Not able to install ubuntu 18.04 :-(. Crash on installing. Please respond ASAP.

[vikas gola]

Not able to install ubuntu 18.04 :-(.
At first and second time, it crashes at starting point of installing step.
After that at third time it at-least start installing ubuntu 18. But grub installing part crash.

Please respond ASAP.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubiquity 18.04.14
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CasperVersion: 1.394
Date: Sat Apr 28 03:24:17 2018
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash ---
LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: grub-installer
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Wil Tetz (cwilgo)]

I'm experiencing this same problem. I can't install Ubuntu 18.04 or Kubuntu 18.04. The installer crashes, or reports that grub cannot be installed and then crashes.

[Xinyang Yu (barryyu)]

Same here. I’m using hardware. I’ll try it in VM later

[quaoarian (herman-beeksma)]

Same problem. The installer crashes at random points during installation.

[Xinyang Yu (barryyu)]

Look like it might have something to do with UEFI? I am running on a Dell system.
Possible duplicate of Bug #1765562 and Bug #1753134?

[vikas gola (vikasgola)]

I think it is not related to UEFI...
It is related to GPT disk type.

Beacuse my friend installed in uefi mode but it doesn't have gpt disk type. The one another reason of this bug to relate to GPT beacuse installer crashing in my virtual machine too(which also have gpt).

[dino99 (9d9)]

Installing problem with gpt disk is well known and discussed:

https://duckduckgo.com/?q=ubuntu+install+gpt+disk&t=canonical&ia=qa

[Kevin Raaijmakers (kraaijmakers)]

Found out for me, that if GNOME uses scaling 200% the installer crashed at loading of the images which say Welcome to Ubuntu, etc. Try using a 100% DISPLAY scaling and no issues during installing.

I hope this info helps someone.

[Kai Oezer (kaibo)]

Thank you, Kevin. It helped.

I can confirm that the display scale setting "200%" causes a crash in ubiquity. I have a 4K display. The first thing I do after Ubuntu boots from Live USB is to adjust the scale factor to 200%. The installer crashed at every attempt. It worked only after I left the scale at 100%.

[Stefan (boldos)]

Ummm... => the X.org powered 18.04 does not support fractional display scaling?
Or am I missing anything?

[Art Williams (ivanwolf)]

Running into the same problem with both Ubuntu and Kubuntu on an older HP 8200 Elite SFF. Core i5 2400 box. Have set the blank SSD to IDE and ACHI mode, used defaults in Rufus to create the USB stick for installation. The display that is attached is a 1080p screen. So, I don't think it is a scaling issue, which shouldn't affect GRUB installation anyway. Thoughts on what I can change in the UEFI on the box?