[Bug 1802617] Re: After upgrade to 18.10 boot fails on waiting for encrypted source device

[Donald Pellegrino]

Candidate Work-around:

For the case of disabling swap, I was able to eliminate the boot-time
error with the following actions:

Remove swap line from /etc/fstab
Remove swap line from /etc/crypttab
Remove /swapfile
apt purge cryptsetup
apt autoremove (clean up cryptsetup dependencies)

The updates to /etc/fstab and /etc/crypttab were not enough to eliminate
the error message at boot. It seems cryptsetup was still doing something
in the boot sequence that caused it to try and create an encrypted swap
file. Purging the cryptsetup package was necessary to eliminate the
error message. Therefore, this issue may be relevant to both the Ubuntu
upgrade process and the cryptsetup package.

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https://bugs.launchpad.net/bugs/1802617

Title:
  After upgrade to 18.10 boot fails on waiting for encrypted source
  device

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

Bug description:
  After upgrading from 18.04.1 LTS to 18.10, all reboots of the system
  give a boot screen with the error:

  "cryptsetup: Waiting for encrypted source device /swapfile..."

  After a minute or so, the graphical boot screen with that message is
  replaced with a console screen reading:

  "ALERT! encrypted source device /swapfile does not exist, can't unlock cryptswap1.
  Check cryptopts=source= bootarg: cat /proc/cmdline
  or missing modules, devices: cat /proc/modules; ls /dev

  Dropping to a shell

  BusyBox v1.27.2 (Ubuntu 1:1.27.2-2ubuntu4) built-in shell (ash)
  Enter 'help' for a list of built-in commands.

  (initramfs) _"

  Typing exit at the initramfs prompt gets the boot to continue. The
  boot continues to a working system and graphical login.

  The system was configured in 18.04.1 LTS to have encrypted home
  directories and no swap file.

  It looks like the /etc/fstab got a new swapfile line somewhere during
  the upgrade process. However, commenting that out and rebooting does
  not affect this issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: ubuntu-release-upgrader-core 1:18.10.11.1
  ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12
  Uname: Linux 4.18.0-10-generic x86_64
  ApportVersion: 2.20.10-0ubuntu13
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: GNOME
  Date: Fri Nov  9 20:22:09 2018
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2017-08-12 (454 days ago)
  InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  Symptom: dist-upgrade
  UpgradeStatus: Upgraded to cosmic on 2018-11-09 (0 days ago)
  VarLogDistupgradeTermlog:

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