Hello, I use disko for all my machines running preservation with tmpfs and btrfs. I've been reoing my homelab and decided to try out bcachefs but currently my system just boots to emergency mode. As I said I'm new to bcachefs, so if I am doing anything obviously wrong that anyone can point out that would be greatly appreciated. Running the same configurations for preservation that I daily drive on my machine so I dont think its anything there. Not sure if I'm just doing subvolumes incorrectly or something like that.

{
  disko.devices = {
    disk = {
      nix = {
        type = "disk";
        device = "/dev/disk/by-id/nvme-WD_BLACK_SN770_1TB_234252800502";
        content = {
          type = "gpt";
          partitions = {
            boot = {
              size = "1G";
              type = "EF00";
              content = {
                type = "filesystem";
                format = "vfat";
                mountpoint = "/boot";
                mountOptions = ["umask=0077"];
              };
            };

            root = {
              size = "100%";
              content = {
                type = "bcachefs";
                filesystem = "root";
                label = "root";
                extraFormatArgs = ["--discard"];
              };
            };
          };
        };
      };

      # NVME raid drives
      nvme-6749 = {
        type = "disk";
        device = "/dev/disk/by-id/nvme-CT2000P310SSD8_24514CF66749";
        content = {
          type = "bcachefs";
          filesystem = "np1";
          label = "np1.6749";
          extraFormatArgs = ["--discard"];
        };
      };

      nvme-7818 = {
        type = "disk";
        device = "/dev/disk/by-id/nvme-CT2000P310SSD8_24514CF67818";
        content = {
          type = "bcachefs";
          filesystem = "np1";
          label = "np1.7818";
          extraFormatArgs = ["--discard"];
        };
      };

      nvme-7847 = {
        type = "disk";
        device = "/dev/disk/by-id/nvme-CT2000P310SSD8_24514CF67847";
        content = {
          type = "bcachefs";
          filesystem = "np1";
          label = "np1.7847";
          extraFormatArgs = ["--discard"];
        };
      };

      nvme-7917 = {
        type = "disk";
        device = "/dev/disk/by-id/nvme-CT2000P310SSD8_24514CF67917";
        content = {
          type = "bcachefs";
          filesystem = "np1";
          label = "np1.7917";
          extraFormatArgs = ["--discard"];
        };
      };

      # HDD raid drives
      hdd-3ALH = {
        type = "disk";
        device = "/dev/disk/by-id/ata-ST4000VN006-3CW104_ZW603ALH";
        content = {
          type = "bcachefs";
          filesystem = "dp1";
          label = "dp1.3ALH";
          extraFormatArgs = ["--discard"];
        };
      };

      hdd-40NG = {
        type = "disk";
        device = "/dev/disk/by-id/ata-ST4000VN006-3CW104_ZW6040NG";
        content = {
          type = "bcachefs";
          filesystem = "dp1";
          label = "dp1.40NG";
          extraFormatArgs = ["--discard"];
        };
      };
    };

    bcachefs_filesystems = {
      root = {
        type = "bcachefs_filesystem";
        extraFormatArgs = [
          "--compression zstd:1"
        ];
        subvolumes = {
          nix = {
            mountpoint = "/nix";
          };
          root = {
            mountpoint = "/nix/persist";
          };
          home = {
            mountpoint = "/nix/persist/home";
          };
        };
      };

      np1 = {
        type = "bcachefs_filesystem";
        extraFormatArgs = [
          "--compression zstd:1"
          "--erasure_code"
          "--data_replicas 1"
          "--metadata_replicas 2"
        ];
        subvolumes = {
          root = {
            mountpoint = "/nix/persist/npool";
          };
        };
      };

      dp1 = {
        type = "bcachefs_filesystem";
        extraFormatArgs = [
          "--compression zstd:10"
          "--replicas 2"
        ];
        subvolumes = {
          root = {
            mountpoint = "/nix/persist/dpool";
          };
        };
      };
    };

    nodev."/" = {
      fsType = "tmpfs";
      mountOptions = [
        "defaults"
        "size=6G"
        "mode=755"
      ];
    };
  };
}

In reply to @zimward:zimward.moe
bcachefs didn't like to format my drive (its an relatively old nvme), that was about 6months ago. can you verify that the partition/drives have been formatted?