Ubuntu
shim-signed package

\EFI\BOOT\BOOTX64.EFI unable to find GRUBX64.EFI

Bug #1867387 reported by Lee Trager
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This bug affects 1 person
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shim-signed (Ubuntu)
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Bug Description

Machines managed by MAAS are configured to always netboot. When an operating system is deployed MAAS chainloads the local boot loader[1]. As per the 3.5.1.1 of UEFI spec[2] \EFI\BOOT\BOOTX64.EFI is attempted first. \EFI\BOOT\BOOTX64.EFI fails to find GRUBX64.efi as it is located in \EFI\UBUNTU(see screenshot).

[1] https://git.launchpad.net/maas/tree/src/provisioningserver/templates/uefi/config.local.amd64.template
[2] https://uefi.org/sites/default/files/resources/UEFI_Spec_2_8_A_Feb14.pdf

Revision history for this message
Lee Trager (ltrager) wrote :
Revision history for this message
Steve Langasek (vorlon) wrote :

\efi\boot\bootx64.efi is not *supposed* to find \efi\ubuntu\grubx64.efi, it is supposed to find either \efi\boot\grubx64.efi, or \efi\boot\fbx64.efi + \efi\*\BOOTX64.CSV. Please show the full contents of the EFI partition where this is happening.

Changed in shim-signed (Ubuntu):
status: New → Incomplete
Revision history for this message
Lee Trager (ltrager) wrote :

\EFI\BOOT\BOOTX64.EFI is always installed on an Ubuntu system be it MAAS or ISO.

Focal install via ISO from December 2019
# tree /boot/efi/
/boot/efi/
└── EFI
    ├── BOOT
    │   ├── BOOTX64.EFI
    │   ├── fbx64.efi
    │   └── mmx64.efi
    └── ubuntu
        ├── BOOTX64.CSV
        ├── grub.cfg
        ├── grubx64.efi
        ├── mmx64.efi
        └── shimx64.efi

3 directories, 8 files

Bionic install via MAAS today
# tree /boot/efi/
/boot/efi/
└── EFI
    ├── BOOT
    │   ├── BOOTX64.EFI
    │   └── fbx64.efi
    └── ubuntu
        ├── BOOTX64.CSV
        ├── grub.cfg
        ├── grubx64.efi
        ├── mmx64.efi
        └── shimx64.efi

3 directories, 7 files

Changed in shim-signed (Ubuntu):
status: Incomplete → New
Revision history for this message
Steve Langasek (vorlon) wrote :

Thanks. Can you please attach /boot/efi/EFI/ubuntu/BOOTX64.CSV from the maas-installed bionic system?

Revision history for this message
Lee Trager (ltrager) wrote :

On both the ISO install and MAAS install /boot/efi/EFI/ubuntu/BOOTX64.CSV contains

shimx64.efi,ubuntu,,This is the boot entry for ubuntu

Revision history for this message
Julian Andres Klode (juliank) wrote :

Please see if it works in focal

Changed in shim-signed (Ubuntu):
status: New → Incomplete
Revision history for this message
Julian Andres Klode (juliank) wrote :

As in, try installing the shim-signed from focal on the maas-installed bionic

Revision history for this message
Lee Trager (ltrager) wrote :

shim-signed from Focal does not fix the issue.

Changed in shim-signed (Ubuntu):
status: Incomplete → New
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