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A week or two ago, My ubuntu laptop (ASUS X556U) has started to experience a 10-30 second delay before reaching the first purple screen (GRUB loaded). I think this is happening since a package update in the last weeks.

The output of systemd-analyze time is

Startup finished in
5.633s (firmware) + 2.423s (loader) + 3.604s (kernel) + 15.727s (userspace) = 27.388s

graphical.target reached after 15.350s in userspace

so the loading time of Linux are good/fast enough for me.

How can I regain my usual boot time¿?

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I experienced a similar problem on my Lenovo X220 some weeks ago.

In my case, the problem was the default GRUB_TIMEOUT, which makes the system wait for 10 seconds before loading grub. You can check this answer for more info. I managed to regain the usual boot speed by lowering GRUB_TIMEOUT to 1 second.

To achieve that, edit Grub's configuration file /etc/default/grub, and change the value of GRUB_TIMEOUT around line 8 and set it to 1:

  • Run sudo nano /etc/default/grub
  • Find the line (arround line 8) with GRUB_TIMEOUT=10 and change it to GRUB_TIMEOUT=1
  • Save changes and exit your editor
  • Run sudo update-grub
  • Reboot your machine

Then you should be enjoying a fast boot again.

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  • Wow thanks, thanks, thanks and thanks !! You saved my day, I was going mad... Searching and finding nothing. Now i regained my ~30 sec boot time – DGAPCA Nov 28 '18 at 10:40
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    That should be the default config. I don't understand why it is configured to wait 10 seconds before starting to boot. – DGAPCA Nov 28 '18 at 10:42
  • Maybe, in such situation accessing grub boot menu will be substantially harder. – dgonzalez Nov 28 '18 at 10:53

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