[Bug 2051478] [NEW] unlock passphrase doesn't work in plymouth but works in recovery mode

[Nobuto Murata]

Public bug reported:

The system suddenly stopped accepting the existing passphrase on boot.
However, the passphrase is definitely correct since the same one can be
used in the recovery mode and it unlocks the volume appropriately.

I'm not sure which recent update brought this behavior.

Last successful graphical boot: 2024-01-28 00:43:09 +0900

Fwiw, the existing passphrase was long enough and contains some special
characters such as "!". The confusing part is shorter passphrase but
with "!" seems to work.

WORKAROUND:
1. boot into the recovery mode
2. unlock the volume in the console
3. add a new key with `cryptsetup luksAddKey /dev/nvme0n1p3`
3. reboot

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: cryptsetup 2:2.6.1-6ubuntu1
ProcVersionSignature: Ubuntu 6.6.0-14.14-generic 6.6.3
Uname: Linux 6.6.0-14-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.27.0-0ubuntu6
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Mon Jan 29 15:41:03 2024
InstallationDate: Installed on 2024-01-08 (21 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily amd64 (20240104)
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: cryptsetup
UpgradeStatus: No upgrade log present (probably fresh install)
cmdline: BOOT_IMAGE=/vmlinuz-6.6.0-14-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash
crypttab: dm_crypt-0 UUID=cfd8c295-9988-4934-a91a-460a9d16d80f none luks

** Affects: cryptsetup (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug noble

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https://bugs.launchpad.net/bugs/2051478

Title:
  unlock passphrase doesn't work in plymouth but works in recovery mode

Status in cryptsetup package in Ubuntu:
  New

Bug description:
  The system suddenly stopped accepting the existing passphrase on boot.
  However, the passphrase is definitely correct since the same one can
  be used in the recovery mode and it unlocks the volume appropriately.

  I'm not sure which recent update brought this behavior.

  Last successful graphical boot: 2024-01-28 00:43:09 +0900

  Fwiw, the existing passphrase was long enough and contains some
  special characters such as "!". The confusing part is shorter
  passphrase but with "!" seems to work.

  WORKAROUND:
  1. boot into the recovery mode
  2. unlock the volume in the console
  3. add a new key with `cryptsetup luksAddKey /dev/nvme0n1p3`
  3. reboot

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: cryptsetup 2:2.6.1-6ubuntu1
  ProcVersionSignature: Ubuntu 6.6.0-14.14-generic 6.6.3
  Uname: Linux 6.6.0-14-generic x86_64
  NonfreeKernelModules: zfs
  ApportVersion: 2.27.0-0ubuntu6
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Jan 29 15:41:03 2024
  InstallationDate: Installed on 2024-01-08 (21 days ago)
  InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Daily amd64 (20240104)
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: cryptsetup
  UpgradeStatus: No upgrade log present (probably fresh install)
  cmdline: BOOT_IMAGE=/vmlinuz-6.6.0-14-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash
  crypttab: dm_crypt-0 UUID=cfd8c295-9988-4934-a91a-460a9d16d80f none luks

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