chvfs Command

AIX Version 4.3 Commands Reference, Volume 1

chvfs Command

Purpose

Changes entries in the /etc/vfs file.

Syntax

chvfs VFSEntry

Description

The chvfs command changes /etc/vfs file entries by specifying the following fields within the VFSEntry parameter. The VFSEntry parameter is composed of the following: VFSName:VFSNumber:MountHelper:FileSystemHelper.

Any of the entries in the VFSEntry can be null, with the exception of the VFSName entry. If all of the arguments are satisfactory, the entry in the /etc/vfs file is changed.

Parameters

VFSEntry	A string in the following format: VFSName:VFSNumber:MountHelper:FileSystemHelper
VFSName	Specifies the name of a virtual file system type.
VFSNumber	Specifies the virtual file system type's internal number as known by the kernel.
MountHelper	Specifies the name of the backend used to mount a file system of this type.
FileSystemHelper	Specifies the name of the backend used by certain file system specific commands to perform operations on a file system of this type.

Examples

To change the FileSystemHelper for the vfs entry named newvfs , enter:

chvfs "newvfs:::/etc/helper/testhelper"

The missing parameters are left unchanged.

Files

/etc/vfs

Contains descriptions of virtual file system types.

Related Information

The crvfs command, lsvfs command, mount command, rmvfs command, .

The File Systems Overview for System Management in AIX Version 4.3 System Management Guide: Operating System and Devices explains file system types, management, structure, and maintenance.