FortiGate 60F downgrade

Forum|Forum|4 years ago
May 6, 2022
3 replies
3815 views

Hi All,

I hope you are having a great day.

Upgraded to FortiOS 7.2 and noticed there are 2 SFP ( grayed out ) under Network > Interfaces while there are no physical SFP ports. Also, I have missing "Firmware" menu under "System". Now I cannot downgrade to the previous firmware. I am new to Fortigate device. Any help/suggestions would be greatly appreciated. Thanks in advance.

FortiGate

Best answer by Toshi_Esumi

I don't know anything about 7.2 because I never tried it yet. But at least I know how to switch back to the previous version. See below:

https://community.fortinet.com/t5/FortiGate/Technical-Tip-Selecting-an-alternate-firmware-for-the-next/ta-p/191425

Toshi

Toshi_EsumiAnswer

SuperUser

I don't know anything about 7.2 because I never tried it yet. But at least I know how to switch back to the previous version. See below:

https://community.fortinet.com/t5/FortiGate/Technical-Tip-Selecting-an-alternate-firmware-for-the-next/ta-p/191425

Toshi

Rathan_FTNT

Staff

Hello asarwar,

Thank you for contacting Fortinet Community page

You can refer to the below to downgrade the Firmware.
https://docs.fortinet.com/document/fortigate/6.4.0/best-practices/555436/performing-a-firmware-downgrade

asarwarAuthor

New Member

Thanks Rathan, I will try this next time.

Yurisk

SuperUser

Important point to remember when downgrading - you will be able to Restore (i.e. upload complete configuration) the configuration after the downgrade only if the configuration matches the Firmware version - the firmware version is saved in configuration backup file as its header, so it can be checked before by opening in the Notepad. That is, if you have back up of configuration that say FortiOS 6.4.8, then downgrade the FGT to the version 6.4.8.

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