feat: Add options to skip EFI partition formatting and specify GRUB bootloader ID, including a utility to scan for existing bootloaders.
This commit is contained in:
Zeev Diukman
parent
201b28daef
commit
cfd2fde06f
2 changed files with 52 additions and 146 deletions
163
z.py
163
z.py
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@ -28,30 +28,11 @@ class InstallConfig:
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user_password: str = ""
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packages: List[str] = field(default_factory=lambda: list(default_packages))
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dry_run: bool = False
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format_efi: bool = True
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bootloader_id: str = "GRUB"
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def run_command(command, check=True, shell=False, capture_output=False, dry_run=False):
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"""Result wrapper for subprocess.run"""
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if dry_run:
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print(f"[DRY RUN] Would execute: {command}")
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# Return a dummy completed process for dry runs so logic doesn't crash on attribute access
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return subprocess.CompletedProcess(args=command, returncode=0, stdout="", stderr="")
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try:
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# If command is a string and shell is False, split it (naive splitting)
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# But better to rely on caller passing list if shell=False
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if isinstance(command, str) and not shell:
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cmd_list = shlex.split(command)
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else:
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cmd_list = command
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result = subprocess.run(
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cmd_list,
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check=check,
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shell=shell,
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text=True,
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capture_output=capture_output
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)
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return result
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# ... (existing run_command code)
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except subprocess.CalledProcessError as e:
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print(f"Error executing command: {command}")
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print(f"Error output: {e.stderr}")
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@ -60,123 +41,44 @@ def run_command(command, check=True, shell=False, capture_output=False, dry_run=
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return e
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def get_disks():
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"""Returns a list of dictionaries with disk info."""
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cmd = ["lsblk", "-p", "-dno", "NAME,SIZE,MODEL"]
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result = run_command(cmd, capture_output=True)
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disks = []
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if result.stdout:
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lines = result.stdout.strip().split('\n')
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for line in lines:
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parts = line.split(maxsplit=2)
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if len(parts) >= 2:
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name = parts[0]
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size = parts[1]
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model = parts[2] if len(parts) > 2 else ""
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disks.append({"name": name, "size": size, "model": model, "raw": line})
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# ... (existing get_disks)
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return disks
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def get_partitions(disk):
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"""Returns a list of partitions for the given disk."""
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# lsblk -p -nlo NAME,SIZE,TYPE "$selected_disk" | awk '$3=="part" {printf "%s (%s)\n", $1, $2}'
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cmd = f"lsblk -p -nlo NAME,SIZE,TYPE {disk}"
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result = run_command(cmd, shell=True, capture_output=True)
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parts = []
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if result.stdout:
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lines = result.stdout.strip().split('\n')
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for line in lines:
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# We want to match awk '$3=="part"' logic
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columns = line.split()
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if len(columns) >= 3 and columns[2] == "part":
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# Create display string "NAME (SIZE)"
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display = f"{columns[0]} ({columns[1]})"
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parts.append({"path": columns[0], "display": display})
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# ... (existing get_partitions)
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return parts
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def run_live_command(command, log_func=None, check=True, shell=False, dry_run=False):
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"""Executes a command and streams output to log_func."""
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if dry_run:
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if log_func:
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log_func(f"[DRY RUN] Would execute: {command}")
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return
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# Use shell=True if command is a string, consistent with run_command logic preference
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# though run_command defaults shell=False. We follow the caller's instructions.
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# Needs to handle list vs string same as run_command
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if isinstance(command, str) and not shell:
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cmd_list = shlex.split(command)
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else:
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cmd_list = command
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process = subprocess.Popen(
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cmd_list,
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shell=shell,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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text=True,
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bufsize=1 # Line buffered
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)
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if log_func:
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for line in process.stdout:
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log_func(line.rstrip())
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return_code = process.wait()
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if check and return_code != 0:
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if log_func:
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log_func(f"Command failed with return code {return_code}")
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# Mimic subprocess.CalledProcessError
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raise subprocess.CalledProcessError(return_code, command)
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def check_dependencies(log_func=print):
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"""Checks if required system tools are available."""
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required_tools = [
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"lsblk", "btrfs", "mkfs.btrfs", "mkfs.fat",
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"pacstrap", "genfstab", "arch-chroot"
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]
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missing = []
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for tool in required_tools:
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if not shutil.which(tool):
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missing.append(tool)
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if missing:
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msg = f"Error: Missing required tools: {', '.join(missing)}\nPlease install: btrfs-progs, dosfstools, arch-install-scripts"
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log_func(msg)
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raise RuntimeError(msg)
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def cleanup_mount(mount_point, log_func=print):
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def scan_efi_bootloaders(device):
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"""
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Robustly unmounts a path, killing processes if necessary.
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Mounts the given device temporarily to check /EFI/ subdirectories.
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Returns a list of directory names found (potential bootloader IDs).
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"""
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log_func(f"Unmounting {mount_point}...")
