Getting EFI bootorder using PowerCLI

[OlegIV]

Hello, I hope somebody could help me on how to determine EFI boot order using PowerCLI or SDK.


For testing I've created new VM, changed default firmware type from BIOS to EFI for new linux VM, this in turn resulted in using GPT instead of MBR and creation of EFI partition during os setup. From the linux guest I could clearly see what is happening during the boot:

root@debian:~# efibootmgr -v

BootCurrent: 0005

BootOrder: 0005,0000,0001,0002,0003,0004

Boot0000* EFI Virtual disk (0.0)        ACPI(a0341d0,0)PCI(10,0)SCSI(0,0)

Boot0001* EFI Floppy    ACPI(a0341d0,0)PCI(7,0)ACPI(60441d0,0)

Boot0002* EFI VMware Virtual IDE CDROM Drive (IDE 1:0)  ACPI(a0341d0,0)PCI(7,1)ATAPI(1,0,0)

Boot0003* EFI Network   ACPI(a0341d0,0)PCI(15,0)PCI(0,0)MAC(000c299be280,1)

Boot0004* EFI Internal Shell (Unsupported option)       MM(b,3efce000,3f357fff)

Boot0005* debian        HD(1,800,2f000,7d85c048-b826-4f18-a3ce-9aeac8860e3c)File(\EFI\debian\grubx64.efi)

Clearly It will launch grubx64.efi during startup.

So, the problem is how to determine this from host. For now the only visible thing for me is 

PowerCLI C:\> (get-view (Get-VM -Name "debian efi").ID).Config.firmware

efi

PowerCLI C:\> (get-view (Get-VM -Name "debian efi").ID).Config.BootOptions

BootDelay        : 0

EnterBIOSSetup   : False

BootRetryEnabled : False

BootRetryDelay   : 10000

BootOrder        :

DynamicType      :

DynamicProperty  :

Perhaps I've overlooked something, but as seems I can't find a way to determine the bootorder. I've also checked SDK docs, and can't find this too.

Anyone has a solution? Or it's just not implented and the only way is to analyze nvram file.

Thanks in advance for the comments/ideas.

[LucD]

Afaik, that info is not available through the API.

Like you suspected, byte counting in the NVRAM file :smileygrin: