Troubleshooting Software System Reboots; Power-On Or Switch Reboot Hangs - Cisco Nexus 9000 Series Troubleshooting Manual

Troubleshooting Software System Reboots

Before You Begin
Log into the system through the console, Telnet, or SSH port of the active supervisor.
Create a backup of your existing configuration file, if required.
SUMMARY STEPS
1. install all [nxos bootflash:filename]
2. show module
DETAILED STEPS
Command or Action
Step 1 install all [nxos
bootflash:filename]
Step 2
show module

Troubleshooting Software System Reboots

Power-On or Switch Reboot Hangs

Problem
A power-on or switch reboot
hangs for a dual supervisor
configuration
Cisco Nexus 9000 Series NX-OS Troubleshooting Guide, Release 7.x
14
Purpose
Performs the upgrade.
Note If the configuration meets all guidelines when the install all command is used,
all modules (supervisor and switching) are upgraded.
If you enter the install all command without specifying a filename, the command
Note
performs a compatibility check, notifies you of the modules that will be upgraded,
and confirms that you want to continue with the installation. If you choose to
proceed, it installs the NXOS software image that is currently running on the
switch and upgrades the BIOS of various modules from the running image if
required.
Exits the system console and opens a new terminal session to view the upgraded supervisor
module.
Possible Cause
The bootflash is
corrupted.
The BIOS is
corrupted.
The nx-os image is
corrupted.
Boot parameters are
incorrect.
Troubleshooting Installations, Upgrades, and Reboots
Solution
See Corrupted Bootflash Recovery, on page
Replace this module. Contact your customer support
representative to return the failed module.
Power cycle the switch if required and press Ctrl-C
when the switch displays the "Loading Boot Loader"
message to interrupt the boot process at the >loader
prompt.
Verify and correct the boot parameters and reboot.
15.