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reinstall grub

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on Regards: Archive; Infrastructure;

Problem: Windows overwrite grub. Grub missing.

Solution:

  • Use a live linux to get access to your hdd. Use for example unetbootin with ubuntu live
  • Open a terminal
  • Use fdisk -l to find out where your linux system is installed
  • For example our linux system is located on sda1
  • mkdir /mnt/debian
  • mount /dev/sda1 /mnt/debian
  • ls /mnt/debian/home/yourusername # check if the mounted partition is the correct system
  • For using chroot we need some preparation
  • cp -L /etc/resolv.conf /mnt/debian/tc/
  • mount -t proc none /mnt/debian/proc
  • mount –rbind /sys /mnt/debian/sys
  • mount –rbind /dev /mnt/debian/dev
  • chroot /mnt/debian /bin/bash
  • grub-install /dev/sda1
  • update-grub
  • exit
  • shutdown now -r


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