Looks like system is entering kernel panic state, if you have active support please open a ticket to investigate the core/crash . If you don't have support, can you try using any 6.4.x version instead of 7.0.0 ?
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The issue you're experiencing, characterized by a boot loop and a kernel panic, seems to be related to a failure in the hardware or firmware of the device. The error messages you've shared indicate a failure to initialize the hardware properly, specifically the Network Processor (NP6).
There are a few potential causes for this issue:
1. **Corrupted firmware:** If the firmware on the device is corrupted, it could cause the device to fail during boot. You can try reinstalling the firmware to see if this resolves the issue.
2. **Hardware failure:** The error messages seem to suggest a hardware failure. In this case, it might not be possible to fix the issue without replacing the failed hardware.
3. **Incompatible firmware:** If you're using a firmware version that isn't compatible with your hardware, it could cause issues during boot. Ensure you're using a firmware version that's compatible with your FortiGate 900D.
Here are a few steps you can try:
- **Reinstall the firmware:** You can try reinstalling the firmware via TFTP again. Ensure you're using the correct firmware for your device and that the file isn't corrupted.
- **Reset to factory defaults:** If you can access the CLI, you can try resetting the device to factory defaults using the "execute factoryreset" command. Be aware that this will erase all configuration on the device.
- **Contact support:** Given the complexity of this issue, it might be best to contact Fortinet's support. They can provide more detailed troubleshooting and potentially arrange for a hardware replacement if necessary.
Please remember to backup any configuration before attempting any recovery methods. Let me know if you need help with any of these steps.
As per the logs messages shared it seems device is stuck in boot loop and kernel panic, it might be caused due to failure in the hardware or firmware of the device. Please try flash formatting the device and try reinstalling the firmware using TFTP and then check if device boots up. Please follow below KB for flash format and reinstalling the firmware using TFTP:
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