Slow boot, how do I configure for nosity boot?

[stan]

I have 18.04  on a couple of cheap laptops. This version does not work well
with the wireless chipset, and audio on these machine, FYI 10.10 solves all
these issues, BUT I don not want to go to it, as it will be easier to go to
the next LTS FROM the previous LTS.

These machine take *forever* to boot to an X login. How can I configure to
watch the boot sequence , so I can diagnose this issue?

-- 
"They that would give up essential liberty for temporary safety deserve
neither liberty nor safety."
						-- Benjamin Franklin