This article explains how to solve an issue where restoration of configuration fails.
FortiGate, FortiOS 6.2.x.
This issue commonly occurs with small-scale FortiGate models such as the 30, 40, and 50 Series due to their limited capacity.
When restoring the configuration from the GUI, the following warning may appear:
To work around this issue, first check the following:
Step 1: Storage capacity. Run the following command in the FortiGate CLI (example output is provided below):
# fnsysctl df -h Filesystem Size Used Available Use% Mounted on rootfs 504.3M 69.0M 435.2M 14% / tmpfs 504.3M 69.0M 435.2M 14% / none 656.2M 71.3M 584.8M 11% /tmp none 656.2M 536.0K 655.7M 0% /dev/shm none 656.2M 19.6M 636.5M 3% /dev/cmdb /dev/mtd6 18.0M 17.7M 244.0K 99% /data <-- running out of capacity /dev/mtd7 30.0M 28.5M 1.4M 95% /data2
Step 2: IPS global settings:
# show ips global config ips global set database regular -->set to regular end
Step 3: Antivirus settings:
# show antivirus settings config antivirus settings set default-db normal -->set to normal end
Step 4: Disable autoupdate:
#config sys autoupdate schedule set status disable end
Step 5: Delete the geo-ip database. The FortiGate will reboot after the operation is confirmed.
# diagnose geoip delete-geoip-db
After rebooting, the FortiGate will have more space available.
# fnsysctl df -h Filesystem Size Used Available Use% Mounted on --truncated-- /dev/mtd6 18.0M 17.7M 244.0K 84% /data <-- more space has been made available /dev/mtd7 30.0M 28.5M 1.4M 84% /data2
Step 6: Try restoring the configuration again. If the issue persists, contact Fortinet TAC.