System Administration Guide, Volume I

/etc/vfstab Field Descriptions

An entry in the /etc/vfstab file has seven fields, which are described in Table 28-4.

Table 28-4 /etc/vfstab Field Descriptions

Field Name 

Description 

device to mount

  • The block device name for a local UFS file system (for example, /dev/dsk/c0t0d0s0).

  • The resource name for a remote file system (for example, myserver:/export/home). For more information about NFS, see the NFS Administration Guide.

  • The block device name of the slice on which to swap (for example, /dev/dsk/c0t3d0s1).

  • The /proc directory and proc file system type.

device to fsck

The raw (character) device name that corresponds to the file system identified by the device to mount field (for example, /dev/rdsk/c0t0d0s0). This determines the raw interface that is used by fsck. Use a dash (-) when there is no applicable device, such as for a read-only file system or a remote file system.

mount point

The default mount point directory (for example, /usr).

 

FS type

The type of file system identified by the device to mount field.

fsck pass

The pass number used by fsck to decide whether to check a file system. When the field contains a dash (-), the file system is not checked.

When the field contains a zero, UFS file systems are not checked; non-UFS file systems are checked. When the field contains a value greater than zero, the file system is checked.  

When the field contains a value of 1, the file system is checked sequentially. When fsck is run on multiple UFS file systems that have fsck pass values greater than one and the preen option (-o p) is used, fsck automatcially checks the file systems on different disks in parallel to maximize efficiency. Otherwise, the value of the pass number does not have any effect.

The fsck pass field does not explicitly specify the order in which file systems are checked.

mount at boot

Set to yes or no for whether the file system should be automatically mounted by mountall when the system is booted. Note that this field has nothing to do with AutoFS.

mount options

A list of comma-separated options (with no spaces) that are used in mounting the file system. Use a dash (-) to show no options. See Table 28-3 for a list of commonly used mount options.


Note -

You must have an entry in each field in the /etc/vfstab file. If there is no value for the field, be sure to enter a dash (-).