How do I restore a missing GRUB bootloader?

How do I restore a missing GRUB bootloader?

These are the steps that worked for me, without having to install any new packages:

1. Boot into Manjaro installer.
2. Open terminal.
3. sudo manjaro-chroot -a (and select system to mount)
4. grub-install /dev/sda (it’s sda for me; make sure you choose the right drive!)
5. grub-install –recheck /dev/sda.
6. update-grub.
7. exit.
8. reboot.

How do I resolve grub issues in Ubuntu?

How To Fix: error: no such partition grub rescue

1. Step 1: Know you root partition. Boot from live CD, DVD or USB drive.
2. Step 2: Mount the root partition.
3. Step 3: Be the CHROOT.
4. Step 4: Purge Grub 2 packages.
5. Step 5: Re-install Grub packages.
6. Step 6: Unmount the partition:

How do you fix a broken GRUB boot?

The graphical way

1. Insert your Ubuntu CD, reboot your computer and set it to boot from CD in the BIOS and boot into a live session. You can also use a LiveUSB if you have created one in the past.
2. Install and run Boot-Repair.
3. Click “Recommended Repair”.
4. Now reboot your system. The usual GRUB boot menu should appear.

How do I restore grub?

Resolution

1. Place your SLES/SLED 10 CD 1 or DVD in the drive and boot up to the CD or DVD.
2. Enter the command “fdisk -l”.
3. Enter the command “mount /dev/sda2 /mnt”.
4. Enter the command “grub-install –root-directory=/mnt /dev/sda”.
5. Once this command completes successfully reboot your system by entering the command “reboot”.

How do I reinstall grub in rescue mode?

Reinstalling GRUB loader

1. Boot the server into rescue mode, and mount the filesystem automatically.
2. The / partition would be mounted under /mnt/sysimage automatically.
3. Mount the /boot partition and /dev manually, to prepare the chroot environment:
4. Re-install the GRUB loader.

How do I enable grub 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”.

How do I install grub on my hard drive?

Installing GRUB2 on a BIOS system

1. Create a configuration file for GRUB2. # grub2-mkconfig -o /boot/grub2/grub.cfg.
2. List block devices available on the system. $ lsblk.
3. Identify the primary hard disk.
4. Install GRUB2 in the MBR of the primary hard disk.
5. Reboot your computer to boot with the newly installed bootloader.

Can you repair Ubuntu?

Boot-Repair is a simple tool to repair frequent boot issues you may encounter in Ubuntu like when you can’t boot Ubuntu after installing Windows or another Linux distribution, or when you can’t boot Windows after installing Ubuntu, or when GRUB is not displayed anymore, some upgrade breaks GRUB, etc.

How do I fix missing Ubuntu?

How to Fix Broken Packages in Ubuntu

1. Check for Updates.
2. Force APT to Correct Missing Dependencies or Broken Packages.
3. Force Reconfigure or Remove Broken Packages with DPKG.
4. Resolve DPKG Lock Issue.