No GUI on Ubuntu 18.04 after reinstalling

Question

I just reinstalled Ubuntu using Resetter. But when my desktop rebooted, there was no GUI. I used the command: sudo apt-get install ubuntu-desktop Some packages were installed, but then it shows two errors: hash sum mismatch and unable to fetch some archives, run apt-get update or try with --fix-missing. I'm new to Ubuntu. How can I get a gnome on my desktop?

Answer 1

Update, fix packages dependencies, upgrade:

sudo apt clean && sudo apt update && sudo apt install -f && sudo apt upgrade

You could also try to install gdm3 or lightdm display managers and switch to them:

sudo dpkg-reconfigure gdm3

or

sudo dpkg-reconfigure lightdm

Then you could also try to start or restart them by:

sudo systemctl start gdm3

Display manager is responsible for gnome session launching in your case.