Reinstall Grub Bootloader on a Dual boot laptop Kali Tips #1

Sup everyone!

So for whatever reason my dual boot installation on my laptop was messed up which I’ve read could happen with some Windows updates. In this case, I couldn’t boot to the GRUB bootloader and therefore couldn’t boot into my Kali install. Here are the steps I took to fix the issue!

In this case nvme0n1p5 is the partition that contains the Linux Filesystem and nvme0n1p1 is the partition with the EFI system

Live boot into Kali

1. Mount Linux Filesystem:

  • mount /dev/nvme0n1p5 /mnt

2. Mount EFI System

  • mount /dev/nvme0n1p1 /mnt/boot/efi

3. Mount dev, pts, proc and sys

  • mount –bind /dev /mnt/dev
  • mount –bind /dev/pts /mnt/dev/pts
  • mount –bind /proc /mnt/proc
  • mount –bind /sys /mnt/sys
  • chroot /mnt
  • grub-install

6. Unmount everything

  • exit
  • exit
  • umount /mnt/dev/pts
  • umount /mnt/dev
  • umount /mnt/proc
  • umount /mnt/sys
  • umount /mnt
  • reboot

END TRANSMISSION

 

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