I can see that all the other Kernel folders in /lib/modules/ have a build subfolder. The 5.13.0-35-generic folder does not. The installer refers to this build folder saying
"Your kernel headers for kernel 5.13.0-35-generic cannot be found at /lib/modules/5.13.0-35-generic/build or /lib/modules/5.13.0-35-generic/source".
Maybe that's the problem? I tried finding the same Ubuntu archive links for that Linux kernel number but was unable to.
I just tried restarting and hitting Tab on the splash screen but it didn't do anything. When I hit ESC I just reached saw a verbose boot black screen I believe. In either case, it just brings me directly back to the login screen.



