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xavidpr4
xavidpr4
New Member
September 8, 2016
Question

Fortiwifi upgrade path

  • September 8, 2016
  • 1 reply
  • 11117 views

Hi,

 

I have two FortiWifi 60C, currently at FWF60C-4.00-FW-build482 firmware. What could happen if I don't follow the recommended upgrade path? Can I upgrade them directly to v5.0 without risk of bricking the devices?

 

At this moment both firewalls are almost factory default so, there is no need to preserve the configuration.

 

Thanks in advance.

1 reply

Toshi_Esumi
SuperUser
Toshi_Esumi
SuperUser
September 9, 2016

Likely you would lose a chunk of configuration because the new software doesn't understand the config on the old software, then that part would be thrown away. I don't recommend it unless you don't have to keep the old config and are planning configure it from scratch after the upgrade.

Also 5.0 started checking more for config inconsistency and automatically correct them during upgrade, while 4.x had less check. If there was a conflict, upgrade process might throw a legit one and keep not-legit-anymore one. If that happens, you need to recover the thrown-out one after removing the not-legit-anymore one. The keys to solve those puzzles are in "diag debug config-error-log read" CLI output after each upgrade step.

FortiOSman
FortiOSman
New Member
September 9, 2016

Bricking the device isn't the concern, it's your running configuration that can be altered. 

 

If you do decide to skip versions, thoroughly compare your config files before an after. Like the user above said, you will most likely lose some configuration because it is not directly compatible in the new version. Following the recommended upgrade path ensures your configuration is properly updated through each version.

 

I've jumped firmware versions in the past. It's definitely not recommended, but as long as you are aware of what changed in your config and you go back and correct it, you should be fine.

 

 

FortiOSman,

Up, Up, and Away!

MikePruett
MikePruett
New Member
September 10, 2016

Not following the proper upgrade path can cause........unexpected....results.

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