installer error after finishing partition layout setting screen

[Johannes Unger]

In my setup (MSI-16L2 "GT62VR 6RD") with one SSD and one HDD I tried to install ubuntu on a partition in the middle of the 1TB HDD. Selected to install bootloader there because I didn't know what it should mean in uEFI mode and maybe the recovery bootloader was placed there somewhere in the other partitions or /dev/sdb directly.
(Additionally, not everything was visible at any time because the display resolution is limited to 800x600 even though it is a 1920x1080 display - nVidia-powered gsync)
What happened: got an error message from ubiquity installer about an IO error and that I should check the installation media, then was asked to report the error
Expected: installation should have continued.

ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: ubiquity 16.10.14
ProcVersionSignature: Ubuntu 4.8.0-22.24-generic 4.8.0
Uname: Linux 4.8.0-22-generic x86_64
ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
CasperVersion: 1.379
Date: Thu Jan 26 23:59:27 2017
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper quiet locale=de_AT ---
LiveMediaBuild: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2)
ProcEnviron:
 TERM=unknown
 PATH=(custom, no user)
 LANG=de_AT.UTF-8
 SHELL=/bin/bash
 LC_NUMERIC=C.UTF-8
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Reviewing your log files attached to this bug report it seems that there is a problem with your installation media (CD/DVD). You can verify the integrity of the Ubuntu ISO files you downloaded by following the instructions at https://help.ubuntu.com/community/HowToMD5SUM. You might also retry your installation with new media. In the event that is is not in fact an error with your installation media please set the bug's status back to New. Thanks and good luck!

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Johannes Unger (ju93)]

There were errors in filesystem.squashfs indeed.
Sadly, skipping these 3 files without restarting live session was not possible
(so I downloaded a new image over night using bitTorrent to prevent from undiscovered download errors and to not have to download over and over again - connection slower than 2176 kbps / many DSL low-level errors and no clue about rsync).
This bug may be closed. I wouldn't have posted here if I wasn't asked to do so after a crash _right after_ ubiquity installer showed an error message about corrupted installation media.

[Launchpad Janitor (janitor)]

[Expired for ubiquity (Ubuntu) because there has been no activity for 60 days.]