[Bug 1939610] [NEW] I'm trying to install the OS and all the time it crasch.

[Nilio Gomes]

Public bug reported:

I've tried installing UBUNTU 20.04 several times, but it always crashes the computer after the message: "the following file does not match the original file on the CD/DVD".
Note: This micro is the same one that until the other day had this same UBUNTU 20.04 installed and running normally, it's even the same disk, I decided to reinstall to clean the environment.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubiquity 20.04.15.10
ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-43-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.445.1
Date: Wed Aug 11 15:15:06 2021
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash nomodeset ---
LiveMediaBuild: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

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


** Tags: amd64 apport-bug focal ubiquity-20.04.15.10 ubuntu

** Patch added: "partman"
   https://bugs.launchpad.net/bugs/1939610/+attachment/5517350/+files/partman

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https://bugs.launchpad.net/bugs/1939610

Title:
  I'm trying to install the OS and all the time it crasch.

Status in ubiquity package in Ubuntu:
  New

Bug description:
  I've tried installing UBUNTU 20.04 several times, but it always crashes the computer after the message: "the following file does not match the original file on the CD/DVD".
  Note: This micro is the same one that until the other day had this same UBUNTU 20.04 installed and running normally, it's even the same disk, I decided to reinstall to clean the environment.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: ubiquity 20.04.15.10
  ProcVersionSignature: Ubuntu 5.8.0-43.49~20.04.1-generic 5.8.18
  Uname: Linux 5.8.0-43-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.11-0ubuntu27.16
  Architecture: amd64
  CasperMD5CheckResult: pass
  CasperVersion: 1.445.1
  Date: Wed Aug 11 15:15:06 2021
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash nomodeset ---
  LiveMediaBuild: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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