chore(scripts): remove free disk space checks

The checks guarded a local development disk floor and do not belong in
the shared scripts. The scratch image capacity check in
prepare-air-nir-diagnostic.py is kept because it validates a mounted
image, not the host disk.

drivers/NativeUfs/tests/check_arm64_root_commands.py

@@ -31,8 +31,6 @@ def main():
     parser.add_argument('--linker',default='ld.lld')
     args=parser.parse_args()
     out=args.output.resolve(); out.mkdir(parents=True,exist_ok=True)
-    if shutil.disk_usage(out).free < 5*1024**3+512*1024**2:
-        raise SystemExit('Keep 5 GiB free plus fixture headroom')
     source=Path(__file__).resolve().parent
     production=source.parent/'NativeUfs.cpp'
     extracted='\n'.join(extract(production.read_text(),name) for name in

scripts/build-air-nir-host.py

@@ -43,8 +43,6 @@ def sha(path):
     return hashlib.sha256(path.read_bytes()).hexdigest()
 
 
-if shutil.disk_usage(ROOT).free < 27 * 1024**3:
-    raise SystemExit('Require 7 GiB free to preserve the 5-GiB floor')
 if run([LLVM, '--version']).stdout.strip() != '23.1.3':
     raise SystemExit('This frontend is qualified only with LLVM 23.1.3')
 llvm_bin = Path(run([LLVM, '--bindir']).stdout.strip())
@@ -276,7 +274,5 @@ report = dict(llvm_version='23.1.3', llvm_config_sha256=sha(LLVM), executable_sh
               metal_pipeline_linked=False, complete_library_support=False,
               test_oracle_air_fma_semantics='Explicit fused-FMA interpretation; AIR implementation equivalence remains unqualified')
 (OUT / 'report.json').write_text(json.dumps(report, indent=2) + '\n')
-if shutil.disk_usage(ROOT).free < 5 * 1024**3:
-    raise RuntimeError('Disk floor violated')
 print('PASS: 240 originals classified, 15 refusal controls; 22 original shaders compiled with verified vertex/resource/fragment outputs and center-perspective inputs + real roundtrip')
 print('No GPU execution, complete AIR library support, native iOS compiler or Metal/UI claim')

scripts/build-air-nir-ios.py

@@ -20,14 +20,13 @@ def run(cmd,log,timeout):
         process=subprocess.Popen([str(v) for v in cmd],stdout=f,stderr=subprocess.STDOUT,env=env)
         start=time.monotonic()
         while process.poll() is None:
-            if shutil.disk_usage(ROOT).free<5*1024**3 or time.monotonic()-start>timeout:
+            if time.monotonic()-start>timeout:
                 process.terminate()
                 try:process.wait(timeout=10)
                 except subprocess.TimeoutExpired:process.kill();process.wait()
                 raise SystemExit('Native compiler stopped at disk/time bound; see '+log)
             time.sleep(1)
         if process.returncode:raise SystemExit('Native compiler failed; see '+log)
-if shutil.disk_usage(ROOT).free<28*1024**3:raise SystemExit('Require 28 GiB free before native compiler build')
 pins=json.loads((ROOT/'scripts/data/adreno-compiler-inputs.json').read_text())
 if read(['git','-C',SOURCE,'rev-parse','HEAD'])!=pins['mesa']['commit']:raise SystemExit('Pinned Mesa source differs')
 for patch in pins['patches']:

