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.
How do I install grub menu?
Reinstall the GRUB boot loader by following these steps:
- Place your SLES/SLED 10 CD 1 or DVD in the drive and boot up to the CD or DVD. …
- Enter the command “fdisk -l”. …
- Enter the command “mount /dev/sda2 /mnt”. …
- Enter the command “grub-install –root-directory=/mnt /dev/sda”.
How do I get my grub menu back?
The usual GRUB boot menu should appear. If it does not, hold Left Shift while booting. You will be able to choose between Ubuntu and Windows.
How do I get to the grub prompt in Linux?
If you are practicing on a functioning system, press C when your GRUB boot menu appears to open the GRUB command shell. You can stop the bootup countdown by scrolling up and down your menu entries with the arrow keys. It is safe to experiment at the GRUB command line because nothing you do there is permanent.
How do I find the grub menu list?
Use the list-menu subcommand of the bootadm command to list the GRUB menu entries that are currently on the system. This information is supplied by the grub.
How do I update-GRUB menu?
- In your Ubuntu open a terminal (press Ctrl + Alt + T at the same time)
- Make the changes you would like to make and save them.
- Close gedit. Your terminal should still be open.
- In the terminal type sudo update-grub , wait for the update to finish.
- Reboot your computer.
How do I reinstall GRUB from USB?
Method 2: Repair GRUB Bootloader Using A Desktop Live CD
- Step 1: Try Ubuntu Live Session. After making the bootable USB stick, insert it into your computer and boot Ubuntu on your computer. …
- Step 2: Install GRUB Repair Tool. …
- Step 3: Repair Bootloader on Ubuntu. …
- Step 4: Reboot The System.
What is a grub menu?
When you boot an x86 based system, the GRUB menu is displayed. This menu provides a list of boot entries to choose from. A boot entry is an OS instance that is installed on your system. lst file dictates the list of OS instances that are shown in the GRUB menu. …
How do I fix grub error?
How To Fix: error: no such partition grub rescue
- Step 1: Know you root partition. Boot from live CD, DVD or USB drive. …
- Step 2: Mount the root partition. …
- Step 3: Be the CHROOT. …
- Step 4: Purge Grub 2 packages. …
- Step 5: Re-install Grub packages. …
- Step 6: Unmount the partition:
How do I fix grub rescue mode?
You could do either of two things:
- Use a Windows 7 installation CD, boot it, and search for the repair option. After that you will get many options; then search for ‘command prompt’. …
- If you have any Linux installation CD/DVD or USB pendrive then live boot it and follow the steps shown on the page Boot-Repair.
How do I enter BIOS in Linux terminal?
Power the system on and quickly press the “F2” button until you see the BIOS setting menu. Under the General Section > Boot Sequence, make sure that the dot is selected for UEFI.
What is the GRUB command line?
GRUB allows a number of useful commands in its command line interface. Some of the commands accept options after their name; these options should be separated from the command and other options on that line by space characters.
How do I change GRUB command line?
Making Temporary Changes to a GRUB 2 Menu
- Start the system and, on the GRUB 2 boot screen, move the cursor to the menu entry you want to edit, and press the e key for edit.
- Move the cursor down to find the kernel command line. …
- Move the cursor to the end of the line.
How do I set up a grub file?
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.
What is boot grub menu LST?
The GRUB menu. lst file lists the contents of the GRUB main menu. The GRUB main menu lists boot entries for all the OS instances that are installed on your system, including Solaris Live Upgrade boot environments. The Solaris software upgrade process preserves any changes that you make to this file.