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In systems prior to OS X El Capitan, a permissions repair can be performed by selecting a startup volume and clicking the "Repair Disk Permissions" button in the "First Aid" section of Disk Utility. The operation can also be performed by using the diskutil command-line utility. [ 6 ]
Checking the S.M.A.R.T. status of a hard disk; Disk Utility functions may also be accessed from the macOS command line with the diskutil and hdiutil commands. [3] It is also possible to create and manage RAM disk images by using hdiutil and diskutil in terminal. [4]
Apple Software Restore or asr is a command line utility in Mac OS X used to apply a DMG disk image to a selected partition or mount point on a file system. It is often used for cloning large numbers of Macintosh computers. Apple Software Restore can read an image locally or from a server via HTTP or its own multicast asr:// URI.
TestDisk is a free and open-source data recovery utility that helps users recover lost partitions or repair corrupted filesystems. [1] TestDisk can collect detailed information about a corrupted drive, which can then be sent to a technician for further analysis.
Disk volume, Extent B-tree, Catalog B-tree, Catalog Hierarchy, Volume Info, and to search for locked volume name. [7] After analyzing the disk directory, Disk First Aid determines whether it is able to repair any damage that was detected. The utility can commonly only fix problems associated with the catalog/extents files and the volume bitmap. [4]
A typical recovery disk for an Acer PC.. The terms Recovery disc (or Disk), Rescue Disk/Disc and Emergency Disk [1] all refer to a capability to boot from an external device, possibly a thumb drive, that includes a self-running operating system: the ability to be a boot disk/Disc that runs independent of an internal hard drive that may be failing, or for some other reason is not the operating ...
The chkdsk command on Windows XP. CHKDSK can be run from DOS prompt, Windows Explorer, Windows Command Prompt, Windows PowerShell or Recovery Console. [10] On Windows NT operating systems, CHKDSK can also check the disk surface for bad sectors and mark them (in MS-DOS 6.x and Windows 9x, this is a task done by Microsoft ScanDisk).
However, the Mac OS X tools have not been tested on Mac OS X later than 10.2.6, and is known to be incompatible with Mac OS X 10.3 (Panther). [50] Features: Norton Disk Doctor, Speed Disk, FileSaver, UnErase, Volume Recover, LiveUpdate. Speed Disk does not run on Mac OS X, except by booting with Norton Utilities 7.0 CD.