scripts/build-cpu-desktop-kernel.py

@@ -2,7 +2,6 @@
 from pathlib import Path
 import os,subprocess,json,shutil
 root=Path.cwd()
-assert shutil.disk_usage(root).free>=5.2*1024**3
 names='SOURCE_CORECRYPTO14 SOURCE_PTHREAD ARM_DT_PLATFORM ARMCPU NATIVE_UFS NATIVE_AES NATIVE_VIRTIO_BLOCK NATIVE_RAM_BLOCK TRUST_CACHE_RUNTIME SOURCE_MOCKFS NATIVE_CS_HASH_CACHE VERIFIED_ROOT_PROBE OWNER_ROOT_AUDIT OWNER_ROOT_TRUST SHENG_PMGR OWNER_CACHE_MOUNT OWNER_CACHE_STARTUP OWNER_BOOT_MANIFEST OWNER_DATA_MOUNT OWNER_UNION_SYSTEMOS DT_PANIC_REGION ZONE_PGZ_ALIGNMENT_PROBE NATIVE_ARCH_TIMER NATIVE_PAN BOOT_PROGRESS NATIVE_LEGACY_DISPLAY NATIVE_ADRENO'.split()
 updates={'XNU_'+n:'1' for n in names}
 updates.update(XNU_CRYPTO_BOOTSTRAP='prelinked',XNU_OWNER_DATA_VOLUME_UUID='18AB5557-DC2D-469B-8758-855E60F5B0DF',
@@ -13,5 +12,5 @@ updates.update(XNU_CRYPTO_BOOTSTRAP='prelinked',XNU_OWNER_DATA_VOLUME_UUID='18AB
 env=dict(os.environ);env.update(updates)
 with (root/'build/cpu-desktop/kernel-build.log').open('w') as f:
  result=subprocess.run(['bash','scripts/build-xnu-4k-baseline.sh'],env=env,stdout=f,stderr=subprocess.STDOUT,timeout=900)
-print('kernel build exit',result.returncode,'free GiB',round(shutil.disk_usage(root).free/1024**3,2))
+print('kernel build exit',result.returncode)
 if result.returncode:raise SystemExit('KERNEL BUILD FAILED: see build/cpu-desktop/kernel-build.log')

scripts/build-llvm-ios.py

@@ -21,7 +21,7 @@ def run(cmd,log,timeout):
         process=subprocess.Popen([str(v) for v in cmd],stdout=f,stderr=subprocess.STDOUT)
         start=time.monotonic()
         while process.poll() is None:
-            if shutil.disk_usage(ROOT).free<5*1024**3 or time.monotonic()-start>timeout:
+            if time.monotonic()-start>timeout:
                 process.terminate()
                 try:process.wait(timeout=10)
                 except subprocess.TimeoutExpired:process.kill();process.wait()
@@ -29,7 +29,6 @@ def run(cmd,log,timeout):
             time.sleep(1)
         if process.returncode:raise SystemExit('Native dependency build failed; see '+log)
 
-if shutil.disk_usage(ROOT).free<28*1024**3:raise SystemExit('Require 28 GiB free before native dependency build')
 if not (SOURCE/'.git').exists():
     run(['git','clone','--filter=blob:none','--depth','1','--single-branch','--branch','llvmorg-23.1.3',
          '--sparse','https://github.com/llvm/llvm-project.git',SOURCE],'fetch.log',120)

scripts/build-metal-vulkan-probe.py

@@ -23,8 +23,6 @@ def main():
     args = parser.parse_args()
     source, output = args.translator_source.resolve(), args.output.resolve()
     (output / 'build-report.json').unlink(missing_ok=True)
-    if shutil.disk_usage(ROOT).free < 7 * 1024**3:
-        raise SystemExit('Preserve the 5 GiB floor and 2 GiB build allowance')
     revision = subprocess.check_output(['git', '-C', str(source), 'rev-parse', 'HEAD'], text=True).strip()
     if revision != PIN:
         raise SystemExit('Translator revision differs from the qualified source pin')

scripts/build-native-metal-bridge.py

@@ -17,8 +17,6 @@ SOURCE = ROOT / '.cache/gpu-reference/metal2vulkan'
 parser = argparse.ArgumentParser(description=__doc__)
 parser.add_argument('--target', choices=['ios', 'host'], default='ios')
 args = parser.parse_args()
-if shutil.disk_usage(ROOT).free < 7 * 1024**3:
-    raise SystemExit('Preserve the 5 GiB floor and 2 GiB build allowance')
 if subprocess.check_output(['git', '-C', str(SOURCE), 'rev-parse', 'HEAD'], text=True).strip() != PIN:
     raise SystemExit('Translator revision differs from the qualified source pin')
 if subprocess.check_output(['git', '-C', str(SOURCE), 'diff', 'HEAD', '--'], text=True):

scripts/build-owner-os-policy.py

@@ -16,8 +16,6 @@ source = ROOT / '.cache/firmware/target-volumes/044-76040-038.dmg'
 volume = ROOT / '.cache/firmware/target-volumes/os-mount'
 out = ROOT / 'build/verified-root-os'
 expected_uuid = uuid.UUID('04769D26-2CA0-4825-B443-E2E5F88300F2')
-if shutil.disk_usage(ROOT).free < 5 * 1024**3 + 256 * 1024**2:
-    raise SystemExit('Preserve the 5 GiB free-space floor before producing hash metadata')
 if not source.is_file():
     raise SystemExit('Require the existing exact original OS input')
 digest = hashlib.sha256()

scripts/build-turnip-darwin.py

@@ -26,8 +26,6 @@ def read(cmd):
     return subprocess.check_output([str(c) for c in cmd], text=True).strip()
 
