Hi everyone, I would ask you to please just take a look at my config, answer some questions and maybe give some recommendation.

First, my questions:

• extraArgs = ["-f"]` What does this do?
• if I first specify 25%FREE for root at the lvm-lvs and then specify 100%FREE for games, 25% of the file is for root and 75% is for games, right?

Here my config:

Hi everyone, I would ask you to please just take a look at my config, answer some questions and maybe give some recommendation.

First, my questions:

• extraArgs = ["-f"]` What does this do?
• if I first specify 25%FREE for root at the lvm-lvs and then specify 100%FREE for games, 25% of the file is for root and 75% is for games, right?

Here my config:

{
disko.devices = {
        disk = {
                disk0 = {
                        type = "disk";
                        device = "/dev/nvme1n1";
                        content = {
                                type = "gpt";
                                partitions = {
                                        esp = {
                                                name = "ESP";
                                                size = "500M";
                                                type = "EF00";
                                                content = {
                                                        type = "filesystem";
                                                        format = "vfat";
                                                        mountpoint = "/boot";
                                                        };
                                                };
                                        root = {
                                                name = "root0";
                                                size = "100%";
                                                content = {
                                                        type = "lvm_pv";
                                                        vg = "root_vg";
                                                };
                                        };
                                };
                        };
                };
                disk1 = {
                        type = "disk";
                        device = "/dev/nvme0n1";
                        content = {
                                type = "gpt";
                                partitions = {
                                        root = {
                                                name = "root1";
                                                size = 100%;
                                                content = {
                                                        type = "lvm_pv";
                                                        vg = "root_vg";
                                                };
                                        };
                                };
                        };
                };

                lvm_vg = {
                        root_vg = {
                                type = "lvm_vg";
                                lvs = {
                                        root = {
                                                size = "25%FREE";
                                                content = {
                                                        type = "btrfs";
                                                        extraArgs = ["-f"];
                                                        subvolumes = {
                                                                "/root" = {
                                                                 mountpoint = "/";
                                                                };

                                                                "/persist" = {
                                                                mountOptions = ["subvol=persist" "noatime"];
                                                                mountpoint = "/persist";
                                                                };

                                                                "/nix" = {
                                                                mountOptions = ["subvol=nix" "noatime"];
                                                                mountpoint = "/nix";
                                                                };
                                                        };
                                                };
                                        };

                                        games = {
                                                size = "100%FREE";
                                                content = {
                                                        type = "btrfs";
                                                        extraArgs = ["-f"];
                                                        subvolumes = {
                                                                "/games" = {
                                                                mountOptions = ["noatime"];
                                                                mountpoint = "/games";
                                                                };
                                                        };
                                                };
                                        };
                                };
                        };
                };
        };
}

Hi everyone, I would ask you to please just take a look at my config, answer some questions and maybe give some recommendation.

First, my questions:

• extraArgs = ["-f"]` What does this do?
• if I first specify 25%FREE for root at the lvm-lvs and then specify 100%FREE for games, 25% of the file is for root and 75% is for games, right?
• does the mountOptions = ["subvol=games" "noatime"] sense? I coudnt find anything about thesubvol=games` part

Here my config:

{
disko.devices = {
        disk = {
                disk0 = {
                        type = "disk";
                        device = "/dev/nvme1n1";
                        content = {
                                type = "gpt";
                                partitions = {
                                        esp = {
                                                name = "ESP";
                                                size = "500M";
                                                type = "EF00";
                                                content = {
                                                        type = "filesystem";
                                                        format = "vfat";
                                                        mountpoint = "/boot";
                                                        };
                                                };
                                        root = {
                                                name = "root0";
                                                size = "100%";
                                                content = {
                                                        type = "lvm_pv";
                                                        vg = "root_vg";
                                                };
                                        };
                                };
                        };
                };
                disk1 = {
                        type = "disk";
                        device = "/dev/nvme0n1";
                        content = {
                                type = "gpt";
                                partitions = {
                                        root = {
                                                name = "root1";
                                                size = 100%;
                                                content = {
                                                        type = "lvm_pv";
                                                        vg = "root_vg";
                                                };
                                        };
                                };
                        };
                };

                lvm_vg = {
                        root_vg = {
                                type = "lvm_vg";
                                lvs = {
                                        root = {
                                                size = "25%FREE";
                                                content = {
                                                        type = "btrfs";
                                                        extraArgs = ["-f"];
                                                        subvolumes = {
                                                                "/root" = {
                                                                 mountpoint = "/";
                                                                };

                                                                "/persist" = {
                                                                mountOptions = ["subvol=persist" "noatime"];
                                                                mountpoint = "/persist";
                                                                };

                                                                "/nix" = {
                                                                mountOptions = ["subvol=nix" "noatime"];
                                                                mountpoint = "/nix";
                                                                };
                                                        };
                                                };
                                        };

                                        games = {
                                                size = "100%FREE";
                                                content = {
                                                        type = "btrfs";
                                                        extraArgs = ["-f"];
                                                        subvolumes = {
                                                                "/games" = {
                                                                mountOptions = ["subvol=games" "noatime"];
                                                                mountpoint = "/games";
                                                                };
                                                        };
                                                };
                                        };
                                };
                        };
                };
        };
}

Hi everyone, I would ask you to please just take a look at my config, answer some questions and maybe give some recommendation.

