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I want to achieve instant startup, roughly 1 sec, by disabling unwanted startup services in my pi.

During the boot up, the cmd shows things like CUPS printing service, samba, dhcpcd ... etc. I don't want to uninstall them but delay the start up of these services for like 5 to 15 secs.

In my case, I only wanted the x to be started and capable to run python3. Any thing I'll need to disable in order to achieve the targeted 1 sec boot up? I have no idea what are the services that would be triggered during start up. Anyone can help in pointing me some directions?

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    I'm pretty certain you can't boot in X on a Raspberry Pi (or any other common computer platform) in 1 second.
    – Dmitry Grigoryev
    Commented Aug 14, 2017 at 9:22
  • Well, it's a target, so basically what I'm trying to do is to minimize the overall initialize time before boot into raspbian system.
    – Rickleus B.H. Yoon
    Commented Aug 14, 2017 at 10:23

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Use systemd-analyze blame. It shows you all the services that affect the boot time.

This article is very useful for your purpose

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  • Hey mate, thanks a lot ! You'd enlighten me in this part
    – Rickleus B.H. Yoon
    Commented Aug 13, 2017 at 15:32

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