Comment 7 for bug 1242271

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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 10:59:41PM -0000, Денис wrote:
> In attachment screen of gparted with partitions.

Ok, that shows that you do have a /boot/efi partition. Do you have the
grub-efi-amd64 package installed?