Symptom
When performing an upgrade, a false "strict incompatibility" may be observed during the install process:
switch# sh install all impact nxos bootflash:nxos.7.0.3.I4.7.bin
Installer will perform impact only check. Please wait.
Installer is forced disruptive
"Running-config contains configuration that is incompatible with the new <<<<<<<<
image (strict incompatibility).
Please run 'show incompatibility-all nxos ' command to find out
which feature needs to be disabled.".
Compatibility check is done:
Module bootable Impact Install-type Reason
------ -------- -------------- ------------ ------
1 yes disruptive reset Incompatible image
Additional info for this installation:
--------------------------------------
"Running-config contains configuration that is incompatible with the new <<<<<<<<
image (strict incompatibility).
Please run 'show incompatibility-all nxos ' command to find out
which feature needs to be disabled."
Service "vpc" in vdc 1: vPC feature is enabled. Upgrade will be
disruptive!!!
However, the output of 'show incompatibility-all nxos ' indicates that no incompatible configurations were found.
Conditions
Observed when upgrading if the source image is between 7.0(3)I2(2) and 7.0(3)I2(3) inclusive, and the destination is a 7.0(3)I3(x) image or later.
Workaround
Message can safely be ignored. The upgrade will proceed without any issue.
Further Problem Description