Unlike generic operating systems, FortiOS is designed specifically for hardware acceleration.
Old logs or antivirus definitions are clogging the flash disk. Fix: SSH into the FortiGate. Run execute formatlogdisk (clears logs, not config) or exec factoryreset (last resort). fortigate firmware
After performing a firmware upgrade on a FortiGate device running FortiOS 7.6.6 or 8.0.0 , you can view a detailed report directly in the GUI: Unlike generic operating systems
Administrators can enable automatic updates for minor patches through the FortiGate Administration Guide fortigate firmware
New device stuck after firmware upgrade to 7.6 - Fortinet Community
Understanding the nuances of FortiOS is critical for network administrators, as it determines everything from traffic throughput to the security posture of the infrastructure. 1. The Anatomy of FortiOS