NixOS configurations
My personal NixOS configurations. Clone the repository:
git clone https://username@github.com/jluttine/nixos-configuration /etc/nixos
cd /etc/nixos
Decrypt some encrypted configuration:
yadm -Y /etc/nixos/.yadm decrypt
If your hostname isn't included in the configuration file alternatives, symlinks aren't created properly. See Yadm manuals for more information.
Installing NixOS
Boot to NixOS installer.
Setting up internet connection
The installer needs internet connection. If you need to set up WLAN:
nmcli dev wifi connect <name> password <password>
Test internet connection:
ping google.com
Creating fully encrypted file system
DISK=/dev/sda
sgdisk --zap-all $DISK
fdisk $DISK
Create GPT partition table. If using BIOS (with GPT), create 1M partition of type BIOS boot (e.g., partition id 4). Then, create partitions for boot (e.g., partition id 1 assumed below and 1GB) and (encrypted) root (partition id 2 assumed below). The BIOS boot partition won't be given any filesystem, it is just for grub.
After fdisk, prepare an encrypted root file system:
cryptsetup -y -v luksFormat "$DISK"2
cryptsetup open "$DISK"2 cryptroot
mkfs.ext4 -L nixos-root /dev/mapper/cryptroot
mount -t ext4 /dev/mapper/cryptroot /mnt
Optionally, test that the encrypted file system works:
umount /mnt
cryptsetup close cryptroot
cryptsetup open "$DISK"2 cryptroot
mount -t ext4 /dev/mapper/cryptroot /mnt
Prepare boot partition:
mkfs.ext4 -L nixos-boot "$DISK"1
mkdir /mnt/boot
mount -t ext4 "$DISK"1 /mnt/boot
Fetching configuration
Create folder under which configuration will be fetched:
mkdir -p /mnt/etc
Set the hostname so yadm will use correct host specific configurations.
hostname <name>
Get the configuration from GitHub using yadm:
nix-shell -p yadm -p git -p gnupg1orig
yadm clone https://github.com/jluttine/nixos-configuration.git -w /mnt/etc/nixos -Y /mnt/etc/nixos/.yadm
yadm -Y /mnt/etc/nixos/.yadm decrypt
yadm -Y /mnt/etc/nixos/.yadm alt
exit
This funny thing is done because nixos-install changes root and yadm has
created symlinks with /mnt at the beginning:
ln -s .. /mnt/mnt
Note: After you have booted to the newly installed NixOS system, run to fix the symlinks and to remove the hack symlink:
yadm -Y /mnt/etc/nixos/.yadm alt
rm /mnt
Generate hardware configuration automatically:
nixos-generate-config --root /mnt
Installing
Install the system:
nixos-install
Reboot to the new system:
reboot