Ubuntu
shim-signed package

  1. Bug #1242271
  2. Comment #9

Comment 9 for bug 1242271

Revision history for this message
Steve Langasek (vorlon) wrote : Re: [Bug 1242271] Re: package shim-signed 1.3+0.4-0ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

On Wed, Oct 23, 2013 at 11:22:09PM -0000, Денис wrote:
> Yea, I don't have installed this package.

Sorry, I don't understand what you mean here. Do you mean you do have the
grub-efi-amd64 package installed, or you don't have it installed?

> I install this with apt-get install and reload my computer. Now I have
> message: Invalid EUFI signature. After that Windows 8 load by default :((

The Windows bootloader will not boot anything not signed by the Microsoft
key, even if Secure Boot is disabled in the firmware. If your Ubuntu
install has not yet been set up for Secure Boot, you will need to disable
Secure Boot, and manually choose Ubuntu from a firmware boot menu.

If you installed grub-efi-amd64, did you also try again to install
shim-signed after that? This should be the last step to enable Secure Boot
on your Ubuntu install.