Installer crashed when trying to install Ubuntu 18.04 [duplicate]
Solution 1:
Check out Ubuntu 18.04 Installer crashes on Dell XPS 15 9560. To summarize: You are experiencing Bug #1751252.
There are two options to fix this:
Option 1: Install a newer fixed version of ubiquity
Boot your 18.04 Live ISO Select Try Ubuntu Before you start the Ubiquity installer, open a Terminal window (CTRL-ALT-T) Execute the following commands in the terminal to upgrade Ubiquity:
sudo apt update
sudo apt install ubiquity
Then start Ubiquity from the desktop.
Option 2: Apply a patch to ubiquity
Boot your 18.04 Live ISO Select Try Ubuntu Before you start the Ubiquity installer, open a Terminal window (CTRL-ALT-T) Execute the following commands in the Terminal to download and apply the patch:
cd ~/Downloads
wget https://code.launchpad.net/~azzar1/ubiquity/+git/ubiquity/+merge/345056/+preview-diff/831305/+files/preview.diff --output-document ubiquity.patch
sudo cp /usr/lib/ubiquity/ubiquity/misc.py /usr/lib/ubiquity/ubiquity/misc.py.original
sudo patch /usr/lib/ubiquity/ubiquity/misc.py ubiquity.patch
Start the installer by clicking on the Ubiquity icon, and it should now allow you to proceed through the installation.
Note: this is just an edited version of the first answer from the link I gave.
Check out the link for more answers