Troubleshooting Tip: Unable to restore configuration with error 'failed to restore system configuration'

[iskandar_lie]

Description	This article explains how to solve an issue where restoration of configuration fails.
Scope	FortiGate, FortiOS 6.2.x.
Solution	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: 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 2) IPS global settings: # show ips global config ips global set database regular  -->set to regular  end 3. Antivirus settings: # show antivirus settings config antivirus settings set default-db normal -->set to normal end  Next, take the following steps: 1) Disable autoupdate: #config sys autoupdate schedule set status disable end 2) 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 Try restoring the configuration again. If the issue persists, contact Fortinet TAC. Related documentation: Technical Tip: How to save and restore configurati... - Fortinet Community