No Matter now. Thank you. 
I simpl complete installation without chosing no option and let the program start by itself and tell not to do download updates during installation. 
Now installation is complete, system works and tomorrow i do all the updates and let you know. 
Thanks for support. Bye !

> Il 04/10/2020 21:57 Curtis Schroeder <email address hidden> ha scritto:
> 
>  
> Well, I see the 20.04.1 live image still has a problem installing
> (NVIDIA?) drivers during the initial install that was in the original
> 20.04 release. I shall try again without the drivers install option. I
> was trying a minimal clean install this time if that makes any
> difference for the analysis.
> 
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1871268
> 
> Title:
>   Installation fails when  "Install Third-Party Drivers" is selected
> 
> Status in GLibC:
>   New
> Status in Ubuntu CD Images:
>   Fix Released
> Status in apt package in Ubuntu:
>   Confirmed
> Status in glibc package in Ubuntu:
>   Invalid
> Status in apt source package in Bionic:
>   Confirmed
> Status in glibc source package in Bionic:
>   Fix Released
> Status in apt source package in Focal:
>   Confirmed
> Status in glibc source package in Focal:
>   Invalid
> 
> Bug description:
>   Please use the latest daily installer images if you would like to enable third-party drivers during installation:
>   http://www.cdimage.ubuntu.com/focal/daily-live/current/
> 
>   [Original Bug Text]
> 
>   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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