Quick Answer: How do I change Grub settings in Ubuntu?

How do I change the grub menu in Ubuntu?

How to Change Grub2 Boot Order in Ubuntu 16.04

  1. First edit the configuration file via command: gksudo gedit /etc/default/grub. …
  2. Update grub to apply the configuration changes: sudo update-grub.
  3. Finally set a default boot OS simply via command:

How do I change grub settings?

To edit grub, make your changes to /etc/default/grub . Then run sudo update-grub . The update-grub will make the permanent changes to your grub.

How do I change grub boot options?

Use the arrow keys to select the boot entry to edit, then type e to access the GRUB edit menu. Use the arrow keys to select the kernel or kernel$ line in this menu. Type e to add boot arguments to the line. Type any additional boot arguments that you want to specify.

How do I get to the grub menu in Ubuntu?

With BIOS, quickly press and hold the Shift key, which will bring up the GNU GRUB menu. (If you see the Ubuntu logo, you’ve missed the point where you can enter the GRUB menu.) With UEFI press (perhaps several times) the Escape key to get grub menu. Select the line which starts with “Advanced options”.

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How do I customize grub menu?

You can customize the Grub bootloader by simply editing the /etc/default/grub. cfg file. Grub allows users to tweak even the slightest of details in the boot menu. For beginners, Linux might be a bit hard to adapt to.

Where is the GRUB config file in Ubuntu?

The primary configuration file for changing menu display settings is called grub and by default is located in the /etc/default folder. There are multiple files for configuring the menu – /etc/default/grub mentioned above, and all the files in the /etc/grub. d/ directory.

How do I make grub my default bootloader?

Use the F5/F6 key to make GRUB the default, if it’s not already the default. Follow that by pressing the F10 key, then Yes to the prompt to save and exit. Now whenever the computers boots, the GRUB boot manager will be the one you see.

How do I make Ubuntu default GRUB bootloader?

Open /etc/default/grub file using any text editor, for example nano. Find the line ” GRUB_DEFAULT “. We can select the default OS to boot using this option. If you set the value as “0”, the first operating system in the GRUB boot menu entry will boot.

How do I change boot options in Ubuntu?

1 Answer

  1. Open a terminal window and execute: sudo nano /boot/grub/grub.cfg.
  2. Enter your password.
  3. In the file opened, find the text: set default=”0″
  4. Number 0 is for the first option, number 1 for the second one, etc. Change the number for your choice.
  5. Save the file by pressing CTRL+O and exit by pressing CRTL+X .
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How do I manually modify the boot parameter in grub before system boot?

To edit a specific boot entry, use the arrow keys to select the entry, then type e to edit the entry. In the GRUB edit screen, navigate to the $multiboot line, then type the additional boot option or kernel argument at the end of the line. To exit the GRUB edit menu and boot the entry you just edited, press Control-X.

How do I fix GRUB?


  1. Type sudo grub, this will give you a the GRUB prompt. Now you can enter GRUB specific commands.
  2. Type find /boot/grub/stage1. …
  3. Next up, use the location returned above and issue the command root(hdX, Y). …
  4. Next issue the command setup(hd0) or hdX as the case may be. …
  5. Type quit to exit GRUB and then reboot the computer.

How do I run Ubuntu from GRUB command line?

via Partition Files Copy

  1. Boot to the LiveCD Desktop.
  2. Mount the partition with your Ubuntu installation. …
  3. Open a terminal by selecting Applications, Accessories, Terminal from the menu bar.
  4. Run the grub-setup -d command as described below. …
  5. Reboot.
  6. Refresh the GRUB 2 menu with sudo update-grub.

What is GRUB menu in Linux?

Grub is the boot menu. If you have more than one operating system installed, it allows you to select which one to boot. Grub is also useful for troubleshooting. You can use it to modify the boot arguments or to boot from an older kernel.