Ubuntu dualboot Windows without Grub

Selim Yıldırım

11/13/22, 9:53 PM

windows dual boot system. I use grub to navigate between OS. I want to boot directly into ubuntu without any visual or any other delay. I dont use windows much but it is essential for me. So i want to boot to ubuntu directly without any delay so that my computer opens at high speed. And i want to boot to windows when i need. I tried grub2 customizer but even when timeout is 0 it displays and it delays booting. My /etc/default/grub

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT="Ubuntu"
GRUB_TIMEOUT_STYLE="hidden"
#GRUB_HIDDEN_TIMEOUT="0"
GRUB_TIMEOUT="0"
GRUB_DISTRIBUTOR="`lsb_release -i -s 2> /dev/null || echo Debian`"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
GRUB_HIDDEN_TIMEOUT_QUIET="false"
#GRUB_DISABLE_OS_PROBER="false"

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL="console"

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE="1920x1080x24"

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID="true"

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

GRUB_SAVEDEFAULT="false"

export GRUB_COLOR_NORMAL="light-gray/black"
export GRUB_COLOR_HIGHLIGHT="magenta/black"
GRUB_HIDDEN_TIMEOUT="0"

Can you help me?

0 + 1

partitioning

boot

grub2

dual-boot

windows

oldfred

11/13/22, 10:52 PM

Do not set timeout to 0, as then if you have issues will not be able to get to grub to boot recovery mode. Is this an UEFI system, where you can directly boot Windows from UEFI boot menu? If so you do not need Windows in grub menu & can turn os-prober off. Remove #, change to "true" and then run `sudo update-grub`. But if BIOS and only one MBR, you just about have to have grub to dual boot.

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Ubuntu dualboot Windows without Grub

TH: Ubuntu dualboot Windows โดยไม่มี Grub

RO: Ubuntu dualboot Windows fără Grub

RU: Ubuntu с двойной загрузкой Windows без Grub

VI: Windows khởi động kép Ubuntu không có Grub

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.