# build installer { description = "Bcachefs enabled installation media"; inputs.nixos.url = "nixpkgs/nixos-unstable"; outputs = { self, nixos }: { nixosConfigurations = { exampleIso = nixos.lib.nixosSystem { system = "x86_64-linux"; modules = [ "${nixos}/nixos/modules/installer/cd-dvd/installation-cd-minimal-new-kernel-no-zfs.nix" ({ lib, pkgs, ... }: { boot.supportedFilesystems = [ "bcachefs" ]; boot.kernelPackages = lib.mkOverride 0 pkgs.linuxPackages_latest; }) ]; }; }; }; } git init git add flake.nix nix 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 # # 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 # # fix unlocking https://nixos.wiki/wiki/Bcachefs nix-env -iA nixos.keyutils keyctl link @u @s # 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-CT4000P3PSSD8_2325E6E63746 HOST=mini # 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:+256G -c 2:"nix" -t 2:8e00 $DISK sgdisk -n 3:0:0 -c 3:"data" -t 3:8e00 $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 # create encrypted bcachefs bcachefs format --block_size=4096 --errors=ro --metadata_checksum=xxhash --data_checksum=xxhash --compression=lz4 --wide_macs --acl --encrypted --fs_label=nix --discard -f $DISK-part2 bcachefs format --block_size=4096 --errors=ro --metadata_checksum=xxhash --data_checksum=xxhash --compression=lz4 --wide_macs --acl --encrypted --fs_label=data --discard -f $DISK-part3 # prepare install 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 bcachefs stuff mount -o noatime,nodiratime $DISK-part2 /mnt/nix mount -o noatime,nodiratime $DISK-part3 /mnt/data # bind mount persistent stuff to data mkdir -p /mnt/{data/home,data/root,data/nixos/$HOST} mount --bind /mnt/data/home /mnt/home mount --bind /mnt/data/root /mnt/root mount --bind /mnt/data/nixos/$HOST /mnt/etc/nixos # take a look mount # configure nixos-generate-config --root /mnt # save /mnt/etc/nixos/hardware-configuration.nix /mnt/etc/nixos/configuration.nix cp /mnt/etc/nixos/hardware-configuration.nix /tmp cp /mnt/etc/nixos/configuration.nix /tmp # copy config data # patch some paths there sudo scp -r /data/nixos root@192.168.13.100:/mnt/data # install nixos-install --no-root-passwd --root /mnt # unmount all stuff umount -Rl /mnt # # after install tasks for extra file systems # # create vms disk DD=/dev/disk/by-id/ata-CT2000MX500SSD1_2138E5D5061F sgdisk --zap-all $DD blkdiscard -v $DD wipefs -a $DD sleep 5 # create encrypted bcachefs bcachefs format --block_size=4096 --errors=ro --metadata_checksum=xxhash --data_checksum=xxhash --compression=lz4 --wide_macs --acl --encrypted --fs_label=vms --discard -f $DD