Verifying Software Upgrades; Verifying A Nondisruptive Upgrade - Cisco Nexus 9000 Series Troubleshooting Manual

Verifying Software Upgrades

Checklist
Copy the new image onto your supervisor modules in bootflash: or slot0:.
Use the show install all impact command to verify that the new image is healthy and the impact
that the new load will have on any hardware with regard to compatibility. Check for compatibility.
Copy the startup-config file to a snapshot configuration in NVRAM. This step creates a backup
copy of the startup configuration file.
Save your running configuration to the startup configuration.
Back up a copy of your configuration to a remote TFTP server.
Schedule your upgrade during an appropriate maintenance window for your network.
After you have completed the checklist, you are ready to upgrade or reboot the systems in your network.
It is normal for the active supervisor to become the standby supervisor during an upgrade.
Note
Up to 100 log messages with a severity level of critical and below (levels 0, 1, and 2) are saved in NVRAM.
Note
You can view this log at any time by entering the show logging nvram command.

Verifying Software Upgrades

You can use the show install all status command to watch the progress of your software upgrade or to view
the ongoing install all command or the log of the last installed install all command from a console, SSH, or
Telnet session. This command shows the install all output on both the active and standby supervisor module
even if you are not connected to the console terminal.

Verifying a Nondisruptive Upgrade

When you initiate a nondisruptive upgrade, Cisco NX-OS notifies all services that an upgrade is about to start
and determines whether the upgrade can proceed. If a service cannot allow the upgrade to proceed, the service
aborts the upgrade, and you are prompted to enter the show install all failure-reason command to determine
the reason why the upgrade cannot proceed.
Do you want to continue with the installation (y/n)?
Install is in progress, please wait.
Notifying services about the upgrade.
>[#
Please issue "show install all failure-reason" to find the cause of the failure.<---prompt
failure-reason
Install has failed. Return code 0x401E0066 (request timed out).
Please identify the cause of the failure, and try 'install all' again.
switch# show install all failure-reason
Service: "xxx" failed to respond within the given time period.
Cisco Nexus 9000 Series NX-OS Troubleshooting Guide, Release 7.x
12
] 0% -- FAIL. Return code 0x401E0066 (request timed out).
Troubleshooting Installations, Upgrades, and Reboots
[n] y
Done