[Bug 1765724] Re: Xenial -> Bionic - System fails to boot after upgrade - systemd-cryptsetup at cryptswap1.service fails to start

[Ian Hodgson]

I am finding something possibly related (as are a few that have posted
on Reddit). After update I can boot but I get 'welcome to ubuntu' screen
and everything freezes. I can press enter to get through the welcome
wizard but after that nothing works except the mouse pointer. Boring
into Wayland doesn't work either. I can Alt F3 and login to a terminal.
Could someone advise me what to do from here so I can provide a log.

Ian

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Title:
  Xenial -> Bionic - System fails to boot after upgrade - systemd-
  cryptsetup at cryptswap1.service fails to start

Status in cryptsetup package in Ubuntu:
  New
Status in systemd package in Ubuntu:
  New

Bug description:
  Test Case:
  1. Install Xenial Desktop with encrypted home
  2. Upgrade to bionic
  3. Reboot

  Actual Result
  The system hangs on boot when it activates the encrypted swap. There are the following entries in the journal:
  $ journalctl -b-1 -o short-monotonic |grep crypt
  [    1.535326] ubuntu kernel: Key type encrypted registered
  [  125.637205] ubuntu systemd[1]: Dependency failed for Cryptography Setup for cryptswap1.
  [  125.637789] ubuntu systemd[1]: Dependency failed for dev-mapper-cryptswap1.device.
  [  125.638311] ubuntu systemd[1]: Dependency failed for /dev/mapper/cryptswap1.
  [  125.639351] ubuntu systemd[1]: dev-mapper-cryptswap1.swap: Job dev-mapper-cryptswap1.swap/start failed with result 'dependency'.
  [  125.639478] ubuntu systemd[1]: dev-mapper-cryptswap1.device: Job dev-mapper-cryptswap1.device/start failed with result 'dependency'.
  [  125.639594] ubuntu systemd[1]: Dependency failed for Local Encrypted Volumes.
  [  125.640128] ubuntu systemd[1]: cryptsetup.target: Job cryptsetup.target/start failed with result 'dependency'.
  [  125.640266] ubuntu systemd[1]: systemd-cryptsetup at cryptswap1.service: Job systemd-cryptsetup at cryptswap1.service/start failed with result 'dependency'.
  [  383.902153] ubuntu systemd[1]: Starting Cryptography Setup for cryptswap1...
  [  383.913899] ubuntu systemd-cryptsetup[672]: Set cipher aes, mode xts-plain64, key size 256 bits for device /dev/disk/by-uuid/34ea85fd-854b-4892-95b9-7073dd2dbf7b.
  [  384.138596] ubuntu systemd[1]: Started Cryptography Setup for cryptswap1.
  [  384.143845] ubuntu systemd[1]: Reached target Local Encrypted Volumes.
  [  384.167475] ubuntu systemd[1]: Found device /dev/mapper/cryptswap1.
  [  384.171327] ubuntu systemd[1]: Activating swap /dev/mapper/cryptswap1...
  [  384.184639] ubuntu kernel: Adding 2093564k swap on /dev/mapper/cryptswap1.  Priority:-2 extents:1 across:2093564k FS
  [  384.191435] ubuntu systemd[1]: Activated swap /dev/mapper/cryptswap1.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: cryptsetup 2:2.0.2-1ubuntu1
  ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
  Uname: Linux 4.15.0-15-generic x86_64
  ApportVersion: 2.20.9-0ubuntu5
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Apr 20 15:56:52 2018
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2018-04-18 (2 days ago)
  InstallationMedia: Ubuntu 16.04.4 LTS "Xenial Xerus" - Release amd64 (20180228)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  SourcePackage: cryptsetup
  UpgradeStatus: Upgraded to bionic on 2018-04-20 (0 days ago)
  cmdline: BOOT_IMAGE=/boot/vmlinuz-4.15.0-15-generic root=UUID=ba774fed-a987-4070-9571-0e4790b08680 ro recovery nomodeset
  crypttab: cryptswap1 UUID=34ea85fd-854b-4892-95b9-7073dd2dbf7b /dev/urandom swap,offset=1024,cipher=aes-xts-plain64

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