify Disk to verify the directory of your startup disk while your Mac is started up from such.

#DISK AID MAC INSTALL#

See Steps 1-2 of the Procedure specified in our "Resolving Disk, Permission, and Cache Corruption" FAQ for step-by-step instructions on repairing your startup disk using your Mac OS X Install disc. To repair your startup disk, you must startup from your Mac OS X Install disc or another drive on which Mac OS X is installed. You cannot use Repair Disk to repair your Mac OS X startup disk for example, Macintosh HD while your Mac is started up (booted) from such.Keep in mind the following key points about Repair Disk: All hard disks have one or more volumes or partitions. A volume, also known as a partition, is section of a physical hard disk which, from the perspective of the operating system, works like a separate disk. The directory is analogous to a combined address book and road map to where data is stored on a disk or volume. Repair Disk verifies and, if problems are found, corrects issues with the directory on a disk or volume. Verify or Repair? The Repair functions of Disk Utilityĭisk Utility, located in the Macintosh HD > Applications > Utilities folder, can perform two types of repairs via the following choices in the First Aid tab:.Why are repairs needed? When should I use these functions?.

It is a subset of the more comprehensive information on these topics from our book, Troubleshooting Mac OS X. This FAQ provides a brief overview of the Repair Disk and Repair Disk Permissions functions of Disk Utility in Mac® OS X. The Repair functions of Disk Utility: what's it all about?