Description

Custome has a switch that is part of a virtual chassis that is failing to load. The Junos load currently on the node is going into a boot loop and will not progress pass that point. Need assistance with procedure to load this node with a USB drive.

Symptoms

Customer tries to perform the upgrade, but the device gets stuck in a loop. 

Solution

During troubleshooting, because the device was stuck in a boot loop, the recommended action is to perform a format install. This process involves completely wiping the device's storage and reinstalling the Junos operating system from scratch. A format install is commonly performed when the existing Junos installation is corrupted, when a different version of Junos needs to be installed with no residual configurations or files, or when the device needs to be recovered from a critical failure.
 

The format install process involves formatting the internal storage, such as compact flash or SSD, and removing all configurations, logs, and any other files stored on the device.
[EX/QFX] Procedure to format install QFX5K device using a USB       
 

  • What happened during the troubleshooting?

The device got stuck in a loop during the format install process, and recovery attempts were unsuccessful. As a result, it is deemed a hardware issue, and the next step is to proceed with a chassis replacement via RMA.

Modification History

2024-09-05 : Article Created

Related Information

[EX/QFX] Procedure to format install QFX5K device using a USB       

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