Tuesday, January 30, 2018

grub2 - Ubuntu 14.04.3 screen shuts down after boot. Problem with NVIDIA. How to set NOMODESET from GRUB

I have ubuntu 14.04.3 installed on my new machine equipped with an nvidia geforce 970.


Not to mention the pains I had in installing nvidia.352, last night I made a simple update and shut down. However, this morning I had the black screen login page instead of the graphical. There was a problem with nvidia I figured. So I tried to downgrade to an older version. It didn't help. Last thing I did was to purge nvidia. After reboot, however, this time I don't even get the black login page. Instead, the screen shuts down and there is nothing I can do.


I tried with recovery mode through GRUB. However, no matter which one of the options I choose, I always get the same problem. The screen shuts down and I have to reboot manually. So no terminal, no login, just the system boot settings.


After a fair amount of search, I found out that there is an issue with a concept called nomodeset which has to be set through grub. As this link suggests, I searched for the line starting with linux and ending with quiet splash to add nomodeset there. However, what I have is this:


linux   /boot/vmlinuz-3.19.0-33-generic root=UUID=f40f49f8-a44b-4709-b79b-0873ca3c3b72 ro /

So there is no quiet splash to add nomodeset to. However, if I anyway try to add either nomodeset or nomodeset quiet splash in the end of the line and then reboot, it halts and I need to reboot manually.


So my question is: Is there anyway that I can have at least an access to a terminal by modifying GRUB?


At this moment I need to have a terminal to try to recover my files if possible and then maybe install nvidi again.

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