# Command line

```
./unixnu <command> [options]
```

Options follow the command. The driver reads a device repository from `-D`, `UNIXNU_DEVICE`, the local build file, or `out/state.json`.

`kernel`, `package`, `firmware`, `payload`, `prelink`, and `userdata` are shortcuts for `build <step>`. Save paths and boot arguments in [unixnu.local.toml](/reference/configuration#local-build-inputs), then run `./unixnu kernel`, `./unixnu firmware`, `./unixnu payload`, and `./unixnu bootimg`. `--config FILE` selects another local build file. `status --json` includes its path in `build_config`.

## Commands

### defconfig

```
unixnu defconfig [NAME]
```

Lists `configs/*_defconfig` in the device repository. With a name, merges the ordered profile fragments and the selected file into `out/<device>/<os_profile>/<config>/.config` and parses it.

### fetch

```
unixnu fetch [NAME...] [--update]
```

Updates the module submodules of this repository and the device repository, then fetches git sources. With names, fetches only those sources. `--update` ignores the recorded lock when resolving refs. Explicit format 2 source commits retain priority. Writes the commits to `unixnu.lock` in the device repository.

### tree

```
unixnu tree
```

Resolves modules, fetches the references the steps need, and assembles `out/<device>/<os_profile>/<config>/tree`.

### ipsw

```
unixnu ipsw info
unixnu ipsw fetch [COMPONENT...]
```

`info` prints the product, build, device class and every manifest component with its size and path. `fetch` extracts the named components, or the `[ipsw] fetch` list when no component is named.

### build

```
unixnu build [kernel] [package] [firmware] [payload] [prelink] [userdata]
```

Runs userdata first when selected, then kernel (including prelink), package, payload and firmware. A standalone `prelink` runs when kernel is not selected. The default and `all` select kernel, package, payload and firmware. Use separate commands in [Building](/building) to inspect each artifact.

`build prelink` repeats the prelink without rebuilding XNU.

`build kernel` prepares the ordered patches, runs the compile-record pass, and builds selected component recipes plus `[kernel] archives` commands before linking. `component:<ID>` marks a component recipe position.

`build userdata --dry-run` checks the IPSW and the partition size.

### bootimg

```
unixnu bootimg [--fd FILE] [--dtb FILE] [--ramdisk FILE|none] [-o FILE]
```

Packs the boot image. The firmware volume defaults to the output under `--uefi`. The ramdisk defaults to the payload output when it exists.

### status

```
unixnu status [--json]
```

Prints the device, output path, profile roots, component scope, source revisions, local overrides, and patch order. `--json` emits `schema_version`, `device`, `name`, `output`, `configuration`, `config_path`, `configured`, `profiles`, `configuration_sources`, `board`, `components`, `modules`, and `patch_order`. Status reads cached or local SoC sources; run `fetch` to obtain a missing source.

### clean

```
unixnu clean
```

Removes `tree`, `logs`, `kernel`, `package`, `boot` and `edk2-conf` under the board output. Keeps fetched sources.

### release

```
unixnu release [--os VERSION] [--no-deps] [--check]
```

Runs the fixed steps `deps`, `preflight`, `patches`, `build`, `pack` and `verify` for the device, then writes `package.manifest.json`. The device repository's `scripts/package.sh` calls it. See [Device packaging script](/porting/packaging).

## Options

| Option | Meaning |
| --- | --- |
| `-D DIR`, `--device DIR` | Device repository |
| `--os VERSION` | OS profile for this run: `17`, `26`, `27` or a `profiles/os` directory name. The output directory follows it |
| `--out DIR` | Output root |
| `-j N`, `--jobs N` | Parallel jobs |
| `--local DIR` | Local tree with this repository's layout |
| `--local-drivers DIR` | Local drivers directory |
| `--local-kits DIR` | Local kits directory |
| `--local-patches DIR` | Local patches directory |
| `--local-scripts DIR` | Local scripts directory |
| `--local-package DIR` | Local package directory |
| `--local-module [KIND:]NAME=PATH` | One local module. Repeatable |
| `--uefi DIR` | Mu-Silicium checkout |
| `--edk2 DIR` | Mu_Basecore checkout |
| `--kernelcache FILE` | Original decompressed kernelcache |
| `--skip-preflight` | Skips the board preflight scripts |
| `--kernel FILE` | Prelinked kernel for the payload |
| `--kernel-arg NAME[=VALUE]` | Extra kernel argument. A name already in `[payload] kernel_args` is replaced. Repeatable |
| `--trust-cache FILE` | Trust cache bundle |
| `--owner-trust-cache FILE` | Owner-signed bundle with the original caches and extra modules. Replaces `--trust-cache` and skips the board allow-list |
| `--skip-setup` | Marks Setup as done in a copy of the Data seed |
| `--data-ramdisk FILE` | Data ramdisk seed |
| `--unique-chip-id HEX` | Platform seed for the ADT |
| `--ipsw PATH_OR_URL` | Target IPSW |
| `--dry-run` | Userdata dry run |
| `--target DEBUG\|RELEASE` | EDK II target |
| `--fd FILE` | Firmware volume for bootimg |
| `--dtb FILE` | Compiled device tree for bootimg |
| `--ramdisk FILE\|none` | Ramdisk for bootimg |
| `-o FILE`, `--output FILE` | Boot image output |

## Environment

| Variable | Equivalent |
| --- | --- |
| `UNIXNU_DEVICE` | `-D` |
| `UNIXNU_OUT` | `--out` |
| `UNIXNU_UEFI` | `--uefi` |
| `UNIXNU_EDK2` | `--edk2` |
| `UNIXNU_KERNELCACHE` | `--kernelcache` |
| `UNIXNU_DTB` | `--dtb` |
| `UNIXNU_IPSW` | `--ipsw` |
| `UNIXNU_UNIQUE_CHIP_ID` | `--unique-chip-id` |
| `JOBS` | `-j` |

## Exit behavior

| Condition | Result |
| --- | --- |
| Missing device repository | Error with the `-D` hint |
| Missing configuration for a kernel build | Error with the `defconfig` hint |
| Missing Mu-Silicium checkout for firmware | Error before fetching |
| IPSW identity mismatch | Error naming the expected and actual image |
| sha256 pin mismatch | Error naming the member |
| Firmware volume size mismatch | Error naming the size |
| Payload larger than `size_mib` | Error with the size to raise |
| Invalid kernel argument | Error naming the argument |
| Kernel command line over 1000 bytes | Error naming the length and the limit |
| Missing platform seed | Error with the `--unique-chip-id` hint |
| Example device repository | Error before build or bootimg |

## Next steps

- [Device configuration](/reference/configuration)
- [Output layout](/reference/output-layout)
- [Troubleshooting](/reference/troubleshooting)