[Bug 1894860] Re: Boot fails with newer kernel

[Eugen]

it has nothing to do with the installation media - the system was setup
with 1910 and upgraded to 2004 - was running fine ever since, the
problem is with the mentioned kernels: not booting, no real error
message

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https://bugs.launchpad.net/bugs/1894860

Title:
  Boot fails with newer kernel

Status in ubiquity package in Ubuntu:
  Incomplete

Bug description:
  I get a
  "cryptsetup: Waiting for encrypted source device UUID=<UID>"

  message when trying to boot with kernels 5.4.0-47 and 5.4.0.-45
  and then nothing happens

  pressing ESC displays
  "Volume group "vgubuntu" not found
  Cannot process volume group vgubuntu"

  System was dm-crypt/LUKS encrypted at installation

  kernel 5.4.0-42 still works

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
  Uname: Linux 5.4.0-42-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.8
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: GNOME
  Date: Tue Sep  8 16:41:34 2020
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed only-ubiquity quiet splash nomodeset ---
  InstallationDate: Installed on 2019-10-18 (326 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  Symptom: installation
  UpgradeStatus: Upgraded to focal on 2020-04-27 (134 days ago)

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