How to Create a LOFS File System

1. Become superuser.

2. Create the directory where you want to mount the LOFS file system and give it the appropriate permissions and ownership.

3. Create a LOFS file system.

   To set up the system to automatically create a TMPFS file system when it boots, see "Example--Creating a LOFS File System at Boot Time".

   # mount -F lofs loopback-directory mount-point

   loopback-directory	Specifies the file system to be mounted on the loopback mount point.
   mount-point	Specifies the directory on which to mount the LOFS file system.

4. Look at the output from the mount command to verify that the LOFS file system has been created.

   # mount -v

Example--Creating a LOFS File System

The following example shows how to use a new LOFS file system with the chroot(1M) command to provide a complete virtual file system view of a process or family of processes.

# mkdir /tmp/newroot
# mount -F lofs / /tmp/newroot
# chroot /tmp/newroot command

Example--Creating a LOFS File System at Boot Time

You can set up the system to automatically create a LOFS file system when it boots by adding an entry to the end of the /etc/vfstab file. The following example shows an entry in the /etc/vfstab file that will create a LOFS file system for the root (/) file system on /tmp/newroot.

/ - /tmp/newroot  lofs   -  yes  -

Make sure the loopback entry is the last entry in the /etc/vfstab file. Otherwise, if the /etc/vfstab entry for the loopback file system precedes the file systems to be included in it, the loopback file system cannot be created.

For more information the /etc/vfstab file, see "/etc/vfstab Field Descriptions".