Refine install instructions

1-nixos-node/0-install-nixos.md

@@ -8,12 +8,14 @@ Steps based on https://nixos.org/manual/nixos/stable/#sec-installation-manual-su
 
 ```sh
 parted /dev/mmcblk0 -- mklabel gpt
+# If there is an existing OS you will have to type yes to proceed
 parted /dev/mmcblk0 -- mkpart root ext4 512MB -8GB
 parted /dev/mmcblk0 -- mkpart swap linux-swap -8GB 100%
 parted /dev/mmcblk0 -- mkpart ESP fat32 1MB 512MB
 parted /dev/mmcblk0 -- set 3 esp on
 
 mkfs.ext4 -L nixos /dev/mmcblk0p1
+
 mkswap -L swap /dev/mmcblk0p2
 swapon /dev/mmcblk0p2
 mkfs.fat -F 32 -n boot /dev/mmcblk0p3
@@ -25,11 +27,12 @@ nano /mnt/etc/nixos/configuration.nix
 # Set hostname networking.hostName = "jaglan-beta-mNN";
 nixos-install
 # Set the root password
-nano /mnt/etc/nixos/configuration.nix
+reboot
+nano /etc/nixos/configuration.nix
 # Enable ssh access
 # services.openssh.enable = true;
 # services.openssh.settings.PermitRootLogin = "yes";
-reboot
+nixos-rebuild switch
 ```
 
 If starting from older nixos, upgrade the OS