Why won't Linux start after the update?

Question

linux

Hello! There was an error that after updating kubuntu, when I rebooted the PC, I get the Kubuntu logo. After it, a black screen with a cursor and nothing else (. What to do in such a situation,

Answer 1

demolish / install other firewood on the video, as an option, just another core.
as? in Googledex, 100500 millions of ready-made answers were given on this topic / question
start recovery mode
you don’t know how to google = linux is clearly not for you

Answer 2

Here , here , here , and here .
Personal experience - demolished everything nafig and reinstalled! I agree with SOTVM , Google has a lot of answers to any questions - the ability to use search is the first rule of an IT specialist.
All the best to you

Answer 3

Press Ctrl+Alt+F1..F7
and see if the distro itself has loaded, if you can log in under the console, then everything is not so bad.
If the problem is with the kernel, then try running with a kernel with a lower version