Dell Configuration Guide for the S4048–ON System 9.14.2.6

Important Points to Remember

• The startup configuration verification feature is disabled by default on the Dell EMC Networking OS.
• The feature is supported for startup configuration files stored in the local system only.
• The feature is not supported when the fastboot or the warmboot features are enabled on the system.
• If the startup configuration verification fails after a reload, the system does not load your startup configuration.
• After enabling the startup configuration verification feature, use the verified boot hash command to verify and store the hash value. If you don’t store the hash value, you cannot reboot the device until you verify the image hash.
• If OS image verification fails, the system does not load your startup configuration and displays an error message until you remove the verified boot command from the configuration.

Dell EMC Networking OS Behavior after System Power-Cycle

If the system reboots due reasons such as power-cycle, the current startup configuration may be different than the one you verified the hash using the verified boot hash command. When the system comes up, the system may use the last-verified startup configuration.

Dell EMC Networking recommends backing up the startup configuration to a safe location after you use the verified boot hash command. When the startup configuration verification fails, you can restore it from the backup.

The system continues to display a message stating that startup configuration verification failed. You can disable the startup configuration feature either by disabling startup configuration verification or save the running configuration to the startup configuration and update the hash for the startup configuration.