How to set the boot manager in exadata Linux

[root@sukhoi~]# efibootmgr -v BootCurrent: 0009 Timeout: 1 seconds BootOrder: 0000,0001,0002,0003,0006,0007 Boot0000* ExadataLinux_1 HD(2,GPT,147745f1-4f73-42b2-bc34-f64dfc876d29,0x100040,0x80000)/File(\EFI\redhat\shimx64.efi) Boot0001* NET0:PXE IP4 Intel(R) I210 Gigabit Network Connection PciRoot(0x0)/Pci(0x1c,0x4)/Pci(0x0,0x0)/MAC-ADDRESS,1)/IPv4(0.0.0.00.0.0.0,0,0)..BO Boot0002* NET1:PXE IP4 Oracle Dual Port 10Gb/25Gb SFP28 Ethernet Controller PciRoot(0x1)/Pci(0x0,0x0)/Pci(0x0,0x0)/MAC(MAC-ADDRESS,1)/IPv4(0.0.0.00.0.0.0,0,0)..BO Boot0003* NET2:PXE IP4 Oracle Dual Port 10Gb/25Gb SFP28 Ethernet Controller PciRoot(0x1)/Pci(0x0,0x0)/Pci(0x0,0x1)/MAC( MAC-ADDRESS,1)/IPv4(0.0.0.00.0.0.0,0,0)..BO Boot0006* PCIE1:PXE IP4 Nvidia Network Adapter - B8:CE:F6:23:15:9A PciRoot(0x8)/Pci(0x0,0x0)/Pci(0x0,0x0)/MAC(MAC-ADDRESS,1)/IPv4(0.0.0.00.0.0.0,0,0)..BO Boot0007* PCIE1:PXE IP4 Nvidia Network Adapter - B8:CE:F6:23:15:9B PciRoot(0x8)/Pci(0x0,0x0)/Pci(0x0,0x1)/MAC(MAC-ADDRESS,1)/IPv4(0.0.0.00.0.0.0,0,0)..BO MirroredPercentageAbove4G: 0.00 MirrorMemoryBelow4GB: false [root@sukhoi~]# efibootmgr -n 0000 BootNext: 0000 BootCurrent: 0009 Timeout: 1 seconds BootOrder: 0000,0001,0002,0003,0006,0007 Boot0000* ExadataLinux_1 Boot0001* NET0:PXE IP4 Intel(R) I210 Gigabit Network Connection Boot0002* NET1:PXE IP4 Oracle Dual Port 10Gb/25Gb SFP28 Ethernet Controller Boot0003* NET2:PXE IP4 Oracle Dual Port 10Gb/25Gb SFP28 Ethernet Controller Boot0006* PCIE1:PXE IP4 Nvidia Network Adapter - MAC-ADDRESS Boot0007* PCIE1:PXE IP4 Nvidia Network Adapter - MAC-ADDRESS MirroredPercentageAbove4G: 0.00 MirrorMemoryBelow4GB: false