Locally execute a SHA256 or MD5 terminal hash calculation command on your file:
md5sum FGT_VM64_KVM-v7.4.7.M-build2731-FORTINET.out.kvm.qcow2 Use code with caution. fgtvm64kvmv747mbuild2731fortinetoutkvmqcow2 download link
Compare your local hash against the hash listed on the Fortinet Support Portal. Locally execute a SHA256 or MD5 terminal hash