[intro] install arch from existing linux

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+---
+title: "Install Archlinux From Existing Linux"
+date: 2024-03-09T09:32:03+05:30
+lastmod: 2024-03-09T09:32:03+05:30
+draft: false
+keywords: ["archlinux", "nixos"]
+description: ""
+tags: [archlinux, nix]
+categories: [linux]
+author: ""
+
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+---
+Sometimes situations arise where I have to install Archlinux on a different partition/drive and I cannot switch to live media. Arch provides [`arch-install-scripts`](https://archlinux.org/packages/extra/any/arch-install-scripts/) to make things easier.
+<!--more-->
+The entire process is pretty straightforward this way and the experience is similar to that of a live media except you do not have to set up networking to get things started.
+
+## Installing nix
+We will be using the `nix` package manager to use `arch-install-scripts`. Reason being a) it's dependencies will be isolated from those of the host system, b) it can be installed on most mainstream Linux distributions. [Install nix](https://nixos.org/download#nix-install-linux) if you haven't already before proceeding to the next section. 
+
+## Spawning a shell
+Run `nix-shell -p arch-install-scripts` to spawn a shell with the package. Or you can run `nix shell nixpkgs#arch-install-scripts` if you have [flakes](https://nixos.wiki/wiki/Flakes) enabled. It is just a one time thing so we are not installing it and can be garbage collected on a latter date.
+
+## Getting started
+Prepare the target drive for installation. Set up partitions and mount the filesystem.
+
+