[Bug 1638437] Re: package initramfs-tools 0.122ubuntu8.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Benjamin Drung]

** Description changed:

  failure during update and seem to have led to a complete system crash
  before or was from after a complete system crash which also had failures
- during update
+ during update. The relevant dpkg terminal log says:
+ 
+ ```
+ Setting up initramfs-tools (0.122ubuntu8.1) ...
+ update-initramfs: deferring update (trigger activated)
+ cp: cannot create regular file '/cdrom/casper/initrd.gz.new': No such file or directory
+ dpkg: error processing package initramfs-tools (--configure):
+  subprocess installed post-installation script returned error exit status 1
+ ```
  
  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: initramfs-tools 0.122ubuntu8.1
  ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
  Uname: Linux 4.4.0-31-generic i686
  NonfreeKernelModules: wl
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: i386
  Date: Wed Nov  2 03:11:24 2016
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  PackageArchitecture: all
  RelatedPackageVersions:
-  dpkg 1.18.4ubuntu1.1
-  apt  1.2.12~ubuntu16.04.1
+  dpkg 1.18.4ubuntu1.1
+  apt  1.2.12~ubuntu16.04.1
  SourcePackage: initramfs-tools
  Title: package initramfs-tools 0.122ubuntu8.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

** Summary changed:

- package initramfs-tools 0.122ubuntu8.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
+ update-initramfs fails with cp: cannot create regular file '/cdrom/casper/initrd.gz.new': No such file or directory

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https://bugs.launchpad.net/bugs/1638437

Title:
  update-initramfs fails with cp: cannot create regular file
  '/cdrom/casper/initrd.gz.new': No such file or directory

Status in initramfs-tools package in Ubuntu:
  Confirmed

Bug description:
  failure during update and seem to have led to a complete system crash
  before or was from after a complete system crash which also had
  failures during update. The relevant dpkg terminal log says:

  ```
  Setting up initramfs-tools (0.122ubuntu8.1) ...
  update-initramfs: deferring update (trigger activated)
  cp: cannot create regular file '/cdrom/casper/initrd.gz.new': No such file or directory
  dpkg: error processing package initramfs-tools (--configure):
   subprocess installed post-installation script returned error exit status 1
  ```

  ProblemType: Package
  DistroRelease: Ubuntu 16.04
  Package: initramfs-tools 0.122ubuntu8.1
  ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
  Uname: Linux 4.4.0-31-generic i686
  NonfreeKernelModules: wl
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: i386
  Date: Wed Nov  2 03:11:24 2016
  ErrorMessage: subprocess installed post-installation script returned error exit status 1
  PackageArchitecture: all
  RelatedPackageVersions:
   dpkg 1.18.4ubuntu1.1
   apt  1.2.12~ubuntu16.04.1
  SourcePackage: initramfs-tools
  Title: package initramfs-tools 0.122ubuntu8.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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