Enhanced AutoFS Administrator's Guide

Configuring and Administering AutoFS
Including an AutoFS Map in Another AutoFS Map
Chapter 352
Including an AutoFS Map in Another AutoFS
Map
To include the contents of an AutoFS map in another AutoFS map, add a
plus sign (+) before the map name; see the following example:
# /etc/auto_home file
# local mount point mount options remote server:directory
basil -nosuid basil:/export/home/basil
+auto_home
Assume that the /etc/auto_home map is listed in the master map with
the following line:
/home /etc/auto_home
This example causes the following:
• If a user whose home directory is in /home/basil logs on, AutoFS
mounts the /export/home/basil directory from the basil host.
• If a user whose home directory is in /home/sage, /home/thyme, or
any subdirectory of /home other than basil logs on, AutoFS checks
the auto_home NIS map for information on mounting the user’s
home directory.
The plus sign (+) indicates that AutoFS must look into a different map
for the information it needs to mount the directory. If the map name
following the plus sign begins with a slash, it is a local file for AutoFS. If
the map name contains no slashes, AutoFS uses the Name Service
Switch to determine whether it is a file or an NIS map. For more
information, see the "Configuring the Name Service Switch" chapter of
NFS Services Administrator’s Guide.
NOTE You can include an AutoFS map inside a local file but not inside an NIS
map.
For more information, see the following man pages: automount(1M) or
nsswitch.conf(4).