do-release-upgrade leaves the system in a unbootable state

[Leonardo Müller]

I upgraded my Xubuntu Artful install to Bionic using the following command:

do-release-upgrade -d

And the entire process went smoothly, when it was asked to reboot the system I chose yes. After that, Xubuntu failed to boot with the following message:

Error 0x1A (Security Violation)

Then I rebooted and pressed F12 to see the available boot options and there were two equal entries from the disk where Xubuntu Artful was installed.

Then I chose another install from another disk, and from that system I repaired the bootloader using the following command:

LANGUAGE=C sudo grub-install --efi-directory=/media/usuario/EFI\ SYSTEM/ --boot-directory=/media/usuario/Linux64/boot/ --uefi-secure-boot /dev/sdb

Its output was:

Installing for x86_64-efi platform.
GUID Partition Table Header signature is wrong: be5608740128e852 != 5452415020494645
GUID Partition Table Header signature is wrong: 0 != 5452415020494645
GUID Partition Table Header signature is wrong: be5608740128e852 != 5452415020494645
GUID Partition Table Header signature is wrong: 0 != 5452415020494645
GUID Partition Table Header signature is wrong: be5608740128e852 != 5452415020494645
GUID Partition Table Header signature is wrong: 0 != 5452415020494645
Installation finished. No error reported.

And then the upgraded Xubuntu was able to boot again.

The HDD on which the system is installed has a MBR partition table, is bootable in UEFI and there is no Windows on this disk. I believe this combination was not well handled in the upgrade and ended leaving it in a unbootable state.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.17
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: XFCE
Date: Fri Apr 27 16:59:27 2018
InstallationDate: Installed on 2017-07-24 (277 days ago)
InstallationMedia: Xubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to bionic on 2018-04-27 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Ed Broadley (rebroad+ubuntu)]

I just raised a bug (https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1947121) which might be similar to this one.