The string does not work as-is. But the intended FortiManager KVM image (properly named) works reliably on KVM hypervisors when deployed correctly.
./deploy_fmg.sh ... work Then work might be a flag meaning “enable working mode” or a mis-typed --workdir . fmgvm64kvmv6build1183fortinetoutkvmzip work
It is highly likely that the string you provided — — is a fragmented, concatenated, or corrupted identifier related to a Fortinet virtual machine image . This specific combination of characters is not a standard filename, download link, or official product key directly searchable in public Fortinet repositories. The string does not work as-is