why are you not using the nginx package from the official Debian repository?
When I installed nginx, I didn't realize there was a ngnix package in the official Debian repository,
The log also shows that at least the last three update attempts failed due to that package maybe more. So none of those packages were upgraded! How did you try the updates?
It did tell me they had failed, (the update manager, or notice) , A pop up window, automatically, popped up, and it said, " There are 37 updates available", so I accepted, and it downloaded,installed the up dates. I saw where it showed the ngnix had failed, but never imagined it would effect the desktop ( I guess gnome or gdm3 ? ) from starting. It did tell me also I would need to re-boot after the updates, so I did, and when I did, it boots, but when it gets to where the "desktop" I guess you would call it should load, it never loads, just a little blinking white square.
I wonder , if I try to un-install ngnix ? But this leads to another problem, now the way it is, I can not go online from the terminal, at least I don't know anyway to. Do I need to have a internet conncetion to un-install ?
I'd drop that updater like a hot potato!
I feel pretty stupid, something similar happened in the past, but with xubuntu, they are all ways saying "new updates available", a pop down window, and when I accepted them, same, could not re-boot, I swore after that I would never accept any "updates", now the same, if I can fix this, or even if I do end up having to install again, I learned my lesson, I will not accept any upgrades,updates,etc, especially if everything is working ok, which it was, before I accepted the updates...stupid stupid stupid, on my part.
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But this leads to another problem, now the way it is, I can not go online from the terminal, at least I don't know anyway to.
I found the solution to this ( I think ) using google, i haven't tried it yet though.There does appear to be a way to start network manager, and connect via the terminal