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Dell EMC Open Networking Troubleshooting Guide March 2019

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Boot processes

After the BIOS or U-Boot hardware verifications, POST tests run to verify the CPU and memory prior to booting the system software.

  • NOTE: The N1108EP-ON switch is a U-Boot-based platform.

After POST testing, there are three additional types of diagnostic tools you can use for testing your system.

  • Manual diagnostic boot process — To run additional testing, manually download and run the EDA tool. The EDA tool reports and logs pass/fail results.
  • ONIE with EDA — EDA is installed; you do not have to manually download the tool. Select the diagnostic option at boot-up. You can run this tool without a management interface.
  • Autorun EDA — EDA is installed; you do not have to manually download the tool. Select the diagnostic option at boot-up. You can run this tool without a management interface. The system always launches EDA in Quick Test mode to verify the hardware components before loading the software. If there is a failure at boot-up, based on the EDA configuration, the software may or may not continue the boot process.

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