beta install synced

beta/configuration.nix

@@ -11,7 +11,7 @@
       ./hardware-configuration.nix
 
       # Shared config of all machines
-      /data/nixos/share/common.nix
+      /nix/data/nixos/share/common.nix
     ];
 
   # our hostname and an ID for ZFS

beta/hardware-configuration.nix

@@ -10,10 +10,19 @@
   boot.initrd.kernelModules = [ "amdgpu" ];
   boot.kernelModules = [ "kvm-amd" ];
 
-  # efi partition
+  # /boot efi partition to boot in UEFI mode
   fileSystems."/boot" =
     { device = "/dev/disk/by-id/nvme-SAMSUNG_MZVLB1T0HBLR-000L2_S4DZNX0R362286-part1";
       fsType = "vfat";
+      options = [ "fmask=0022" "dmask=0022" ];
+      neededForBoot = true;
+    };
+
+  # /nix encrypted btrfs for the remaining space
+  boot.initrd.luks.devices."crypt0".device = "/dev/disk/by-id/nvme-SAMSUNG_MZVLB1T0HBLR-000L2_S4DZNX0R362286-part2";
+  fileSystems."/nix" =
+    { device = "/dev/mapper/crypt0";
+      fsType = "btrfs";
       neededForBoot = true;
     };
 

beta/install.sh

@@ -1,3 +0,0 @@
-# install
-
-nixos-install --option experimental-features 'nix-command flakes' --no-root-passwd --root /mnt

beta/install.txt

@@ -0,0 +1,122 @@
+#
+# 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-SAMSUNG_MZVLB1T0HBLR-000L2_S4DZNX0R362286
+HOST=beta
+
+# ensure 4k sector size
+nvme format --lbaf=1 --force $DISK
+nvme id-ns -H $DISK
+
+sleep 5
+
+# kill old data
+sgdisk --zap-all $DISK
+blkdiscard -v $DISK
+wipefs -a $DISK
+gdisk -l $DISK
+
+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
+
+# create the crypto containers with proper 4k sectors
+cryptsetup luksFormat --sector-size 4096 --batch-mode --verify-passphrase $DISK-part2
+
+# open the containers
+cryptsetup luksOpen $DISK-part2 crypt0
+
+# create one large btrfs on them, RAID0 with strong checksum
+mkfs.btrfs -f -d raid0 -m raid0 --checksum blake2 --features block-group-tree --label nix /dev/mapper/crypt0
+
+sleep 5
+
+# prepare install, tmpfs root
+mount -t tmpfs none /mnt
+
+# Create directories to mount file systems on
+mkdir -p /mnt/{nix,home,boot,root,etc/nixos}
+
+# mount the ESP
+mount $DISK-part1 /mnt/boot
+
+# mount large btrfs
+mount -t btrfs /dev/mapper/crypt0 /mnt/nix
+
+# ensure tmp fills not the RAM
+mkdir -p /mnt/tmp /mnt/nix/tmp
+mount --bind /mnt/nix/tmp /mnt/tmp
+
+# bind mount persistent stuff to data
+mkdir -p /mnt/nix/data/{home,root,nixos/$HOST}
+mount --bind /mnt/nix/data/home /mnt/home
+mount --bind /mnt/nix/data/root /mnt/root
+mount --bind /mnt/nix/data/nixos/$HOST /mnt/etc/nixos
+
+# create fake /nix/data to have the right paths
+mkdir -p /nix/data
+mount --bind /mnt/nix/data /nix/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 /nix/data/nixos root@192.168.13.xxx:/mnt/nix/data
+
+# install
+
+nixos-install --option experimental-features 'nix-command flakes' --no-root-passwd --root /mnt
+
+# unmount all stuff and sync
+
+umount -Rl /nix/data /mnt
+cryptsetup luksClose crypt0
+sync
+
+# shutdown once
+
+shutdown -h now

beta/post-install.sh

@@ -1,4 +0,0 @@
-# unmount all stuff
-
-umount -Rl /data /mnt
-zpool export -a

beta/pre-install.sh

@@ -1,103 +0,0 @@
-#
-# 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
-
-#
-# install script below
-#
-
-# 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-SAMSUNG_MZVLB1T0HBLR-000L2_S4DZNX0R362286
-HOST=beta
-
-# ensure 4k sector size
-nvme format --lbaf=1 --force $DISK
-nvme id-ns -H $DISK
-
-sleep 5
-
-# kill old data
-sgdisk --zap-all $DISK
-blkdiscard -v $DISK
-wipefs -a $DISK
-gdisk -l $DISK
-
-# 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=12 \
-    -o autotrim=on \
-    -O acltype=posixacl \
-    -O atime=off \
-    -O canmount=off \
-    -O compression=on \
-    -O dnodesize=auto \
-    -O normalization=formD \
-    -O xattr=sa \
-    -O mountpoint=none \
-    -O encryption=on \
-    -O keylocation=prompt \
-    -O keyformat=passphrase \
-    zpool $DISK-part2
-
-sleep 5
-
-# create all the volumes
-zfs create -o mountpoint=legacy zpool/data
-zfs create -o mountpoint=legacy zpool/nix
-
-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}
-
-# mount the ESP
-mount $DISK-part1 /mnt/boot
-
-# mount volumes
-mount -t zfs zpool/data /mnt/data
-mount -t zfs zpool/nix /mnt/nix
-
-# bind mount persistent stuff to data
-mkdir -p /mnt/{data/home,data/root,data/nixos/$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