0

I have a problem where my GRUB menu does not appear and would boot directly into Windows directly. I have tried the solutions of editing the /etc/default/grub file but it do not seem to work.

This is my /etc/default/grub file:

GRUB_DEFAULT="Advanced options for Ubuntu>Ubuntu, with Linux 5.13.0-52-generic"
GRUB_TIMEOUT_STYLE="menu"
GRUB_TIMEOUT="10"
GRUB_DISTRIBUTOR="`lsb_release -i -s 2> /dev/null || echo Debian`"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

Ubuntu is not shown in the BIOS as well.

Arjun K Shibu
  • 951
La Yang
  • 1
  • Try changing the /etc/default/grub to following GRUB_DEFAULT=0 GRUB_HIDDEN_TIMEOUT=0 GRUB_HIDDEN_TIMEOUT_QUIET=true GRUB_TIMEOUT=10 GRUB_DISTRIBUTOR=lsb_release -i -s 2> /dev/null || echo Debian GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX="" – Arjun K Shibu Aug 18 '22 at 04:34
  • It's still the same. Grub menu do not appear – La Yang Aug 18 '22 at 07:20
  • Is your install 21.10 that used 5.13 kernel? Only current versions are supported. You need to upgrade or install current version of Ubuntu. Did Windows do an update & reset UEFI settings or turn Windows fast start up back on. Windows updates often reset things to its defaults. Update Ubuntu to current version & check both UEFI & Windows settings like you do with any new install. – oldfred Aug 18 '22 at 14:00
  • Yes, my kernel is 5.13. I could not boot into windows because I have switch my setting to AHCI mode else i cant boot into Ubuntu system (error saying acpi bios error could not resolve symbol). – La Yang Aug 19 '22 at 06:22
  • Does this answer your question? Can't boot into Ubuntu in Windows 10 / Ubuntu dual boot – karel Aug 19 '22 at 10:07

0 Answers0