It looks like ucf is failing instead of prompting to update the config file. I'm not sure why that would fail.
** Package changed: grub2 (Ubuntu) => ucf (Ubuntu) ** Changed in: ucf (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ucf in Ubuntu. https://bugs.launchpad.net/bugs/1669270 Title: package grub-pc 2.02~beta2-36ubuntu3.7 failed to install/upgrade: subprocess installed post-installation script returned error exit status 10 Status in ucf package in Ubuntu: New Bug description: When I start my screen, a blue screen appears with 2 options, 1. GNU/grub-pc 2. Advanced options for ubuntu. And I have to always click on 1 to get my PC started(or it automatically chooses 1). ProblemType: Package DistroRelease: Ubuntu 16.04 Package: grub-pc 2.02~beta2-36ubuntu3.7 ProcVersionSignature: Ubuntu 4.4.0-64.85-generic 4.4.44 Uname: Linux 4.4.0-64-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 Date: Thu Mar 2 10:55:13 2017 DpkgHistoryLog: Start-Date: 2017-03-02 10:55:02 Commandline: /usr/bin/unattended-upgrade Upgrade: libgd3:amd64 (2.1.1-4ubuntu0.16.04.5, 2.1.1-4ubuntu0.16.04.6), libtiff5:amd64 (4.0.6-1, 4.0.6-1ubuntu0.1) DuplicateSignature: package:grub-pc:2.02~beta2-36ubuntu3.7 Setting up unattended-upgrades (0.90ubuntu0.3) ... dpkg: error processing package unattended-upgrades (--configure): subprocess installed post-installation script returned error exit status 10 ErrorMessage: subprocess installed post-installation script returned error exit status 10 InstallationDate: Installed on 2017-02-16 (13 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) InvalidGrubScript: /etc/default/grub ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-64-generic root=UUID=3cfa4b16-e389-41c3-a5c6-98add8a87218 ro RelatedPackageVersions: dpkg 1.18.4ubuntu1.1 apt 1.2.19 SourcePackage: grub2 Title: package grub-pc 2.02~beta2-36ubuntu3.7 failed to install/upgrade: subprocess installed post-installation script returned error exit status 10 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ucf/+bug/1669270/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp