[Linaro-uefi] how to set default boot path to hard disk?

Hi All,

I am trying to boot GRUB present at HARD-DISK connected over PCI and in AHCI mode. I am able to boot by setting default boot path as below.

gArmPlatformTokenSpaceGuid.PcdDefaultBootDevicePath|L"PciRoot(0x1)/Pci(0x0,0x0)/Sata(0x0,0x0,0x0)/HD(1,GPT,E3AE6975-BACE-464E-91E1-BB4FE9954047,0x800,0x31801)/\EFI\BOOT\BOOTAA64.EFI"

however, i see the Partition GUID(Partition unique GUID: E3AE6975-BACE-464E-91E1-BB4FE9954047) which is part of path changes when ever hard disk is repartitioned or created with partition.

are there any other way to set the default boot path which is consistent and not depends on GUID.

thanks Ganapat