Windows 11, Ubuntu Dual Boot GRUB

  • Thread starter Thread starter Sandi1987
  • Start date Start date

S

Sandi1987

Guest
I have Dual Boot Windows 11 and Ubuntu. Will Windows Updates removed GRUB and EFI Partition or if i re-install Windows?
 
Last edited by a moderator:
No. grub-install will install GRUB on [ESP]/EFI/grub or [ESP]/EFI/ubuntu.
But, after you will install (or update) Windows, Windows will register on the UEFI boot manager, hence you will not boot to Ubuntu.

{EDIT}
 

My Computers My Computers

System One System Two

  • At a glance

    Windows 11 HomeCore i5-12450HX20GB DDR5-4800iGPU + RTX 3050 Mobile (6GB)
    OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo
    CPU
    Core i5-12450HX
    Memory
    20GB DDR5-4800
    Graphics Card(s)
    iGPU + RTX 3050 Mobile (6GB)
    Sound Card
    Realtek
    Monitor(s) Displays
    the built-in laptop screen, and a generic monitor
    Screen Resolution
    1080p * 2
    Hard Drives
    GIGABYTE NVMe SSD 256GB (GP-GSM2NE3256GNTD)
    Micron NVMe SSD 512GB (MTFDKCD512QFM-1BDIAABLA)
    Browser
    Firefox
    Antivirus
    WD

  • At a glance

    Windows 10 ProCore i3-21004GB DDR3-2133iGPU
    Operating System
    Windows 10 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell
    CPU
    Core i3-2100
    Memory
    4GB DDR3-2133
    Graphics card(s)
    iGPU
    Screen Resolution
    1080p
    Antivirus
    WD
I found solution.

Convert Windows 11 from UEFI to Legacy, install Ubuntu and convert back to UEFI after Ubuntu installation.
 
Sandi1987 said:
I found solution.

Convert Windows 11 from UEFI to Legacy, install Ubuntu and convert back to UEFI after Ubuntu installation.
Click to expand...
Unnecessary. Install Windows on UEFI, and then install Ubuntu on UEFI, hence you will boot straight to GRUB and you will see:
Code: 
Ubuntu
Advanced Options for Ubuntu
Windows Boot Manager (on /dev/sda2)

To make sure Windows will boot to GRUB even after Windows Updates, use this command on Administrative Command Prompt:
Batch: 
bcdedit /set {bootmgr} path \EFI\ubuntu\shimx64.efi

If you can't see Windows in the Boot options, type this command in the Linux Terminal:
Bash: 
$ sudo update-grub
1653874397118.png
 
Last edited:

My Computers My Computers

System One System Two

  • At a glance

    Windows 11 HomeCore i5-12450HX20GB DDR5-4800iGPU + RTX 3050 Mobile (6GB)
    OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Lenovo
    CPU
    Core i5-12450HX
    Memory
    20GB DDR5-4800
    Graphics Card(s)
    iGPU + RTX 3050 Mobile (6GB)
    Sound Card
    Realtek
    Monitor(s) Displays
    the built-in laptop screen, and a generic monitor
    Screen Resolution
    1080p * 2
    Hard Drives
    GIGABYTE NVMe SSD 256GB (GP-GSM2NE3256GNTD)
    Micron NVMe SSD 512GB (MTFDKCD512QFM-1BDIAABLA)
    Browser
    Firefox
    Antivirus
    WD

  • At a glance

    Windows 10 ProCore i3-21004GB DDR3-2133iGPU
    Operating System
    Windows 10 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell
    CPU
    Core i3-2100
    Memory
    4GB DDR3-2133
    Graphics card(s)
    iGPU
    Screen Resolution
    1080p
    Antivirus
    WD
You must log in or register to reply here.
Hey Sandi1987,

Showing gratitude is important in online communities. Use the "like" button to appreciate helpful content. This motivates people to keep sharing knowledge. A "like" gives 1 point, "Helpful" gives 5 points, and "Great support" gives 10 points for exceptional help.

Similar threads

why does bootloader always get messed up when dual boot installing on another drive?
Replies
17
Views
677
Megahertz
Megahertz
Dual Boot Windows 11 + 10
Replies
2
Views
453
Megahertz
Megahertz
Dual-boot troubles with Windows 11 and BitLocker
Replies
7
Views
556
Scannerman
Scannerman
Dual Boot boots only the default OS
Replies
8
Views
508
Scott
Scott
Solved Windows 10 Home Single User dual boot on Windows 11 Pro
Replies
18
Views
2K
gondracorn
G

Latest Support Threads

Latest Tutorials

Back
Top Bottom