FGT - 1000F Upgrade failed : "File is not an update file"

[Bistrol]

Hi,

I must upgrade a Fortigate 1000F from 7.2.10 to 7.4.8.

I receive an error that i've never seen : "File is not an update file".

I'v verified checksum of the file.

I've got the same error when i try to upload the file directly to the gui and if i try the upgrade with fortiguard servers.
The support team send me a firmware image to compare with the file i've downloaded and the files are exactly the same.

Has anyone ever encountered this problem?

Thanks
Simon

[Atul_S]

Hi Simon,

It may be because the file type is unexpected. It does happen sometimes due to a few file-handling methods used in the backend for zip/cache/browser modifications, etc.

[AEK]

Hi Simon

Please share the filename you downloaded.

And the command "get sys status" from your FGT (you can hide the SN).