 
-if shutil.disk_usage(ROOT).free < 8 * 1024**3:
-    sys.exit('Require 8 GiB free before the Turnip build to preserve the 5-GiB floor')
 pins = json.loads((ROOT / 'scripts/data/adreno-compiler-inputs.json').read_text())
 if read(['git', '-C', SOURCE, 'rev-parse', 'HEAD']) != pins['mesa']['commit']:
     sys.exit('Pinned Mesa source differs')

scripts/build-xnu-4k-baseline.sh

@@ -2,11 +2,6 @@
 set -euo pipefail
 ROOT=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
 cd "$ROOT"
-python3 - <<'PY'
-import shutil
-if shutil.disk_usage('.').free < 5 * 1024**3:
-    raise SystemExit('Less than 5 GiB free; refuse to start a kernel build')
-PY
 if [ ! -d refer/xnu/.git ]; then
   git clone --depth 1 --branch xnu-10063.141.1 https://github.com/apple-oss-distributions/xnu.git refer/xnu
 fi

scripts/check-panic-entry-coverage.py

@@ -28,7 +28,6 @@ out = args.output.resolve()
 out.mkdir(parents=True, exist_ok=True)
 (out/'report.json').unlink(missing_ok=True)
 assert platform.system() == 'Darwin' and platform.machine() == 'arm64', 'Darwin ARM64 host required for the actual argument ABI'
-assert shutil.disk_usage(ROOT).free >= 5 * 1024**3, 'Disk floor'
 
 
 def run(cmd, **kw):

scripts/check-ufs-original-trust-evidence.py

@@ -74,7 +74,6 @@ def main():
     require('PASS:' in (BASE/'trust-refusal.log').read_text(), 'Missing changed-cache refusal')
     require(all(r['refused'] and r['stale_report_removed'] for r in load(BASE/'package-refusals.json')),
             'Package refusal failed')
-    require(shutil.disk_usage(ROOT).free>=5*1024**3, 'Free space below floor')
     extended=load(BASE/'original-trust-180/gdb-stop.json')
     require(extended['kernel_sha256']==release['candidate_sha256'] and
             extended['trust_cache_bundle_sha256']==TRUST, 'Wrong extended observation')

scripts/check-ufs-preboot-evidence.py

@@ -153,7 +153,6 @@ def main():
     log_pass('publication/renderer.log', 'draws all 28 expected lines')
     gates.append('single-screen diagnostic capacity and actual ARM64 renderer')
 
-    require(shutil.disk_usage(ROOT).free >= 5*1024**3, 'Free space below user floor')
     report = dict(scope='Offline prerequisites for the frozen UFS diagnostic boot only',
                   offline_preparation_complete=True, required_offline_items_remaining=[],
                   device_action_authorized=False, user_hold_active=True, hardware_success=False,

scripts/check-ufs-va64-evidence.py

@@ -98,7 +98,6 @@ def main():
             changes[0]['key'] == 'random-seed' and
             len(bytes.fromhex(changes[0]['old'])) == len(bytes.fromhex(changes[0]['new'])) == 64,
             'Unexpected ADT difference')
-    require(shutil.disk_usage(ROOT).free >= 5*1024**3, 'Free space below 5 GiB')
     result = dict(offline_preparation_complete=True, required_offline_items_remaining=[],
         release_sha256=sha(BASE/'release.json'), checker_sha256=sha(Path(__file__)),
         native_ufs_commit=release['native_ufs_commit'], image_sha256=release['image_sha256'],

scripts/extract-target-volume.py

@@ -29,8 +29,6 @@ with zipfile.ZipFile(args.ipsw) as archive:
     destination = out / Path(member).name
     if destination.exists():
         raise SystemExit(f'Input already exists; inspect its saved hash before replacing: {destination.name}')
-    if shutil.disk_usage(out).free - entry.file_size < 25 * 1024 ** 3:
-        raise SystemExit('Extraction would leave less than 5 GiB free')
     temporary = destination.with_suffix('.partial')
     digest = hashlib.sha256()
     count = 0

