[Bug 1972282] [NEW] package casper 1.465 failed to install/upgrade: trying to overwrite '/usr/share/initramfs-tools/scripts/casper-premount/20iso_scan', which is also in package lupin-casper 0.57build1

[Russ McGinn]

Public bug reported:

Preparing to unpack .../casper_1.470_amd64.deb ...
Unpacking casper (1.470) over (1.465) ...
dpkg: error processing archive /var/cache/apt/archives/casper_1.470_amd64.deb (--unpack):
 trying to overwrite '/usr/share/initramfs-tools/scripts/casper-premount/20iso_scan', which is also in package lupin-casper 0.57build1
update-initramfs: deferring update (trigger activated)
Errors were encountered while processing:
 /var/cache/apt/archives/casper_1.470_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 22.04
Package: casper 1.465
ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
Uname: Linux 5.15.0-27-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82
AptOrdering:
 casper:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Mon May  9 12:33:39 2022
DpkgTerminalLog:
 Preparing to unpack .../casper_1.470_amd64.deb ...
 Unpacking casper (1.470) over (1.465) ...
 dpkg: error processing archive /var/cache/apt/archives/casper_1.470_amd64.deb (--unpack):
  trying to overwrite '/usr/share/initramfs-tools/scripts/casper-premount/20iso_scan', which is also in package lupin-casper 0.57build1
ErrorMessage: trying to overwrite '/usr/share/initramfs-tools/scripts/casper-premount/20iso_scan', which is also in package lupin-casper 0.57build1
Python3Details: /usr/bin/python3.10, Python 3.10.4, python3-minimal, 3.10.4-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.21.1ubuntu2
 apt  2.4.5
SourcePackage: casper
Title: package casper 1.465 failed to install/upgrade: trying to overwrite '/usr/share/initramfs-tools/scripts/casper-premount/20iso_scan', which is also in package lupin-casper 0.57build1
UpgradeStatus: Upgraded to jammy on 2022-05-01 (8 days ago)
modified.conffile..etc.casper.conf: [deleted]

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


** Tags: amd64 apport-package jammy

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https://bugs.launchpad.net/bugs/1972282

Title:
  package casper 1.465 failed to install/upgrade: trying to overwrite
  '/usr/share/initramfs-tools/scripts/casper-premount/20iso_scan', which
  is also in package lupin-casper 0.57build1

Status in casper package in Ubuntu:
  New

Bug description:
  Preparing to unpack .../casper_1.470_amd64.deb ...
  Unpacking casper (1.470) over (1.465) ...
  dpkg: error processing archive /var/cache/apt/archives/casper_1.470_amd64.deb (--unpack):
   trying to overwrite '/usr/share/initramfs-tools/scripts/casper-premount/20iso_scan', which is also in package lupin-casper 0.57build1
  update-initramfs: deferring update (trigger activated)
  Errors were encountered while processing:
   /var/cache/apt/archives/casper_1.470_amd64.deb
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  ProblemType: Package
  DistroRelease: Ubuntu 22.04
  Package: casper 1.465
  ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
  Uname: Linux 5.15.0-27-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu82
  AptOrdering:
   casper:amd64: Install
   NULL: ConfigurePending
  Architecture: amd64
  CasperMD5CheckResult: unknown
  Date: Mon May  9 12:33:39 2022
  DpkgTerminalLog:
   Preparing to unpack .../casper_1.470_amd64.deb ...
   Unpacking casper (1.470) over (1.465) ...
   dpkg: error processing archive /var/cache/apt/archives/casper_1.470_amd64.deb (--unpack):
    trying to overwrite '/usr/share/initramfs-tools/scripts/casper-premount/20iso_scan', which is also in package lupin-casper 0.57build1
  ErrorMessage: trying to overwrite '/usr/share/initramfs-tools/scripts/casper-premount/20iso_scan', which is also in package lupin-casper 0.57build1
  Python3Details: /usr/bin/python3.10, Python 3.10.4, python3-minimal, 3.10.4-0ubuntu2
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.21.1ubuntu2
   apt  2.4.5
  SourcePackage: casper
  Title: package casper 1.465 failed to install/upgrade: trying to overwrite '/usr/share/initramfs-tools/scripts/casper-premount/20iso_scan', which is also in package lupin-casper 0.57build1
  UpgradeStatus: Upgraded to jammy on 2022-05-01 (8 days ago)
  modified.conffile..etc.casper.conf: [deleted]

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