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(am-utils.info)Filesystem Types

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Filesystem Types
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   To mount a volume, Amd must be told the type of filesystem to be
used.  Each filesystem type typically requires additional information
such as the fileserver name for NFS.

   From the point of view of Amd, a "filesystem" is anything that can
resolve an incoming name lookup.  An important feature is support for
multiple filesystem types.  Some of these filesystems are implemented
in the local kernel and some on remote fileservers, whilst the others
are implemented internally by Amd.

   The two common filesystem types are UFS and NFS.  Four other user
accessible filesystems (`link', `program', `auto' and `direct') are
also implemented internally by Amd and these are described below.
There are two additional filesystem types internal to Amd which are not
directly accessible to the user (`inherit' and `error').  Their use is
described since they may still have an effect visible to the user.

Network Filesystem

A single NFS filesystem.

Network Host Filesystem

NFS mount a host's entire export tree.

Network Filesystem Group

An atomic group of NFS filesystems.

Unix Filesystem

Native disk filesystem.

Caching Filesystem

Caching from remote server filesystem.

CD-ROM Filesystem

ISO9660 CD ROM.

Loopback Filesystem

Local loopback-mount filesystem.

Memory/RAM Filesystem

A memory or RAM-based filesystem.

Null Filesystem

4.4BSD's loopback-mount filesystem.

Floppy Filesystem

MS-DOS Floppy filesystem.

Translucent Filesystem

The directory merging filesystem.

Shared Memory+Swap Filesystem

Sun's tmpfs filesystem.

User ID Mapping Filesystem

4.4BSD's umapfs filesystem.

Program Filesystem

Generic Program mounts.

Symbolic Link Filesystem

Local link.

Symbolic Link Filesystem II

Local link referencing existing filesystem.

NFS-Link Filesystem

Link if path exists, NFS otherwise.

Automount Filesystem

Direct Automount Filesystem

Union Filesystem

Error Filesystem

Top-level Filesystem

Autofs Filesystem

Sun's kernel-based automounter filesystem.

Root Filesystem

Inheritance Filesystem