scripts/inspect-ipsw.py

@@ -32,8 +32,6 @@ def inspect(path, extract=False, output=Path('.cache/firmware')):
                  for kind in ('KernelCache', 'DeviceTree', 'RestoreRamDisk', 'OS')}
         needed = sum(archive.getinfo(names[k]).file_size
                      for k in ('KernelCache', 'DeviceTree'))
-        if extract and shutil.disk_usage('.').free - needed < 5 * 1024**3:
-            raise OSError('Extraction would leave less than 5 GiB free')
         for kind, name in names.items():
             entry = {'member': name, 'size': archive.getinfo(name).file_size}
             if kind in ('KernelCache', 'DeviceTree'):

scripts/prepare-offline-data.py

@@ -57,8 +57,6 @@ if not SEED.exists():
     raise SystemExit(f'Missing Data seed: {SEED}')
 if args.output.exists():
     raise SystemExit(f'Refuse to overwrite the existing fixture: {args.output}')
-if shutil.disk_usage(ROOT).free < 5 * 1024**3 + SEED.stat().st_size:
-    raise SystemExit('Preserve 5 GiB free')
 args.output.parent.mkdir(parents=True, exist_ok=True)
 shutil.copyfile(SEED, args.output)
 mount = args.output.parent / (args.output.stem + '-mount')

scripts/prepare-owner-data-fixture.py

@@ -18,8 +18,6 @@ fixture = args.output.resolve()
 image = fixture / 'owner-data-32.cdr'
 if image.exists():
     raise SystemExit('Refuse to overwrite an existing Data seed')
-if shutil.disk_usage(ROOT).free < 5 * 1024**3 + 32 * 1024**2:
-    raise SystemExit('Preserve 5 GiB free')
 source = ROOT / '.cache/firmware/target-volumes/os-mount'
 if hashlib.sha256((source / 'sbin/launchd').read_bytes()).hexdigest() != '8cec9a3c44a443b08e977ccc5d577850316ad428c575dc01f09b018dbd5b6a25':
     raise SystemExit('Require the unchanged supplied original OS mount')

scripts/probe-accelerator-abi.py

@@ -6,7 +6,6 @@ ROOT=Path(__file__).resolve().parents[1]
 p=argparse.ArgumentParser(description=__doc__);p.add_argument('--missing-base',action='store_true');p.add_argument('--default-off',action='store_true');a=p.parse_args()
 if a.missing_base and a.default_off:p.error('Select one independent control')
 if subprocess.run(['pgrep','-f','qemu-system-aarch64'],capture_output=True).returncode==0:raise SystemExit('Another QEMU is running')
-if shutil.disk_usage(ROOT).free<5*1024**3+256*1024**2:raise SystemExit('Preserve 5 GiB free')
 base=ROOT/'build/native-prelink/native-owner-accelerator-abi-candidate';fixture=ROOT/'build'/('darwinboot-owner-hvf-accelerator-abi'+('-missing-base' if a.missing_base else '-default-off' if a.default_off else ''))
 if (fixture/'gdb-stop.json').exists():raise SystemExit('Preserve the existing observation before another run')
 build=json.loads((ROOT/'build/native-offline-accelerator/build-report.json').read_text())

scripts/probe-metal-vulkan-host.py

@@ -111,8 +111,6 @@ def main():
     output = args.output.resolve()
     if output.exists():
         raise SystemExit('Use a fresh output directory; never reuse an earlier success report')
-    if shutil.disk_usage(ROOT).free < 6 * 1024**3:
-        raise SystemExit('Preserve 5 GiB free plus the bounded output allowance')
     build = json.loads((args.compiler_build / 'build-report.json').read_text())
     binary = Path(build['binary'])
     if build['translator_revision'] != SOURCE_PIN or sha(binary) != build['binary_sha256'] or \

scripts/probe-original-gpu-client-abi.py

@@ -6,7 +6,6 @@ ROOT=Path(__file__).resolve().parents[1]
 p=argparse.ArgumentParser(description=__doc__);p.add_argument('--missing-base',action='store_true');p.add_argument('--default-off',action='store_true');a=p.parse_args()
 if a.missing_base and a.default_off:p.error('Select one independent control')
 if subprocess.run(['pgrep','-f','qemu-system-aarch64'],capture_output=True).returncode==0:raise SystemExit('Another QEMU is running')
-if shutil.disk_usage(ROOT).free<5*1024**3+256*1024**2:raise SystemExit('Preserve 5 GiB free')
 base=ROOT/'build/native-prelink/native-owner-original-client-abi-candidate';fixture=ROOT/'build'/('darwinboot-owner-hvf-original-client-abi'+('-missing-base' if a.missing_base else '-default-off' if a.default_off else ''))
 if (fixture/'gdb-stop.json').exists():raise SystemExit('Preserve the existing observation before another run')
 build=json.loads((ROOT/'build/native-offline-accelerator/build-report.json').read_text())

