Hi Steve,

yes, it is possible
after installing ubuntu 17.04 i could not anymore to use the cdrom or usb
port for booting from there..
the laptop is a lenovo b50-10..


2018-04-30 6:43 GMT+02:00 Steve Langasek <email address hidden>:

> The error in your log is:
> Setting up shim-signed (1.34.9+13-0ubuntu2) ...
> Installing for x86_64-efi platform.
> Could not delete variable: Interrupted system call
> grub-install: error: efibootmgr failed to register the boot entry: Block
> device required.
> dpkg: error processing package shim-signed (--configure):
>  installed shim-signed package post-installation script subprocess
> returned error exit status 1
>
> It appears that there is a problem with your firmware that prevents shim
> from uploading the bootloader configuration variables.  Is it possible
> that you are affected by
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1734147 ?
>
> ** Changed in: shim-signed (Ubuntu)
>        Status: New => Incomplete
>
> ** Summary changed:
>
> - package shim-signed 1.34.9+13-0ubuntu2 failed to install/upgrade:
> installed shim-signed package post-installation script subprocess returned
> error exit status 1
> + Could not delete variable: Interrupted system call (package shim-signed
> 1.34.9+13-0ubuntu2 failed to install/upgrade: installed shim-signed package
> post-installation script subprocess returned error exit status 1)
>
> --
> You received this bug notification because you are subscribed to a
> duplicate bug report (1767881).
> https://bugs.launchpad.net/bugs/1767761
>
> Title:
>   Could not delete variable: Interrupted system call (package shim-
>   signed 1.34.9+13-0ubuntu2 failed to install/upgrade: installed shim-
>   signed package post-installation script subprocess returned error exit
>   status 1)
>
> Status in shim-signed package in Ubuntu:
>   Incomplete
>
> Bug description:
>   This prevents my system from fully upgrading.
>
>   ProblemType: Package
>   DistroRelease: Ubuntu 18.04
>   Package: shim-signed 1.34.9+13-0ubuntu2
>   ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
>   Uname: Linux 4.15.0-15-generic x86_64
>   NonfreeKernelModules: wl nvidia_modeset nvidia
>   .proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or
> directory: '/proc/sys/kernel/moksbstate_disabled'
>   ApportVersion: 2.20.9-0ubuntu7
>   Architecture: amd64
>   Date: Sun Apr 29 10:16:56 2018
>   ErrorMessage: installed shim-signed package post-installation script
> subprocess returned error exit status 1
>   InstallationDate: Installed on 2015-09-02 (970 days ago)
>   InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
>   Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal,
> 3.6.5-3
>   PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal,
> 2.7.15~rc1-1
>   RelatedPackageVersions:
>    dpkg 1.19.0.5ubuntu2
>    apt  1.6.1
>   SecureBoot: 6   0   0   0   0
>   SourcePackage: shim-signed
>   Title: package shim-signed 1.34.9+13-0ubuntu2 failed to install/upgrade:
> installed shim-signed package post-installation script subprocess returned
> error exit status 1
>   UpgradeStatus: No upgrade log present (probably fresh install)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/shim-signed/+
> bug/1767761/+subscriptions
>



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