* Enable remote installation

After booting the [[https://guix.gnu.org/en/download/][Gnu Guix System ISO image]], elect to drop into a shell after selecting your language and location.

Please start =SSH= and setup a non-blank root password.

#+begin_src sh
  herd start ssh-daemon
  passwd
#+end_src

* Prepare the installation

You can "ssh into" the Gnu Guix System installation: =ssh root@ip_here -p port_here=.

During new installations with =QEMU=, I typically [[https://serverfault.com/questions/704294/qemu-multiple-port-forwarding][forward port]] =22= to a fixed port number (e.g., =62000=).

For my personal setup, I'm using =ssh root@localhost -p 62000=.

** Create partitions
Identify your disk partitions (=fdisk -l= can help).

Create 2 partitions by running =cgdisk /dev/sda= (in my case)
- Setup the EFI partition (code =ef00=) of 300 MB (=/dev/sda1= in my case)
- Setup the Linux partition (default code) with the remaining disk space (=/dev/sda2= in my case)

=Write= changes to disk and then =Quit= the =cgdisk= interface.

** Create an encrypted device

Encrypt the main partition.

#+begin_src sh
  cryptsetup luksFormat --type luks1 /dev/sda2
#+end_src

** Open LUKS device

Open the encrypted device.

#+begin_src sh
  cryptsetup luksOpen /dev/sda2 guixvm
#+end_src

** Prepare installation

Run all the commands below to configure partitions and setup filesystems.

#+begin_src sh
  mkfs.btrfs -L guixroot /dev/mapper/guix

  mount -t btrfs /dev/mapper/guixvm /mnt

  btrfs subvolume create /mnt/root
  btrfs subvolume create /mnt/boot
  btrfs subvolume create /mnt/home
  btrfs subvolume create /mnt/gnu
  btrfs subvolume create /mnt/data
  btrfs subvolume create /mnt/log
  btrfs subvolume create /mnt/swap

  btrfs filesystem mkswapfile --size 4g /mnt/swap/swapfile
  btrfs subvolume snapshot -r /mnt/root /mnt/root-blank

  umount /mnt

  mount -o subvol=root /dev/mapper/guix /mnt
  mkdir -p /mnt/home /mnt/gnu /mnt/data /mnt/var/log /mnt/boot /mnt/swap
  mount -o subvol=home /dev/mapper/guix /mnt/home
  mount -o subvol=gnu  /dev/mapper/guix /mnt/gnu
  mount -o subvol=data /dev/mapper/guix /mnt/data
  mount -o subvol=log  /dev/mapper/guix /mnt/var/log
  mount -o subvol=boot /dev/mapper/guix /mnt/boot
  mount -o subvol=swap /dev/mapper/guix /mnt/swap

  mkfs.vfat /dev/sda1
  mkdir -p /mnt/boot/efi
  mount /dev/sda1 /mnt/boot/efi

  herd start cow-store /mnt
#+end_src

* Install the system

#+begin_src sh
  mkdir -p /mnt/etc
  cp config.scm /mnt/etc/config.scm
  guix system init /mnt/etc/config.scm /mnt
#+end_src

You can now reboot into your new system (shutdown/start or reboot depending on your setup).

#+begin_src sh
  reboot
#+end_src

* Setup the new system

** Update passwords

Both passwords for the =root= and =user= users are initially empty.

Let's login as =root= and change that.

#+begin_src sh
  passwd
  passwd user
#+end_src

** Update the system

You can now continue the configuration process remotely (=ssh user@localhost -p 62000= in my case).

#+begin_src sh
  guix pull --timeout=800 --max-silent-time=800
  sudo guix system reconfigure /etc/config.scm
  reboot
#+end_src

** Fix the clock

Connect to the machine remotely (=ssh user@localhost -p 62000= in my case).

#+begin_src sh
  guix package -i ntp
  GUIX_PROFILE="$HOME/.guix-profile"
  . "$GUIX_PROFILE/etc/profile"
  sudo ntpdate -s time.nist.gov && sudo hwclock --systohc
  guix package -r ntp
#+end_src

** User environment setup
#+begin_src sh
  sudo guix system -L ~/src/guix-config reconfigure ~/src/guix-config/hosts/$(hostname).scm
  sudo guix home -L ~/src/guix-config reconfigure ~/src/guix-config/home/$(hostname).scm
#+end_src