How to speed up boot Ubuntu 20.04?

Question

linux

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attached a snapshot from systemd-analyze.
Notebook specifications:
RAM - 12GB
Processor - Intel Core i7-6500U 2.5GHz x 4
Graphics - Intel HD Graphics 520

Used daily for work purposes, only messengers and cloud storages are installed, there is nothing in autorun.
Tell me what and how to do to reduce the boot time when you turn it on
On a clean ebunt, the download is up to 30 seconds, now it's 1.5 minutes.

Answer 1

ssd install

Answer 2

1. Buy an ssd and forget about the problem
2. Learn the systemd-analyze utility.
systemd-analyze blame - Shows the slowest starting services.
Also, for example, you can build a beautiful picture of the
systemd-analyze load graph plot > graph.svf , analyze, disable unnecessary, suffer.

Answer 3

Replace
GRUB_CMDLINE_LINUX_DEFAULT="splash quiet"with GRUB_CMDLINE_LINUX_DEFAULT=""in /etc/default/grub
Then do update-grub
When the system starts, a log will be displayed. You will see exactly where it freezes, since the problem may well be on the side of the iron.
The same data can be viewed in the logs, but it's easier this way.
PS: these services: NetworkManager-wait-online.serviceand systemd-networkd-wait-online.servicein any case, turn them off, because there is no point in them.

Answer 4

through systemctl, turn off unnecessary services / services (i.e. those that you do not need)
they are not visible on the screen, as already written in the comments - fill in the picture in svg
wangyu - wait-online.service is stupid

Answer 5

Lived to disable services in Linux. You just have a slow computer, but you need a fast one)

Answer 6

Do you get a message like "disk check in progress" when loading?