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Managing the dosfs filesystem

dosfs filesystem components checked by fsck

The following two components are checked:

dosfs-fsck phase 1: check FATs

Every dosfs filesystem maintains two or more identical copies of the File Allocation Table (FAT). During Phase 1, fsck performs two types of checks:

dosfs-fsck phase 2: check directory entries (pass 1)

During Phase 2, fsck performs the following checking:

The following information is collected during Phase 2:

dosfs-fsck phase 3: cross reference check

During Phase 3, fsck will perform the following checking:

dosfs-fsck phase 4: check directory entries (pass 2)

Phase 4 is the same as Phase 2. It is only needed and performed by fsck if there was a corrective action performed during cross-referencing checking that had invalidated the data collected during Phase 2.

dosfs-fsck phase 4: check boot area (FAT 32 only)


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