[Bug 1555237] Re: Upgrade from 14.04.4→ 16.04 dies midway taking out the session.

[Will Cooke]

Ignore comment 4.
I had an active shell via SSH still but when I tried to reboot the box it froze.  When I reset the machine and try to boot I now have a kernel panic.

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https://bugs.launchpad.net/bugs/1555237

Title:
  Upgrade from 14.04.4→ 16.04 dies midway taking out the session.

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  STEPS:
  1. Install 14.04.4 on a uefi securebooted system
  2. update it
  3. Install openssh-server for debug access
  4. reboot
  5. Hit alt+f2
  6. Type update-manager -d and hit enter

  EXPECTED:
  I expected a smooth transition to 16.04

  ACTUAL:
  System is completely taken out mid way through the process killing the session and x also no tty when hitting ctrl+alt+f1-6

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-release-upgrader-core 1:0.220.8
  ProcVersionSignature: Ubuntu 4.2.0-30.36~14.04.1-generic 4.2.8-ckt3
  Uname: Linux 4.2.0-30-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.19
  Architecture: amd64
  CrashDB: ubuntu
  Date: Wed Mar  9 17:01:27 2016
  InstallationDate: Installed on 2016-03-04 (5 days ago)
  InstallationMedia: Ubuntu 14.04.4 LTS "Trusty Tahr" - Beta amd64 (20160224)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to xenial on 2016-03-09 (0 days ago)
  VarLogDistupgradeTermlog:

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