[Bug 1065180] Re: Wrong EFI boot entry on system with secure boot
Stéphane Graber
stgraber at stgraber.org
Wed Oct 10 18:27:18 UTC 2012
18:26 < slangasek> stgraber: could you attach the output of 'sh -x
/usr/sbin/grub-install --uefi-secure-boot'?
http://paste.ubuntu.com/1271664/
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https://bugs.launchpad.net/bugs/1065180
Title:
Wrong EFI boot entry on system with secure boot
Status in “grub2” package in Ubuntu:
New
Bug description:
I installed shim-signed and grub-efi-amd64-signed on a system
supporting secureboot but in setup mode.
I then manually ran grub-install to force secureboot to be installed, confirmed that the efi partition content looks good:
stgraber at castiana:~$ find /boot/efi/
/boot/efi/
/boot/efi/EFI
/boot/efi/EFI/ubuntu
/boot/efi/EFI/ubuntu/grubx64.efi
/boot/efi/EFI/ubuntu/shimx64.efi
/boot/efi/EFI/ubuntu/grub.cfg
Then tried to boot with SecureBoot enabled with the Windows key. The
firmware refused to boot.
After reverting to setup mode to get the system booting again, efibootmgr reports the following ubuntu entry:
stgraber at castiana:~$ sudo efibootmgr --verbose | grep ubuntu
Boot0018* ubuntu HD(1,800,2f000,fe060401-4d67-4ea8-8f0d-0f5910471a15)File(\EFI\ubuntu\grubx64.efi)
This seems wrong as it should be booting shimx64.efi instead.
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