First, my questions:

• extraArgs = ["-f"]` What does this do?
• if I first specify 25%FREE for root at the lvm-lvs and then specify 100%FREE for games, 25% of the file is for root and 75% is for games, right?
• does the mountOptions = ["subvol=games" "noatime"] sense? I coudnt find anything about thesubvol=games` part

Here my config:

{
disko.devices = {
        disk = {
                disk0 = {
                        type = "disk";
                        device = "/dev/nvme1n1";
                        content = {
                                type = "gpt";
                                partitions = {
                                        esp = {
                                                name = "ESP";
                                                size = "500M";
                                                type = "EF00";
                                                content = {
                                                        type = "filesystem";
                                                        format = "vfat";
                                                        mountpoint = "/boot";
                                                        };
                                                };
                                        root = {
                                                name = "root0";
                                                size = "100%";
                                                content = {
                                                        type = "lvm_pv";
                                                        vg = "root_vg";
                                                };
                                        };
                                };
                        };
                };
                disk1 = {
                        type = "disk";
                        device = "/dev/nvme0n1";
                        content = {
                                type = "gpt";
                                partitions = {
                                        root = {
                                                name = "root1";
                                                size = 100%;
                                                content = {
                                                        type = "lvm_pv";
                                                        vg = "root_vg";
                                                };
                                        };
                                };
                        };
                };

                lvm_vg = {
                        root_vg = {
                                type = "lvm_vg";
                                lvs = {
                                        root = {
                                                size = "25%FREE";
                                                content = {
                                                        type = "btrfs";
                                                        extraArgs = ["-f"];
                                                        subvolumes = {
                                                                "/root" = {
                                                                 mountpoint = "/";
                                                                };

                                                                "/persist" = {
                                                                mountOptions = ["subvol=persist" "noatime"];
                                                                mountpoint = "/persist";
                                                                };

                                                                "/nix" = {
                                                                mountOptions = ["subvol=nix" "noatime"];
                                                                mountpoint = "/nix";
                                                                };
                                                        };
                                                };
                                        };

                                        games = {
                                                size = "100%FREE";
                                                content = {
                                                        type = "btrfs";
                                                        extraArgs = ["-f"];
                                                        subvolumes = {
                                                                "/games" = {
                                                                mountOptions = ["subvol=games" "noatime"];
                                                                mountpoint = "/games";
                                                                };
                                                        };
                                                };
                                        };
                                };
                        };
                };
        };
}

Couple of questions about NixOS live USBs:

I want to partition my 64 GB USB flash drive into two partitions (FAT32 live USB + ext4 storage), so I used the following disko config:

let
  usb = "/dev/disk/by-id/usb-USB_SanDisk_3.2Gen1_0401a943ae4197a38a6f9070194e9ea2b3fb8dbb7997e05ed1b197c0e28946be4b8f000000000000000000001cf4be6800926418a955810751ab6336-0:0";
in {
  disko.devices = {
    disk = {
      live = {
        type = "disk";
        device = usb;
        content = {
          type = "gpt";
          partitions = {
            ESP = {
              type = "EF00";
              device = "${usb}-part1";
              priority = 0;
              size = "8192M";
              content = {
                type = "filesystem";
                format = "vfat";
              };
            };
            storage = {
              device = "${usb}-part2";
              priority = 1;
              size = "100%";
              content = {
                type = "filesystem";
                format = "ext4";
              };
            };
          };
        };
      };
    };
  };
}

I then copied over the files from the (minimal, non-graphical) NixOS live ISO into partition 1, hoping that the instructions on the Arch wiki would generalize to NixOS, but then my live ISO gets stuck with the following error message:

[...]
Timed out waiting for device /dev/root, trying to mount anyway
mounting /dev/root on /iso...
mount: mounting /dev/root on /mnt-root/iso failed: No such file or directory

An error occurred [...]

How can I use my USB flash drive as both a live USB and as a storage device? I found this relevant Discourse link but there was no resolution to the problem there.

I realize this might not be the best place to ask this, but I figured that folks here would have expertise configuring boot partitions correctly.

Couple of questions about NixOS live USBs:

I want to partition my 64 GB USB flash drive into two partitions (FAT32 live USB + ext4 storage), so I used the following disko config:

let
  usb = "/dev/disk/by-id/usb-USB_SanDisk_3.2Gen1_0401a943ae4197a38a6f9070194e9ea2b3fb8dbb7997e05ed1b197c0e28946be4b8f000000000000000000001cf4be6800926418a955810751ab6336-0:0";
in {
  disko.devices = {
    disk = {
      live = {
        type = "disk";
        device = usb;
        content = {
          type = "gpt";
          partitions = {
            ESP = {
              type = "EF00";
              device = "${usb}-part1";
              priority = 0;
              size = "8192M";
              content = {
                type = "filesystem";
                format = "vfat";
              };
            };
            storage = {
              device = "${usb}-part2";
              priority = 1;
              size = "100%";
              content = {
                type = "filesystem";
                format = "ext4";
              };
            };
          };
        };
      };
    };
  };
}

I then copied over the files from the (minimal, non-graphical) NixOS live ISO into partition 1, hoping that the instructions on the Arch wiki would generalize to NixOS, but then my live ISO gets stuck with the following error message:

[...]
Timed out waiting for device /dev/root, trying to mount anyway
mounting /dev/root on /iso...
mount: mounting /dev/root on /mnt-root/iso failed: No such file or directory

An error occurred [...]

How can I use my USB flash drive as both a live USB and as a storage device? I found this relevant Discourse link but there was no resolution to the problem there.

I realize this might not be the best place to ask this, but I figured that folks here would have expertise configuring boot partitions correctly.

For reference, the NixOS manual says I should dd the ISO to the disk directly: sudo dd if=<path-to-image> of=/dev/sdX bs=4M conv=fsync