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The Disappearance of EFI vars
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| #!ipxe | |
| # Simplified to minimal case | |
| dhcp || goto err_dhcp | |
| :local | |
| echo "IPXE01@${net0/mac:hexraw} EXIT" | |
| exit | |
| :err_dhcp | |
| echo "IPXE01@${net0/mac:hexraw} DHCP Failure" | |
| sleep 5 | |
| goto local |
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| Ingredients | |
| - Plain Ubuntu 14.04.2 install, UEFI mode | |
| - HW involved - low power Atom and NUC Haswell boxen | |
| - ipxe.efi | |
| - Firmware configured to first boot from UEFI netboot, then from grub.efi | |
| BootCurrent: 0000 | |
| Timeout: 1 seconds | |
| BootOrder: 0003,0004,0000,0002 | |
| Boot0000* ubuntu HD(1,800,100000,a22ec259-773f-4a2c-9dd2-b7c5d980993e)File(\EFI\ubuntu\shimx64.efi) | |
| Boot0002 ubuntu HD(1,800,100000,a22ec259-773f-4a2c-9dd2-b7c5d980993e)File(\EFI\Ubuntu\grubx64.efi) | |
| Boot0003* UEFI: IPV4 Realtek PCIe GBE Family Controller ACPI(a0341d0,0)PCI(1c,2)PCI(0,0)MAC(f07959de54bb,0)IPv4(0.0.0.0:0<->0.0.0.0:0,0, 0..BO | |
| Boot0004* UEFI: IPV6 Realtek PCIe GBE Family Controller ACPI(a0341d0,0)PCI(1c,2)PCI(0,0)MAC(f07959de54bb,0)030d3c000000000000000000000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000..BO | |
| Should: | |
| - Load normally | |
| - `sudo efibootmgr -v` should list BootNNNN variables | |
| Result: | |
| - System loads | |
| - There are no BootNNNN variables and in general the available set is small: | |
| * Should boot properly from local disk |
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