[Bug 1871268] Re: Installation fails with Could not configure 'libc6:i386'. , E:Could not perform immediate configuration on 'libgcc-s1:i386'

[Stewart menday]

Just got this error, some further info,

GFX card - Nvidia Titan RTX
CPU - i9-10900X
MB - ASRock x299 Gaming K6
Installed OS - Win10 and Ubuntu 18.04, both installed to separate M.2 drives 
Trying to install 20.04.01 to a 3rd M.2 drive

The install appears to be usable after the crash.
If you don't update drivers during install it will install without error. 
If you don't update drivers during install, the installed system is unusable due to no/crazy screen output.

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Title:
  Installation fails with Could not configure 'libc6:i386'. , E:Could
  not perform immediate configuration on 'libgcc-s1:i386'

Status in Ubuntu CD Images:
  Fix Released
Status in glibc package in Ubuntu:
  Invalid
Status in ubiquity package in Ubuntu:
  Invalid
Status in glibc source package in Focal:
  Invalid
Status in ubiquity source package in Focal:
  Invalid

Bug description:
  Test Case 
  1. Install Ubuntu Desktop on hardware with an nVidia card and select to install 3rd party drivers
  2. Proceed with installation

  
  The following error message is displayed in /var/log/syslog
  /plugininstall.py: Verifying downloads ...
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/g/gcc-defaults/gcc_9.3.0-1ubuntu2_amd64.deb: "Version: '9.3.0-1ubuntu2' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/libx/libxcrypt/libcrypt-dev_4.4.10-10ubuntu4_amd64.deb: "Version: '4.4.10-10ubuntu4' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/g/gcc-defaults/g++_9.3.0-1ubuntu2_amd64.deb: "Version: '9.3.0-1ubuntu2' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/z/zlib/zlib1g_1.2.11.dfsg-2ubuntu1_i386.deb: "Version: '1.2.11.dfsg-2ubuntu1' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/libx/libxau/libxau6_1.0.9-0ubuntu1_i386.deb: "Version: '1.0.9-0ubuntu1' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/libx/libxdmcp/libxdmcp6_1.1.3-0ubuntu1_i386.deb: "Version: '1.1.3-0ubuntu1' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/libx/libx11/libx11-6_1.6.9-2ubuntu1_i386.deb: "Version: '1.6.9-2ubuntu1' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/libx/libxext/libxext6_1.3.4-0ubuntu1_i386.deb: "Version: '1.3.4-0ubuntu1' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/l/lm-sensors/libsensors5_3.6.0-2ubuntu1_i386.deb: "Version: '3.6.0-2ubuntu1' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/libx/libx11/libx11-xcb1_1.6.9-2ubuntu1_i386.deb: "Version: '1.6.9-2ubuntu1' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/libx/libxdamage/libxdamage1_1.1.5-1_i386.deb: "Version: '1.1.5-1' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/libx/libxfixes/libxfixes3_5.0.3-1_i386.deb: "Version: '5.0.3-1' not found."
  /plugininstall.py: Failed to find package object for /cdrom//pool/main/libx/libxxf86vm/libxxf86vm1_1.1.4-1build1_i386.deb: "Version: '1.1.4-1build1' not found."
  /plugininstall.py: Downloads verified successfully
  ubiquity: Error in function: install
  /plugininstall.py: Exception during installation:
  /plugininstall.py: apt_pkg.Error: E:Could not configure 'libc6:i386'. , E:Could not perform immediate configuration on 'libgcc-s1:i386'. Please see man 5 apt.conf under APT::Immediate-Configure for details. (2)
  /plugininstall.py: 

  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.9
  ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
  Uname: Linux 5.4.0-21-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu22
  Architecture: amd64
  CasperVersion: 1.442
  Date: Mon Apr  6 20:17:07 2020
  InstallCmdLine: file=/cdrom/preseed/xubuntu.seed only-ubiquity initrd=/casper/initrd quiet splash ---
  LiveMediaBuild: Xubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
  ProcEnviron:
   LANGUAGE=es_EC.UTF-8
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=es_EC.UTF-8
   LC_NUMERIC=C.UTF-8
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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