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replaced HDD with SSD because slow boot ,boot is only about 2X faster than HDD!!

25 seconds from pressing the power key to the login screen

core-i5-4310U 2GHz - 8GB Ram DDR3

systemd-analyze blame using HDD :

https://paste.ubuntu.ir/liyl

systemd-analyze blame using SSD :

https://paste.ubuntu.ir/amnx

commands in how to decrease the boot time just decreased time in systemd-analyze and boot time with stopwatch has no changes

I removed snap ,disabled NetworkManager-wait-online.service

using systemd-analyze startup takes 7.683s but but 25s to viewing login page .

Mohammad javad
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    The speed of the ssd is more important than the processor, cpu speed or the amount of ram :P Include systemd-analyze blame into the question please. That will show the units and time needed to load. – Rinzwind Aug 19 '20 at 10:29
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    Does this answer your question? How to decrease the boot time – Raffa Aug 19 '20 at 10:57
  • See also: https://askubuntu.com/questions/1187117/slow-boot-boot-19-10-tried-almost-everything & https://askubuntu.com/questions/1018576/what-does-networkmanager-wait-online-service-do & https://askubuntu.com/questions/800479/ubuntu-16-04-slow-boot-apt-daily-service I typically uninstall all snaps and for the few I want install the .deb. In grub I change quiet splash to noplymouth, you then see boot process. – oldfred Aug 19 '20 at 14:06
  • they didn't help!!! – Mohammad javad Aug 20 '20 at 17:59

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