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Pranav
Asked: 2019-05-19 07:46:37 +0800 CST

I have set Grub timeout is 4 sec. But sometimes, grub start to boot after 30 secs. Why? What's wrong? [duplicate]

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gedit /etc/default/grub output is:

GRUB_DEFAULT=0
GRUB_TIMEOUT=4
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
GRUB_CMDLINE_LINUX=""

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.

grub2 19.04

1 Answers

  1. Best Answer

    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:

    GRUB_RECORDFAIL_TIMEOUT=4

    and update grub:

    update-grub2
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