Web Services Interface Guide

51 Dell Lifecycle Controller Web Services Interface Guide for Windows
7.3 BIOS Firmware “Rollback”
The InstallFromSoftwareIdentity() method is used for installation of a previous version of a component
firmware that is available on the Lifecycle Controller (i.e. “rollback” of component firmware).
All steps to complete a rollback successfully are listed below.
Invoke InstallFromSoftwareIdentity() with the following parameters and syntax:
[InstanceID]: This is the instanceID of the SoftwareIdentify that is to be used to rollback the firmware to a
previous version. The InstanceID can have value such as:
DCIM:AVAILABLE:NONPCI:159:2.1.4
 It is available firmware on a NONPCI device.
 This refers BIOS version 2.1.4
EXAMPLE:
winrm i InstallFromSoftwareIdentity cimv2/root/dcim/ DCIM_SoftwareInstallationService
?CreationClassName=DCIM_SoftwareInstallationService
+SystemCreationClassName=DCIM_ComputerSystem +SystemName=IDRAC:ID
+Name=SoftwareUpdate -file:RollInputBIOS.xml -u:[USER] -p:[PASSWORD]
-r:https://[IPADDRESS]/wsman:443 -auth:basic -encoding:utf-8
The rollback input file, RollInputBIOS.xml, is shown below:
<p:InstallFromSoftwareIdentity_INPUT xmlns:p="http://schemas.dmtf.org/wbem/wscim/1/cim-
schema/2/root/dcim/DCIM_SoftwareInstallationService">
<p:Target xmlns:a="http://schemas.xmlsoap.org/ws/2004/08/addressing"
xmlns:w="http://schemas.dmtf.org/wbem/wsman/1/wsman.xsd">
<a:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</a:Address>
<a:ReferenceParameters> <w:ResourceURI>http://schemas.dell.com/wbem/wscim/1/cim-
schema/2/DCIM_SoftwareIdentity</w:ResourceURI> <w:SelectorSet>
<w:Selector Name="InstanceID">[InstanceID]</w:Selector> </w:SelectorSet>
</a:ReferenceParameters>
</p:Target>
</p:InstallFromSoftwareIdentity_INPUT>
OUTPUT:
When this method is executed, a jobid or an error message is returned.