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Malware runonly applescripts avoid detection for

These items represent special types of folders on OS X. In general, you should not attempt to back up a NetBooted Mac. These local modifications are not stored in a restorable format, therefore should not be backed up. In the unlikely event that your Macintosh is booted from a Network device, OS X will store local modifications to the filesystem in this folder. OS X automatically regenerates the contents of these folders when CCC is finished updating the backup volume. The caches must be regenerated on the new volume as the on-disk location of system files and applications will have changed. /System/Library/Caches//*Ĭopying these caches to a new volume will render that volume unbootable.File inodes are volume-specific, so this dataset will have no relevance on a cloned volume. The Versions database stored in this folder contains references to the inode of each file that is under version control. The DocumentRevisions data store is used by the Versions feature in OS X. Attempting to copy these data stores without unmounting the source and destination is not only futile, it will likely corrupt them (and their respective apps will reject them and recreate them). These items are Apple-proprietary data stores that get regenerated when absent. Because they are volume-specific preferences, the exclusion of these items from a day-to-day backup seems most appropriate. Feedback on the exclusion of these items is welcome.

for Spotlight, Time Machine, and a custom icon for the volume. These items record volume-specific preferences, e.g.

/System/Library/CoreServices/.disk_label*.

These items should never, ever be manipulated by third-party programs. These items only show up if you're running an older OS than what was used to format the source volume, and on some third-party implementations of AFP and SMB network filesystems. Items postfixed with a "*" indicate that the filename will be matched up to the asterisk. Items postfixed with a "/*" indicate that only the contents of those folders are ignored, the folders themselves will be copied. Items prefixed with a "/" indicate that they will only be ignored if located at the root of the volume. The following is a list of the items that are excluded along with an explanation of why they are excluded. The contents of this list were determined based on Apple recommendations and years of experience.

Carbon Copy Cloner maintains a list of certain files and folders that are automatically excluded from a backup task.