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Sometimes, when I reboot the dirty way, I get a menu (black screen, grey letters) .

This is asking to choose what/how I want to launch Ubuntu (very sorry I dont remind which modes).

How is it possible to disable it ? cause the computer has no screen and I dont want boot to be stopped by this screen.

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  • 3
    possible duplicate of How to disable Grub's menu from showing up after failed boot
    – Byte Commander
    Sep 14, 2015 at 9:58
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    Simple solution: Do not hard reboot. Advanced solution: see linked question above.
    – Byte Commander
    Sep 14, 2015 at 9:59
  • @ByteCommander : thank you but... without screen, users do hard reboot to shut down. Unless a better way is possible (w/o screen) ?
    – 3pic
    Sep 14, 2015 at 10:02
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    You have a keyboard? I guess without monitor it's a server release without GUI. Can't you configure it to shutdown if you only touch the power button (ACPI settings or something like that) instead of hard-shutdown? Or you could at least use the magic kernel commands (ALT+SYSRQ+R, then +E, +I, +S, +U and +B, waiting a short time for each command to complete.)
    – Byte Commander
    Sep 14, 2015 at 10:09
  • Another possibility is to remote login (I use PuTTY for that) and to start the command reboot Sep 14, 2015 at 10:37

1 Answer 1

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You need to change the grub boot settings..

sudo -H gedit /etc/default/grub

you need to change this line:

GRUB_HIDDEN_TIMEOUT_QUIET=false

to

GRUB_HIDDEN_TIMEOUT_QUIET=true

save configuration file and update grub:

sudo update-grub

There are also some grub setting applications that can help you with this using a gui.

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  • @Mackel, thank you. Im about to test it... one stupid question though ? what is the best way to reproduce Grub menu display ?
    – 3pic
    Sep 14, 2015 at 12:01
  • may be changing that back to true ?
    – erluxman
    May 31, 2017 at 11:52

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