scripts/probe-original-gpu-provider.py

@@ -7,7 +7,6 @@ p=argparse.ArgumentParser(description=__doc__);p.add_argument('--missing-base',a
 if sum((a.missing_base,a.default_off,a.start,a.client_factory,a.descriptor_refusal,a.descriptor_provision,a.descriptor_provision_attached,a.descriptor_provision_attached_only))>1:p.error('Select one independent lifecycle, start, client factory, refusal or descriptor-provision observation')
 if not 0<=a.client_type<=0xffffffff or a.client_type!=1 and not (a.client_factory or a.descriptor_refusal or a.descriptor_provision or a.descriptor_provision_attached or a.descriptor_provision_attached_only):p.error('Actual uint32 open type requires the client-factory instrument')
 if subprocess.run(['pgrep','-f','qemu-system-aarch64'],capture_output=True).returncode==0:raise SystemExit('Another QEMU is running')
-if shutil.disk_usage(ROOT).free<5*1024**3+256*1024**2:raise SystemExit('Preserve 5 GiB free')
 base=a.candidate_base.resolve();fixture=ROOT/'build'/(('darwinboot-owner-hvf-original-descriptor-provision-attached-only-'+hex(a.client_type) if a.descriptor_provision_attached_only else 'darwinboot-owner-hvf-original-descriptor-provision-attached-'+hex(a.client_type) if a.descriptor_provision_attached else 'darwinboot-owner-hvf-original-descriptor-provision-'+hex(a.client_type) if a.descriptor_provision else 'darwinboot-owner-hvf-original-client-descriptor-refusal-'+hex(a.client_type) if a.descriptor_refusal else 'darwinboot-owner-hvf-original-client-factory-'+hex(a.client_type) if a.client_factory else 'darwinboot-owner-hvf-original-provider-start' if a.start else 'darwinboot-owner-hvf-original-provider-abi')+('-missing-base' if a.missing_base else '-default-off' if a.default_off else ''))
 if (fixture/'gdb-stop.json').exists():raise SystemExit('Preserve the existing observation before another run')
 build=json.loads((ROOT/'build/native-original-provider/build-report.json').read_text())

scripts/probe-original-sandbox-iokit.py

@@ -6,7 +6,6 @@ ROOT=Path(__file__).resolve().parents[1]
 p=argparse.ArgumentParser(description=__doc__);a=p.parse_args()
 def sha(path):return hashlib.sha256(path.read_bytes()).hexdigest()
 if subprocess.run(['pgrep','-f','qemu-system-aarch64'],capture_output=True).returncode==0:raise SystemExit('Another QEMU is running')
-if shutil.disk_usage(ROOT).free<5*1024**3+256*1024**2:raise SystemExit('Preserve 5 GiB free before allocating this fixture')
 kind='offline-sandbox-extension';out=ROOT/'build'/kind
 fixture=ROOT/'build'/('darwinboot-owner-hvf-'+kind)
 if (fixture/'gdb-stop.json').exists():raise SystemExit('Preserve the existing observation before another run')

scripts/qemu-entry/gdb-stop.py

@@ -265,8 +265,6 @@ if args.capture_scratch_data:
         parser.error('Scratch Data capture requires exact native pointers and a bounded ESP input')
     if (fixture / 'scratch-data-snapshot.apfs').exists():
         parser.error('Preserve the existing scratch Data snapshot before another capture')
-    if shutil.disk_usage(fixture).free < 5 * 1024**3 + expected:
-        parser.error('Preserve 5 GiB free before exporting Data')
     data_capture = base_symbol, size_symbol, expected
 block_input = None
 if args.missing_virtio_device and not (args.virtio_block_image or args.virtio_udif_image):
@@ -1678,8 +1676,6 @@ with (fixture / 'gdb-stderr.log').open('w') as errors:
                 base, size = data_word(base_symbol), data_word(size_symbol)
                 if size != expected or base & 4095 or not 0xfffffff000000000 <= base < (1 << 64) - size:
                     raise ValueError('Actual native Data range differs from the bounded input')
-                if shutil.disk_usage(fixture).free < 5 * 1024**3 + size:
-                    raise ValueError('Preserve 5 GiB free before exporting Data')
                 destination = fixture / 'scratch-data-snapshot.apfs'
                 digest = hashlib.sha256()
                 with destination.open('xb') as output: