From e0858f1cb82235567cae7ceec0e49204035caebc Mon Sep 17 00:00:00 2001
From: Christoph Cullmann <christoph@cullmann.io>
Date: Thu, 24 Oct 2024 09:59:58 +0200
Subject: [PATCH] init miku

---
 README.md                       |   2 +-
 miku/configuration.nix          |  23 +++++
 miku/hardware-configuration.nix |  26 +++++
 miku/install.txt                | 164 ++++++++++++++++++++++++++++++++
 4 files changed, 214 insertions(+), 1 deletion(-)
 create mode 100644 miku/configuration.nix
 create mode 100644 miku/hardware-configuration.nix
 create mode 100644 miku/install.txt

diff --git a/README.md b/README.md
index 8c60a2f..51b1ed4 100644
--- a/README.md
+++ b/README.md
@@ -19,4 +19,4 @@ git init
 git add flake.nix
 nix --extra-experimental-features flakes --extra-experimental-features nix-command build .#nixosConfigurations.exampleIso.config.system.build.isoImage
 
-sudo dd if=result/iso/nixos-24.05.20240108.317484b-x86_64-linux.iso of=/dev/sda bs=4M conv=fsync
+doas dd if=result/iso/nixos-*-x86_64-linux.iso of=/dev/sda bs=4M conv=fsync
diff --git a/miku/configuration.nix b/miku/configuration.nix
new file mode 100644
index 0000000..0ddbb78
--- /dev/null
+++ b/miku/configuration.nix
@@ -0,0 +1,23 @@
+# Edit this configuration file to define what should be installed on
+# your system.  Help is available in the configuration.nix(5) man page
+# and in the NixOS manual (accessible by running `nixos-help`).
+
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [
+      # Include the results of the hardware scan.
+      ./hardware-configuration.nix
+
+      # Shared config of all machines
+      /data/nixos/share/common.nix
+    ];
+
+  # our hostname and an ID for ZFS
+  networking.hostName = "miku";
+  networking.hostId = "c132cafd";
+
+  # EurKey layout
+  services.xserver.xkb.layout = "eu";
+}
diff --git a/miku/hardware-configuration.nix b/miku/hardware-configuration.nix
new file mode 100644
index 0000000..106ea6c
--- /dev/null
+++ b/miku/hardware-configuration.nix
@@ -0,0 +1,26 @@
+# Do not modify this file!  It was generated by ‘nixos-generate-config’
+# and may be overwritten by future invocations.  Please make changes
+# to /etc/nixos/configuration.nix instead.
+{ config, lib, pkgs, modulesPath, ... }:
+
+{
+  imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
+
+  boot.initrd.availableKernelModules = [ "nvme" "xhci_pci" "ahci" "usbhid" "sd_mod" ];
+  boot.initrd.kernelModules = [ "amdgpu" ];
+  boot.kernelModules = [ "kvm-amd" ];
+
+  # AMD microcode updates please
+  hardware.cpu.amd.updateMicrocode = true;
+
+  # amd graphics
+  hardware.graphics.extraPackages = with pkgs; [ amdvlk rocm-opencl-icd rocm-opencl-runtime ];
+
+  # /boot efi partition to boot in UEFI mode
+  fileSystems."/boot" =
+    { device = "/dev/disk/by-id/nvme-KINGSTON_SFYRD4000G_50026B7686EC5F33-part1";
+      fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+      neededForBoot = true;
+    };
+}
diff --git a/miku/install.txt b/miku/install.txt
new file mode 100644
index 0000000..dac9a97
--- /dev/null
+++ b/miku/install.txt
@@ -0,0 +1,164 @@
+#
+# enable ssh for root
+#
+
+sudo bash
+systemctl start sshd
+passwd
+
+#
+# install script below
+#
+
+#
+# kill old efi boot stuff
+#
+
+efibootmgr
+efibootmgr -b 0 -B
+efibootmgr -b 1 -B
+efibootmgr -b 2 -B
+efibootmgr -b 3 -B
+efibootmgr -b 4 -B
+efibootmgr
+
+# Defining some helper variables (these will be used in later code
+# blocks as well, so make sure to use the same terminal session or
+# redefine them later)
+DISK=/dev/disk/by-id/nvme-KINGSTON_SFYRD4000G_50026B7686EC5F33
+DISK2=/dev/disk/by-id/nvme-KINGSTON_SFYRD4000G_50026B7686EC6164
+HOST=miku
+
+# ensure 4k sector size
+nvme format --lbaf=1 --force $DISK
+nvme id-ns -H $DISK
+
+# ensure 4k sector size
+nvme format --lbaf=1 --force $DISK2
+nvme id-ns -H $DISK2
+
+sleep 5
+
+# kill old data
+sgdisk --zap-all $DISK
+blkdiscard -v $DISK
+wipefs -a $DISK
+gdisk -l $DISK
+
+# wipe second disk
+sgdisk --zap-all $DISK2
+blkdiscard -v $DISK2
+wipefs -a $DISK2
+
+sleep 5
+
+# create partitions
+parted $DISK -- mklabel gpt
+sgdisk -n 1:0:+1024M -c 1:"EFI System Partition" -t 1:EF00 $DISK
+sgdisk -n 2:0:0 -c 2:"Linux" -t 2:8e00 $DISK
+parted $DISK -- set 1 boot on
+
+sleep 5
+
+# take a look
+cat /proc/partitions
+
+# boot partition
+mkfs.fat -F 32 -n EFIBOOT $DISK-part1
+
+sleep 5
+
+# ZFS zpool creation with encryption
+zpool create \
+    -o ashift=13 \
+    -o autotrim=off \
+    -O acltype=posixacl \
+    -O atime=off \
+    -O canmount=off \
+    -O compression=on \
+    -O dnodesize=auto \
+    -O utf8only=on \
+    -O normalization=formD \
+    -O xattr=sa \
+    -O mountpoint=none \
+    -O encryption=on \
+    -O keylocation=prompt \
+    -O keyformat=passphrase \
+    zpool $DISK-part2 $DISK2
+
+sleep 5
+
+# show the pool
+zpool status
+
+sleep 5
+
+# create all the volumes
+zfs create -o mountpoint=legacy zpool/data
+zfs create -o mountpoint=legacy zpool/nix
+zfs create -o mountpoint=legacy zpool/tmp
+
+# we want 64 KB recordsize
+zfs set recordsize=64K zpool/data
+zfs set recordsize=64K zpool/nix
+zfs set recordsize=64K zpool/tmp
+
+sleep 5
+
+# show the pool
+zpool status
+
+sleep 5
+
+# prepare install, tmpfs root
+mount -t tmpfs none /mnt
+
+# Create directories to mount file systems on
+mkdir -p /mnt/{data,nix,home,boot,root,etc/nixos,tmp}
+
+# mount the ESP
+mount $DISK-part1 /mnt/boot
+
+# mount volumes
+mount -t zfs zpool/data /mnt/data
+mount -t zfs zpool/nix /mnt/nix
+mount -t zfs zpool/tmp /mnt/tmp
+
+# bind mount persistent stuff to data
+mkdir -p /mnt/data/{home,root,nixos/$HOST}
+mount --bind /mnt/data/home /mnt/home
+mount --bind /mnt/data/root /mnt/root
+mount --bind /mnt/data/nixos/$HOST /mnt/etc/nixos
+
+# create fake /data to have the right paths
+mkdir -p /data
+mount --bind /mnt/data /data
+
+# take a look
+mount
+
+# configure
+nixos-generate-config --root /mnt
+
+# check /mnt/etc/nixos/hardware-configuration.nix /mnt/etc/nixos/configuration.nix
+
+# copy config data from another machine including secrets
+
+sudo scp -r /data/nixos root@192.168.13.115:/mnt/data
+
+# install
+
+nixos-install --option experimental-features 'nix-command flakes' --no-root-passwd --root /mnt
+
+# unmount all stuff and sync
+
+umount -Rl /data /mnt
+zpool export -a
+
+# shutdown once
+
+shutdown -h now
+
+# sync all /data after the install
+
+sudo -E rsync -va --delete --one-file-system /data/ root@192.168.13.115:/data/