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lewis4u
Asked: 2017-07-07 04:25:35 +0800 CST

Where to change 30 seconds for grub on forced reset

  • 772

When I start my Ubuntu there is this splash screen:

enter image description here

and i got rid of it by changing this line:

from
GRUB_TIMEOUT=2
to
GRUB_TIMEOUT=0

so it skips the grub right away.

But if I force reset/power off the machine I get this screen:

enter image description here

Now with 30 seconds countdown...

My question is where is this coming from, which file? I want to change it and it's not in /etc/default/grub

boot

2 Answers

  1. Best Answer

    I found it on my own

    in file /etc/grub.d/00_header

    on line 333 there is a costant

    set timeout=${GRUB_RECORDFAIL_TIMEOUT:-30}

    and you can override it in /etc/default/grub file like this

    GRUB_RECORDFAIL_TIMEOUT=0

    and now even if i force reboot/power off it will skip the grub

    • 17

  2. lewis4u's answer works, but is more complicated than necessary.

    Simply add the following line to /etc/default/grub:

    GRUB_RECORDFAIL_TIMEOUT=5

    I used 5 seconds, but you can use whatever value you want.

    • 2