How to Add an Entry to the /etc/vfstab File

1. Become superuser or assume an equivalent role.

2. Create a mount point for the file system to be mounted, if necessary.

   # mkdir /mount-point

   There must be a mount point on the local system to mount a file system. A mount point is a directory to which the mounted file system is attached.

3. Edit the /etc/vfstab file and add an entry. Make sure that you do the following:

   1. Separate each field with white space (a space or a tab).

   2. Enter a dash (-) if a field has no contents.

   3. Save the changes.

   For detailed information about the /etc/vfstab field entries, see Table 39–3.

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   Note –

   Since the root (/) file system is mounted read-only by the kernel during the boot process, only the remount option (and options that can be used in conjunction with remount) affect the root (/) entry in the /etc/vfstab file.

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Examples—Adding an Entry to the /etc/vfstab File

The following example shows how to mount the disk slice /dev/dsk/c0t3d0s7 as a UFS file system to the mount point directory /files1. The raw character device /dev/rdsk/c0t3d0s7 is specified as the device to fsck. The fsck pass value of 2 means that the file system will be checked, but not sequentially.

#device           device             mount    FS       fsck   mount    mount
#to mount         to fsck            point    type     pass   at boot  options
#
/dev/dsk/c0t3d0s7 /dev/rdsk/c0t3d0s7 /files1  ufs      2      yes       -

The following example shows how to mount the /export/man directory from the system pluto as an NFS file system on mount point /usr/man. A device to fsck nor a fsck pass is specified because it's an NFS file system. In this example, mount options are ro (read-only) and soft.

#device           device             mount    FS       fsck   mount    mount
#to mount         to fsck            point    type     pass   at boot  options
pluto:/export/man   -                /usr/man nfs      -      yes       ro,soft

The following example shows how to mount the root (/) file system on a loopback mount point, /tmp/newroot. LOFS file systems must always be mounted after the file systems that are in the LOFS file system.

#device           device             mount    FS       fsck   mount    mount
#to mount         to fsck            point    type     pass   at boot  options
#
/                   -                /tmp/newroot lofs -      yes       -