man Pages(4): File Formats

vfstab(4)

NAME

vfstab- table of file system defaults

DESCRIPTION

The file /etc/vfstab describes defaults for each file system. The information is stored in a table with the following column headings:

.ft 2
device	device	mount	FS	fsck	mount	mount
to mount	to fsck	point	type	pass	at boot	options

The fields in the table are space-separated and show the resource name (device to mount), the raw device to fsck (device to fsck), the default mount directory (mount point), the name of the file system type (FS type), the number used by fsck to decide whether to check the file system automatically (fsck pass), whether the file system should be mounted automatically by mountall (mount at boot), and the file system mount options (mount options). (See respective mount file system man page below in SEE ALSO for mount options.) A '-' is used to indicate no entry in a field. This may be used when a field does not apply to the resource being mounted.

The getvfsent(3C) family of routines is used to read and write to /etc/vfstab.

/etc/vfstab may be used to specify swap areas. An entry so specified, (which can be a file or a device), will automatically be added as a swap area by the /sbin/swapadd script when the system boots. To specify a swap area, the device-to-mount field contains the name of the swap file or device, the FS-type is "swap", mount-at-boot is "no" and all other fields have no entry.