I am working on a huge project and just now started having issues. I had just installed Kali 2018.4 and last night I performed an update and upgrade. Everything went well from what I could tell. The only hiccup was that towards the very end of the upgrade my phone died (I was tethered since getting Kali to connect to the companies wifi, which uses PEAP authentication proved to be quite difficult to configure). However, once I got my phone back up, I was able to get the upgrade to continue and everything seemed to go fine from that point on as well.

I let everything unpack over night and other than getting a message to install/upgrade Postgresql from v10 to v11, everything seemed to be going quite well. I decided I was going to configure the pi to autoboot into the root account.

lightdm.conf

Code:
autologin-user=root
autologin-user-timeout=0
What I didn't do yet was:
Code:
cd /etc/pam.d
nano lightdm-autologin

For some reason, I thought "Since the big upgrade, I should reboot before I get to far ahead of myself" (before I did the second set of commands shown above). I don't believe that the file edit did anything, though I suppose it could, but rather feel that it was something in the upgrade that is the reason for the black screen. When I power on the Pi, I see the colored rainbow screen, and then all of the scrolling text, but after that is finished the screen goes black rather than showing the login. I really don't want to completely start over. Is there a way to interrupt the loading process to open a command prompt to, at the very least, change the edits I did in the lightdm.conf file, if not somehow correct this issue? Is there anything I can do?

Thank you