Barracuda Networks NG FIREWALL 5.0.3 - Manual (Page 13)

13 Release and Migration Notes - Determine Your Update Scenario
Determine Your Update Scenario
If you are going to update firmware version 4.2 to Barracuda NG Firewall 5.0.3, Barracuda Networks strongly
recommends to study the instructions given in this chapter, as, under certain circumstances, no countermanding is
possible once the updating process was initiated.
Updating to Barracuda NG Firewall minor release 5.0.3 is only possible from release versions 4.2.x, 5.0, 5.0.1,
or 5.0.2. Direct updating from release versions 4.0.x or 3.x is not possible. Update to 4.2 first.
To update from firmware 4.2.x, use the update.[xxx].tgz file.
To update from firmware 5.0.X, use the patch.[xxx].tgz file.
For a fresh installation, use the *.iso file.
In case you are updating a HA synchronized unit to firmware release version 5.0.3 while not updating its secondary
unit as well, or vice versa, so that the units run on different firmware versions, it may be necessary to re-synchronize
the units after updating. To do so, click
Firewall > Live > Show Proc , select the process named Sync Handler and
choose Kill Selected . Session synchronization will automatically re-appear subsequently.
For the reason of updating speed, updating via the Firmware Update... button in Barracuda NG Admin is not
recommended. This is especially valid for slow hardware or the flash based appliances F10, F100 or F101, although
it is possible. Barracuda Networks strongly recommends to perform the updating process using SSH as described
above.