Using the redfish api to change bios settings

Question

Can the redfish api be used to change a bios setting on a poweredge server (C6320) ?

I can get it to report the settings but can't change anything & all the dell api info I can find is quite vague about using the patch command to make a change.

It's very easily done on an HP e.g. using the python requests module.

requests.patch(https://iLO_or_IDRAC_address/redfish/v1/Systems/1/Bios/Settings,json={"AdminName":"test"},verify=False,auth=('USERID','PASSWORD'))

but a similar approach on Dells using "redfish/v1/Systems/System.Embedded.1/Bios" & a Dell specific key:value pair doesn't work.

I'm using the latest iDrac/lifecycle controller firmware etc.

Can we "PATCH" a bios setting directly or do we need to create a job to do it ?

Thanks.

DELL-Chris H · Accepted Answer

CM9999,

It does appear that you can use Redfish API to change BIOS attributes, as seen on page 24 here, which also appears to provide examples. Just on a side note, this would require the latest updates for the BIOS and iDrac of your system.

cm9999 · Answer

Thanks, it looks like the Dell implementation uses a different URL for GET (to retrieve the current BIOS settings) and PATCH (to change a setting)

eg

requests.get('https://IDRAC/redfish/v1/Systems/System.Embedded.1/Bios',verify=False,auth=('USERID','PASSWORD')).json()
requests.patch('https://IDRAC/redfish/v1/Systems/System.Embedded.1/Bios/Settings','{"Attributes": {"NumLock": "Off"}}', headers=headers, verify=False,auth=('USERID','PASSWORD'))

That seems to work in that it changes the pending value.

The sample script also then creates a BIOS target config job which applies the change.

Systems Management General

Using the redfish api to change bios settings

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