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Maintenance Operations
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 as instructed here whenever necessary.
To switch back to the previously active version
1.
Connect the serial cable supplied with the appliance to the serial
port on the appliance’s front panel and to a computer.
2.
On the computer, open a terminal with the following settings:
9600 bps, 8 databits, 1 stopbit, no parity.
3.
(Re)start the appliance:
•
If the appliance is powered on, press Enter, log in with username
root
and the password you set through the SSL VPN Web
Console (see
Changing the Admin Password in the SSL VPN Web
(page 27), and issue command
reboot
.
4.
Wait until a list of the appliance partitions is shown. The currently
active partition is highlighted.
5.
Select the inactive partition and press Enter. A list of available
commands opens.
6.
Select
Boot SSL-VPN
<name of partition> and press Enter. The
appliance switches partitions and boots up.
If you want to undo this operation, repeat the steps exactly as above.
Note –
When the appliance is powered and you need to unplug it,
always wait at least five (5) seconds before plugging in the appliance
again. Otherwise, the appliance may not have time to clear properly
and fails to start.
