Installer Stopped with the Error number 5 : error copying files :/ Is is possible to manually copy the files? And or how to further debug the issue?

[Thorsten Niehues]

I downloaded Ubuntu 18.04.1
Created a bootable USB Stick with Rufus (MBR UEFI or BIOS?)
Booted - Try ubuntu -
after boot: Install ubuntu
Then the installer stops with error number 5 ... error copying files ... faulty CD/DVD ...
Unfortunately I do not know how to further debug the isse.
I would like to give more information

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.14.6
ProcVersionSignature: Ubuntu 4.15.0-29.31-generic 4.15.18
Uname: Linux 4.15.0-29-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CasperVersion: 1.394
Date: Sat Aug 18 14:19:47 2018
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Phillip Susi (psusi)]

Your installation medium is corrupt; you will need to recreate it and may want to verify it using the check disc option at the grub menu.

[Thorsten Niehues (thorsten-niehues)]

This was my first idea too. I did the following:

Download Ubuntu 18.04 - error as described.

So I found this bug: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1771059
and downloaded the daily ISO with the same error.

Then i found Ubuntu 18.04.01 with the same error.

So I verified the ISO as described on the Ubuntu page.
After that I check the MD5 sums on the USB stick to verify the USB-Stick is not the issue.

Same Problem / Error.

After a BIOS update and changing the partitions from SWAP, EXT4 -> EXT4, SWAP
(so EXT4 root partition is on sectors with lower number on the SDD)
the installation went fine.

So I assume it was either the BIOS update OR
a bad sector on the SSD.

How to further investigate this issue?