UM 18.04 taking long time (like 5 minutes) to complete boot

[mdooley]

See this link to a post of mine responding to a similar problem.

System taking forever to boot after messing with partitions

I think that your top entry is partly to blame - NetworkManager-wait-online.service See - https://askubuntu.com/questions/1018576/what-does-networkmanager-wait-online-service-do sudo systemctl disable NetworkManager-wait-online.service cut what felt like 15 seconds off one of my computer's boot time. Another terminal command to try (and post if it looks suspicious) is systemd-analyze critical-chain It'll produce something like this - [analyze_critical_chain]

You should try disabling NetworkManager-wait-online.service .