[coreboot] Maintain boot order for multiple EFI based OS

Leahy, Leroy P leroy.p.leahy at intel.com
Thu Mar 23 00:51:27 CET 2017

Hi Maurice and Prince,

Would you please help answer the question below?

Hi Sibi,

The maintainers for the various EDK-II packages can be found in payloads/external/tianocore/tianocore/Maintainers.txt.  In your case, search for CorebootPayloadPkg.

Lee Leahy

From: coreboot [mailto:coreboot-bounces at coreboot.org] On Behalf Of Sibi.Rajasekaran at dell.com
Sent: Wednesday, March 22, 2017 6:20 AM
To: coreboot at coreboot.org
Subject: [coreboot] Maintain boot order for multiple EFI based OS

Dell - Internal Use - Confidential

We are using the coreboot project with Intel fsp to boot the Intel Rangeley based Mohonpeak CPU. We have built the Tianocore EDK2 project and used it as the payload to bring UEFI services to this bootloader. With this payload, we are able to boot a EFI based OS successfully.

As a next step, we are looking at installing multiple EFI OS and maintaining boot order among the OS.
How is boot order maintained with UEFI payload?
Is it through EFI NVRAM variables? If so, does coreboot support NVRAM variables?

Can you please point us in the right direction.

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