After installing Windows 7 on my Laptop normally running Ubuntu 18.04 LTS, I couldn't boot Ubuntu anymore. GRUB didn't show up on boot and Windows directly started.
After using the Boot Repair tool, the GRUB menu shows up again, but if I try to boot Ubuntu normally, the screen stays black with a blinking cursor in the top left corner.
Booting Ubuntu in recovery mode got stuck always at the same point:
loading some drivers, I guess? here I discovered that, if I wait long enough (>5 mins), another prompt appears:
press enter to boot the system When Pressing Enter, the recovery mode menu does indeed appear.
Interstingly, If I now hit Ctrl+c, ubuntu boots and I can login to my user account BUT with neither WiFi nor USB working.
On a wired network connection it seems to work somehow (but not for everything, Firefox, for example, couldn't load any website) and I was able to run
sudo apt-get update and
sudo apt-get upgrade where it seemed to be able to connect to the servers but didn't change the situation at all.
After reading through this Guy's post who seems to have had a very similar problem, I got the following output for
sudo systemctl status systemd-modules-load.service:
many red lines Too many red lines for my taste, unfortunately, I'm too inexperienced to get what it wants to tell me. Unfortunately, the answer that helped the guy who posted the question above didn't have any healing effect on my system.
This is where I am right now. The simplest thing to do probably would be to reinstall Ubuntu, but I really would like to avoid all the setting-up-new-system stuff. Any Ideas how I can get my Ubuntu installation to boot normally again (with WiFi and USB working)?
Thanks for any advice in advance!