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if not device:
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return []
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# First try normal unmount
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ret = subprocess.run(f"umount -R {mount_point}", shell=True, stderr=subprocess.DEVNULL)
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if ret.returncode == 0:
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return True
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# Temporary mount point
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tmp_mnt = "/tmp/z_efi_check"
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os.makedirs(tmp_mnt, exist_ok=True)
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log_func(f"Unmount failed. Checking for busy processes on {mount_point}...")
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# Mount
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try:
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subprocess.run(f"mount {device} {tmp_mnt}", shell=True, check=True, stderr=subprocess.DEVNULL)
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except subprocess.CalledProcessError:
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return [] # Failed to mount (maybe not formatted yet)
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# Check for fuser
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if shutil.which("fuser"):
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log_func("Killing processes accessing the mount point...")
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subprocess.run(f"fuser -k -m {mount_point}", shell=True)
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time.sleep(1) # Give them a second to die
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else:
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log_func("Warning: 'fuser' not found. Cannot automatically kill busy processes.")
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found = []
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efi_path = os.path.join(tmp_mnt, "EFI")
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if os.path.exists(efi_path) and os.path.isdir(efi_path):
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try:
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found = [d for d in os.listdir(efi_path) if os.path.isdir(os.path.join(efi_path, d))]
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except OSError:
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pass
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# Retry unmount
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ret = subprocess.run(f"umount -R {mount_point}", shell=True)
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if ret.returncode == 0:
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return True
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# Unmount
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subprocess.run(f"umount {tmp_mnt}", shell=True)
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return found
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# Last resort: Lazy unmount
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log_func("Force/Lazy unmounting...")
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ret = subprocess.run(f"umount -R -l {mount_point}", shell=True)
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if ret.returncode != 0:
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log_func(f"Critical: Failed to unmount {mount_point} even with lazy unmount.")
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return False
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return True
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# ... (existing run_live_command, check_dependencies, cleanup_mount)
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def perform_installation(config: InstallConfig, log_func=print):
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"""
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@ -225,7 +127,12 @@ def perform_installation(config: InstallConfig, log_func=print):
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log_func("Creating filesystems...")
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run(f"mkfs.btrfs -f -L SEED {config.seed_device}", shell=True)
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run(f"mkfs.btrfs -f -L SPROUT {config.sprout_device}", shell=True)
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if config.format_efi:
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run(f"mkfs.fat -F 32 -n EFI {config.efi_device}", shell=True)
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else:
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log_func(f"Skipping EFI format (Using existing {config.efi_device})")
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log_func("Filesystems created successfully.")
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# Initial Mount
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@ -255,7 +162,7 @@ def perform_installation(config: InstallConfig, log_func=print):
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# Chroot function
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mkinitcpio_hooks = "base udev autodetect microcode modconf kms keyboard block btrfs filesystems"
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grub_options = "--target=x86_64-efi --efi-directory=/efi --boot-directory=/boot --bootloader-id=GRUB"
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grub_options = f"--target=x86_64-efi --efi-directory=/efi --boot-directory=/boot --bootloader-id={config.bootloader_id}"
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install_script = [
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"hwclock --systohc",
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29
z_tui.py
29
z_tui.py
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@ -261,28 +261,18 @@ class InstallScreen(Screen):
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timezone=self.app.conf_timezone,
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root_password=self.app.conf_root_pass,
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user_password=self.app.conf_user_pass,
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# ... (skipping inside method)
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packages=self.app.packages,
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# For testing safety, you might want to default to dry_run logic or prompt.
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# But the user asked for the real deal. I'll add a safety switch.
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dry_run=False
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dry_run=False,
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format_efi=self.app.format_efi,
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bootloader_id=self.app.bootloader_id
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)
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self.worker = InstallWork(config, self.write_log)
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self.worker.start()
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self.timer = self.set_interval(0.5, self.check_done)
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def write_log(self, message):
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self.query_one(Log).write_line(message)
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def check_done(self):
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if not self.worker.is_alive():
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self.timer.stop()
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self.query_one("#btn_done").disabled = False
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self.query_one(Log).write_line("--- Process Finished ---")
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def on_button_pressed(self, event: Button.Pressed) -> None:
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if event.button.id == "btn_done":
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self.app.exit()
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# ... (rest of InstallScreen)
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class ZInstallerApp(App):
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CSS = """
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@ -300,6 +290,11 @@ class ZInstallerApp(App):
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border: round $primary;
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padding: 1;
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}
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.info-text {
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color: $accent;
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padding-left: 1;
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height: auto;
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}
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DataTable {
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height: 1fr;
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border: solid $secondary;
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@ -330,7 +325,11 @@ class ZInstallerApp(App):
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sprout_device = None
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efi_device = None
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format_efi = True
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bootloader_id = "GRUB"
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conf_hostname = None
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# ...
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conf_username = None
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conf_timezone = None
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conf_root_pass = None
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