Manual: fsck.exfat

fsck.exfat(8)				   System Manager's Manual			       fsck.exfat(8)

NAME
       fsck.exfat - check an exFAT filesystem

SYNOPSIS
       fsck.exfat [ -a ] [ -n ] [ -r ] [ -v ] [ -y ] [ -b ] [ -P ] [ -v ] device
       fsck.exfat -V

DESCRIPTION
       fsck.exfat checks an exFAT filesystem and repairs the filesystem depending on the options passed. The
       following corruptions can be repaired, and see the option, '-s'.

       -      Boot  sector  has	 invalid parameters. If backup boot sector is valid, replace the boot sector
	      with it.

       -      Cluster is marked as free but belonged to a file, or vise versa. The bitmap for the cluster is
	      marked properly.

       -      File size is abnormally large considering the count of clusters. The size is changed.

       -      File size is abnormally small considering the count of clusters. The  remaining  clusters	 are
	      deleted.

       -      File's  cluster  chain  has  an invalid cluster number. The number are changed to EOF, and the
	      file size is also changed.

       -      File's cluster chain contains a loop. The loop is broken.

       -      Files share the same cluster.  Cluster chains for files except one are broken.

       -      Start cluster number is invalid. The cluster number and file size are changed to 0.

       -      Checksum value of directory entry set is invalid. Directory entry set is deleted.

       -      Bad hash value of a file name. The hash value is changed properly.

       -      Fields of directory entry set have invalid values. Directory entry set is deleted.

OPTIONS
       -a     This  option  does  the same thing as the -p option.  It is provided for backwards compatibil‐
	      ity only;	 it  is	 suggested  that people use -p option whenever possible.

       -n     Check the filesystem but do not attempt to repair the filesystem.

       -p     Repair the filesystem without user interaction if it can be done safely.

       -P     Show progress bar while checking the filesystem. Cannot be used with -r option.

       -r     Repair the filesystem interactively.

       -s     Create files in /LOST+FOUND for orphan clusters. These files have clusters allocated  but	 not
	      belonged	to  any files when reparing the filesystem. clusters unused and contiguous in bitmap
	      are allocated to the same file.

       -v     Prints verbose debugging information while checking the exFAT filesystem.

       -V     Prints the version number and exits.

       -y     Repair the filesystem answering yes to all questions.

       -b     Try to repair the filesystem even if the exFAT filesystem is not found.

EXAMPLES
       repair a corrupted device and create files in /LOST+FOUND, which have clusters allocated but not	 be‐
       longed to any files when reparing the device.
       $ fsck.exfat -p -s /dev/sda1

SEE ALSO
       fsck(8), fstab(5),

											       fsck.exfat(8)