How to Recover After Unsuccessful Upgrade to 18.04 From 17.10?

This is a long shot, but you could also try removing the graphics card and see if it will use your integrated graphics instead, assuming that the NVidia drivers are the culprit and this isn't on a laptop. Make sure you shut your computer off first and disconnect it from power

I just tried to upgrade to 18.04 from 17.10 and experienced a catostrophic failure.

First, to try to upgrade I just enabled upgrade from the "Software Updater".

Upon a reboot after upgrading I get the message:

A start job is running for Hold until boot process finishes up.

Following this answer I uninstalled everything nVidia related from the root command prompt. That fixed that issue.

However, then all I see is the message dev/sda1: clean and some information about blocks after boot.

This answer said that the solution for that was also to uninstall nVidia stuff. But since I did that, I tried (from the root command prompt) apt-get install ubunutu-desktop however nothing changed on boot and I am still stuck at that screen.

Also, I have very limited support for apt-get install anything because I always get a temporary dns failure error using apt.

Is there anything I can do to get past this? This is rough.

·OTHER ANSWER:

I just tried to upgrade to 18.04 from 17.10 and experienced a catostrophic failure.

First, to try to upgrade I just enabled upgrade from the "Software Updater".

Upon a reboot after upgrading I get the message:

A start job is running for Hold until boot process finishes up.

Following this answer I uninstalled everything nVidia related from the root command prompt. That fixed that issue.

However, then all I see is the message dev/sda1: clean and some information about blocks after boot.

This answer said that the solution for that was also to uninstall nVidia stuff. But since I did that, I tried (from the root command prompt) apt-get install ubunutu-desktop however nothing changed on boot and I am still stuck at that screen.

Also, I have very limited support for apt-get install anything because I always get a temporary dns failure error using apt.

Is there anything I can do to get past this? This is rough.