Upgrading a System That Contains One SRP Module

If the system contains only one SRP module, you must power down the system before you upgrade the NVS card.

Caution: If you do not use the halt command before removing or powering down an SRP module, the system's NVS card can become corrupted.

To upgrade the NVS card on a system that contains one SRP module:

1. Enter the halt command.

   See JUNOSe System Basics Configuration Guide, Chapter 6, Managing Modules for information about the halt command.

   Warning: Do not insert any metal object, such as a screwdriver, or place your hand into an open slot or the backplane when the router is on. Remove jewelry (including rings, necklaces, and watches) before working on equipment that is connected to power lines. These actions prevent electric shock and serious burns.

   Caution: When handling modules, use an antistatic wrist strap connected to the router's ESD grounding jack. This action helps to protect the module from damage by electrostatic discharge.

2. Connect the antistatic wrist strap to the ESD grounding jack on the router.
3. Power down the system.
4. Remove the SRP module.
5. Replace the NVS card on the SRP module. (See Replacing an NVS Card.)
6. Power up the system. (See Powering Up ERX Routers.)

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