3 Filesystems support

This chapter describes the requirements to compile the various filesystem backends and the operations supported by them.

NOTE: WipeFreeSpace tries to wipe partially used blocks only in regular files on the filesystem. It may print errors (short reads) or crash on sparse files and other exotic objects. Printing an error is normal in such case. WipeFreeSpace may also print an error if there were no objects suitable for wiping - this also is a normal situation meant to inform the user.