Appendix C - Using Boot Order Schema to Set Boot Order

NVIDIA Docs Hub NVIDIA Networking BlueField DPUs / SuperNICs & DOCA NVIDIA BlueField DPU Management and Initial Provisioning Appendix C - Using Boot Order Schema to Set Boot Order

Check the current boot order by doing GET on the ComputerSystem schema over 1GbE OOB to the DPU BMC. Look for the BootOrder attribute under the Boot.

Copy
Copied!

            
            curl -k -X GET -u root:<password> https://<DPU-BMC-IP>/redfish/v1/Systems/<SystemID>/ | python3 -m json.tool
{
 ....
 "Boot": {
	....
"BootOrder": [
            	"Boot0017",
            	"Boot0001",
            	"Boot0002",
            	"Boot0003",
           		"Boot0004",
            	"Boot0005",
            	"Boot0006",
            	"Boot0007",
 	],
	....
     }
....
}

To get the details of a particular entity in the BootOrder array, perform a GET to the respective BootOption URL over 1GbE OOB to the DPU BMC. For example, to get details of Boot0006, run:

Copy
Copied!

            
            curl -k -X GET -u root:<password> https://<DPU-BMC-IP>/redfish/v1/Systems/<SystemID>/BootOptions/Boot0006 | python3 -m json.tool
 
{
    "@odata.type": "#BootOption.v1_0_3.BootOption",
    "@odata.id": "/redfish/v1/Systems/SystemId/BootOptions/Boot0006",
    "Id": "Boot0006",
    "BootOptionEnabled": true,
    "BootOptionReference": "Boot0006",
    "DisplayName": "UEFI HTTPv6 (MAC:B8CEF6B8A006)",
    "UefiDevicePath":   "PciRoot(0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)/Pci(0x0,0x0)/MAC(B8CEF6B8A006,0x1)/IPv6(0000:0000:0000:0000:0000:0000:0000:0000,0x0,Static,0000:0000:0000:0000:0000:0000:0000:0000,0x40,0000:0000:0000:0000:0000:0000:0000:0000)/Uri()"
}

To change the boot order, the entire BootOrder array must be PATCHed to the pending settings URI. For this example of the BootOrder array, if you intend to have Boot0006 at the beginning of the array, then the PATCH operation is as follows:

Warning

Updating the BootOrder array results in a permanent boot order change (persistent across reboots).
Copy

Copied!
```
            
            curl -k -u root:<password> -X PATCH -d '{ "Boot": { "BootOrder": [ "Boot0006", "Boot0017", "Boot0001", "Boot0002", "Boot0003", "Boot0004", "Boot0005", "Boot0007", ] }}' https://<DPU-BMC-IP>/redfish/v1/Systems/<SystemID>/Settings | python3 -m json.tool
        
```
After a successful PATCH, reboot the DPU and check if the settings have been applied by doing a GET on the ComputerSystem schema.
If the BootOrder array is updated as intended then the settings have been applied and the DPU should boot as per the order in preceding cycles.