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I've just removed acpi=off in updated Ubuntu 17.04 by Grub Customizer utility. And now I can't boot even with acpi=off parameter! I can see only white/orange dots on small rectangles in the center of the screen.

Also, I tried different kernels - 4.10.0.19, 33 (default) and 35 - with no success.

What can I do to fix it?

P.S. I'm using MSI X299 SLI motherboard. It has extremely buggy chipset X299 on board. But it worked perfectly fine with updated Ubuntu until I saved the new GRUB configuration.

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  • if you only want to put it back the way it was; the easiest (assuming you're comfortable with tty/terminal) is to press <E> (edit) instead of <enter> at the grub screen. then add a " 1" (or " single") to the end of the "linux" line (so its forced to single-user or recovery-mode). it'll boot to text-terminal asking for password (always root for me; if you've not enabled root login it may be your username; I've never tried), where you cd;vim (or edit the file back to where it works; you're happy) then 'reboot'
    – guiverc
    Sep 23, 2017 at 8:47
  • But I can edit to where it was just by adding acpi=offafter pressing <E>. And it doesn't help! It's really wired.
    – Dmitry
    Sep 23, 2017 at 8:55

1 Answer 1

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  1. Add acpi=off boot parameter.
  2. Press Ctrl+Alt+F1 after unsuccessful boot.
  3. Run sudo apt-get update and sudo apt-get upgrade commands.

Now I can boot but can't login. Also I can't use Ctrl+Alt+F1 anymore. Ubuntu is so buggy! Unbelievable.

  1. Select kernel 33 instead of 35 and it works again.

But what happened? It looks like I just restarted Ubuntu during update in background. And it just stopped to boot because I restarted it after launching Grub Customizer! It's not an operational system. It's garbage.

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