nixos/docs/Grub.md

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# Grub
This document is for information regarding Grub.
## Reinstall Grub
If the grub install breaks and you ever need to reinstall grub, the following
command is how you do it:
```bash
sudo NIXOS_INSTALL_BOOTLOADER=1 /nix/var/nix/profiles/system/bin/switch-to-configuration boot
```