Maintenance Operations
25
6.
(
Models with wireless support
) Orient the antennas.
•
Make sure that the antennas are oriented either up or down.
M a i n t e n a n c e O p e r a t i o n s
Connecting to the Engine Command Line
You may need to connect to the engine command line, for example, to
undo a software upgrade.
To connect to the engine command line
1.
Connect the serial cable supplied with the appliance to the serial
port on the appliance and to a computer.
2.
On the computer, open a terminal with settings 9600bps, 8
databits, 1 stopbit, no parity.
Reverting to Previously Installed Software Version
This procedure allows you to undo a software upgrade.
The appliance has two working partitions. One is designated as active
and the other as inactive. The inactive partition is used for upgrades and
the status is switched between the partitions when the upgrade is ready
to be activated. If the appliance does not start up with the new version,
it automatically switches to the previous configuration at the next
reboot. You can also switch back to the previously installed software
version manually whenever necessary as instructed here.
To switch back to the previously active version
1.
Connect to the engine command line as described above in
Connecting to the Engine Command Line
(page 25).
2.
(Re)start the appliance:
•
If the appliance is powered on, press
Enter
, log in as the user
root
with the password you have set for the appliance, and
issue the command
reboot
.
3.
Wait until a list of the appliance partitions is shown. The currently
active partition is highlighted in the list of partitions.
4.
Select the inactive partition and press
Enter
. A list of available
commands opens.
5.
Select
Boot SG FW/VPN
<name of partition> and press
Enter
.
The appliance switches partitions and boots up.
