gedit /etc/default/grub output is:

GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"

Let me know if u need more output. This happens like 1 out of 5 times. But I do not want this to happen anymore. Any help would be appreciated.

  • It is just using the default timeout value. See grep timeout /boot/grub/grub.cfg output. It happened to me also once. But, I do not remember the case. – FedonKadifeli May 18 '19 at 15:50
  • @FedonKadifeli u are right. I am seeing an output, "... set timeout=30 ...." What should I do now? Decrease it to 4 sec? Is this a normal thing? Because usually people only recommend editing "etc/default/grub", so..?! – Pranav May 18 '19 at 15:52
  • You might also look at https://askubuntu.com/a/244752/283721 – Charles Green May 18 '19 at 15:57

It happens on hard reset or forced reboot.

The value of 30 seconds is set in /etc/grub.d/00_header

  set timeout=${GRUB_RECORDFAIL_TIMEOUT:-30}

If you want to change it, you have to specify your own value in /etc/default/grub

sudo editor /etc/default/grub

Add new line:


and update grub:

| improve this answer | |
  • thanks. I hope this works. Is there a way to confirm this? – Pranav May 18 '19 at 16:14
  • possibly by holding power button down until PC goes off, but I don't recommend it, since this can mess your hard drive or filesystem – Comar May 18 '19 at 19:11

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