Perform an operating system upgrade on a Dell switch only if the switch is in NOS mode. You can perform an operating system upgrade on a Dell switch only with supported operating systems.
For an operating system upgrade, in the switch YAML file, the attributes, operatingsystemname and overwriteinstallation are required. The operatingsystemname attribute is set to the operating system media name. The upgrade is performed only if the overwriteinstallation attribute is set to true.
Complete the following steps for a NOS operating system upgrade of a Dell switch: