Emerson Liebert PSA Line-Interactive UPS 500-1500VA Manuale Utente

The preconfigured serial ports are 

/dev/ttyS0

 and 

/dev/ttyS1

. You may select one of these or enter 

another as appropriate.
Note: Be careful to not pick the port used by the serial mouse, if your system has one.

The Liebert MultiLink installation program places the script 

LiebertM

 in the 

/etc/rc.d/init.d 

(or 

/etc/init.d

) directory. It also creates K30LiebertM and S90LiebertM links in several of the

/etc/rc.d/rc?.d

 (or 

/etc/rc?.d

) directories.

If running an X Window system window manager, all users meant to receive pop-up messages must 

allow access to their desktop. This can be accomplished by adding the following command to a 

common logon script (e.g., 

/etc/profile

)—see the xhost documentation for more information about 

the desktop security mechanism:

/usr/bin/xhost +`hostname`

Note: the characters surrounding hostname are the grave accent (

`

) that is usually found on the same 

keyboard key as the tilde (

~

).

During installation, shell scripts are created in the product installation directory tree (e.g., 

/opt/

MultiLink

). These scripts may be used to execute these Liebert MultiLink applications:

•

bin/Viewer

—Viewer

•

Uninstall

—Uninstall Liebert MultiLink

For convenience, you may want to add the bin subdirectory to your PATH.

When operating properly, Liebert MultiLink is running constantly in the background. To verify that 

it is doing so, use 

/etc/rc.d/init.d/LiebertM status

 to get a list of the active Liebert MultiLink 

processes.

Run the following command in a shell session:

ifconfig

In the output from this command, you can see the machine’s IPv4 address following “inet addr:” 

within the section associated with you network interface (e.g., eth1).

Liebert MultiLink must be able to resolve the computer's hostname to its IP address in order to 

function properly. This means that the computer must be properly configured for a DNS server or the 

file /etc/hosts contains an appropriate record for the hostname. If this is not done, the installation 

will fail with an “Initialization Error.”

• You must log in as “root.”
• Close the MultiLink Viewer—the uninstall process will fail if the Viewer is open.
• Go to the directory where the Liebert MultiLink files are located (e.g., 

/opt/MultiLink

) and run 

Uninstall

.

• A confirmation box asks if you are sure you want to uninstall the software.
• Pressing the Yes button will begin removing the software.
• A message box appears when the process is completed. The uninstall process stops Liebert 

MultiLink services that are running and removes all Liebert MultiLink files from the hard drive.