config EFS_FS tristate "EFS file system support (read only) (EXPERIMENTAL)" depends on BLOCK && EXPERIMENTAL help EFS is an older file system used for non-ISO9660 CD-ROMs and hard disk partitions by SGI's IRIX operating system (IRIX 6.0 and newer uses the XFS file system for hard disk partitions however). This implementation only offers read-only access. If you don't know what all this is about, it's safe to say N. For more information about EFS see its home page at <http://aeschi.ch.eu.org/efs/>. To compile the EFS file system support as a module, choose M here: the module will be called efs.