[Bug 1731870] Re: Failed to start Cryptography Setup for cryptswap1

[Antti K]

Me too having this issue; on MSI GV62 7RE with i7-7700HQ, 8GB RAM, GTX
1050 ti, Crucial SSD (275GB M.2 SATA) + 1 TB rotating HD.

Problem occurred after installation of Nvidia drivers (propably 384),
after that the boot stuck in a loop, alternating black and the boot log
shown in attachment.

Previously booted to Ubuntu 17.10, but 3D graphics seemed to be out on
vanilla Nouveau (e.g. OpenArena crashed upon game start)

** Attachment added: "Screenshot of Cryptswap failure."
   https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/1731870/+attachment/5023918/+files/IMG_20171216_103232_336.jpg

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https://bugs.launchpad.net/bugs/1731870

Title:
  Failed to start Cryptography Setup for cryptswap1

Status in cryptsetup package in Ubuntu:
  Confirmed

Bug description:
  Fresh install of 17.10.  On first boot, after install, there were no
  issues; the desktop booted fine.  I then ran an `apt upgrade`, set my
  home encryption passphrase and rebooted.  Now, after typing my
  password, rather than Gnome starting, I get systemd errors:

  Failed to start Cryptography Setup for cryptswap1
  Dependency failed for dev-mapper-cryptswap1.device
  Dependency failed for /dev/mapper/cryptswap1

  If I wait long enough, I get the gdm3 login window again.  If I try to
  log in after this, I get the Gnome desktop without any issue.

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