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

[Nilio Gomes]

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)

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "partman" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

[Nilio Gomes (nilio1324)]

13/August/2021 - The problem was solved. The problem was not the UBUNTU or the disk, the problem was an error in my RAM, it was showing errors. I changed RAM and the UBUNTU 20.04 installation and execution process went without any more error messages as before.

[Paul White (paulw2u)]

Further to comment #3, closing as not a bug in Ubuntu.