jahanson/nix-config-tn
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nix-config-tn/docs/vm/installing.md
truxnell 2a5ab82187 chore: more deploy
2024-03-21 22:59:23 +11:00

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Installing a playground VM

I've used gnome-boxes from my current Fedora laptop for running playground vm's.

Settings: ISO: nixos-minimal Hard drive: 32GB RAM: 2GB EFI: Enable

Expose port 22 to allow ssh into vm (host port 3022, guest 22)

# set temp root passwd
sudo su
passwd

sshd is already running, so you can now ssh into the vm remotely for the rest of the setup. ssh root@127.0.0.1 -p 3022

# Partitioning
parted /dev/sda -- mklabel gpt
parted /dev/sda -- mkpart root ext4 512MB -8GB
parted /dev/sda -- mkpart swap linux-swap -8GB 100%
parted /dev/sda -- mkpart ESP fat32 1MB 512MB
parted /dev/sda -- set 3 esp on

# Formatting
mkfs.ext4 -L nixos /dev/sda1
mkswap -L swap /dev/sda2
mkfs.fat -F 32 -n boot /dev/sda3

# Mounting disks for installation
mount /dev/disk/by-label/nixos /mnt
mkdir -p /mnt/boot
mount /dev/disk/by-label/boot /mnt/boot
swapon /dev/sda2

# Generating default configuration
nixos-generate-config --root /mnt

From this config copy the bootstrap configuration and fetch the hardware configuration.

scp -P 3022 nixos/hosts/bootstrap/configuration.nix root@127.0.0.1:/mnt/etc/nixos/configuration.nix
scp -P 3022 root@127.0.0.1:/mnt/etc/nixos/hardware-configuration.nix nixos/hosts/nixosvm/hardware-configuration.nix

Then back to the VM

nixos-install
reboot
nixos-rebuild switch

Set the password for the user that was created.

passwd truxnell

Also grab the ssh keys and re-encrypt sops

cat /etc/ssh/ssh_host_ed25519_key.pub | ssh-to-age

then run task

Login as user, copy nix git

mkdir .local
cd .local
git clone https://github.com/truxnell/nix-config.git
cd nix-config

Apply config to bootstrapped device First time around, MUST APPLY with name of host in ./hosts/ This is because .. --flake . looks for a nixosConfigurations key with the machines hostname The bootstrap machine will be called 'nixos-bootstrap' so the flake by default would resolve nixosConfigurations.nixos-bootstrap Subsequent rebuilds can be called with the default command as after first build the machines hostname will be changed to the desired machine

nixos-rebuild switch --flake .#<machinename>