Send patches - preferably formatted by git format-patch - to patches at archlinux32 dot org.
summaryrefslogtreecommitdiff
path: root/archinstall/lib/installer.py
blob: 4ff9e80ab611a3ce2de9be6eabbe1a82425f949b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
import os, stat, time, shutil, pathlib

from .exceptions import *
from .disk import *
from .general import *
from .user_interaction import *
from .profiles import Profile
from .mirrors import *
from .systemd import Networkd
from .output import log, LOG_LEVELS
from .storage import storage

class Installer():
	"""
	`Installer()` is the wrapper for most basic installation steps.
	It also wraps :py:func:`~archinstall.Installer.pacstrap` among other things.

	:param partition: Requires a partition as the first argument, this is
	    so that the installer can mount to `mountpoint` and strap packages there.
	:type partition: class:`archinstall.Partition`
	
	:param boot_partition: There's two reasons for needing a boot partition argument,
	    The first being so that `mkinitcpio` can place the `vmlinuz` kernel at the right place
	    during the `pacstrap` or `linux` and the base packages for a minimal installation.
	    The second being when :py:func:`~archinstall.Installer.add_bootloader` is called,
	    A `boot_partition` must be known to the installer before this is called.
	:type boot_partition: class:`archinstall.Partition`

	:param profile: A profile to install, this is optional and can be called later manually.
	    This just simplifies the process by not having to call :py:func:`~archinstall.Installer.install_profile` later on.
	:type profile: str, optional
	
	:param hostname: The given /etc/hostname for the machine.
	:type hostname: str, optional

	"""
	def __init__(self, target, *, base_packages='base base-devel linux linux-firmware efibootmgr'):
		self.target = target
		self.init_time = time.strftime('%Y-%m-%d_%H-%M-%S')
		self.milliseconds = int(str(time.time()).split('.')[1])

		self.helper_flags = {
			'base' : False,
			'bootloader' : False
		}

		self.base_packages = base_packages.split(' ') if type(base_packages) is str else base_packages
		self.post_base_install = []

		storage['session'] = self
		self.partitions = get_partitions_in_use(self.target)

	def log(self, *args, level=LOG_LEVELS.Debug, **kwargs):
		"""
		installer.log() wraps output.log() mainly to set a default log-level for this install session.
		Any manual override can be done per log() call.
		"""
		log(*args, level=level, **kwargs)

	def __enter__(self, *args, **kwargs):
		return self

	def __exit__(self, *args, **kwargs):
		# b''.join(sys_command(f'sync')) # No need to, since the underlying fs() object will call sync.
		# TODO: https://stackoverflow.com/questions/28157929/how-to-safely-handle-an-exception-inside-a-context-manager

		if len(args) >= 2 and args[1]:
			#self.log(self.trace_log.decode('UTF-8'), level=LOG_LEVELS.Debug)
			self.log(args[1], level=LOG_LEVELS.Error, fg='red')

			self.sync_log_to_install_medium()

			# We avoid printing /mnt/<log path> because that might confuse people if they note it down
			# and then reboot, and a identical log file will be found in the ISO medium anyway.
			print(f"[!] A log file has been created here: {os.path.join(storage['LOG_PATH'], storage['LOG_FILE'])}")
			print(f"    Please submit this issue (and file) to https://github.com/archlinux/archinstall/issues")
			raise args[1]

		self.genfstab()

		if not (missing_steps := self.post_install_check()):
			self.log('Installation completed without any errors. You may now reboot.', bg='black', fg='green', level=LOG_LEVELS.Info)
			self.sync_log_to_install_medium()
			return True
		else:
			self.log('Some required steps were not successfully installed/configured before leaving the installer:', bg='black', fg='red', level=LOG_LEVELS.Warning)
			for step in missing_steps:
				self.log(f' - {step}', bg='black', fg='red', level=LOG_LEVELS.Warning)
            
			self.log(f"Detailed error logs can be found at: {storage['LOG_PATH']}", level=LOG_LEVELS.Warning)
			self.log(f"Submit this zip file as an issue to https://github.com/archlinux/archinstall/issues", level=LOG_LEVELS.Warning)
               
			self.sync_log_to_install_medium()
			return False

	def sync_log_to_install_medium(self):
		# Copy over the install log (if there is one) to the install medium if
		# at least the base has been strapped in, otherwise we won't have a filesystem/structure to copy to.
		if self.helper_flags.get('base-strapped', False) is True:
			if (filename := storage.get('LOG_FILE', None)):
				absolute_logfile = os.path.join(storage.get('LOG_PATH', './'), filename)

				if not os.path.isdir(f"{self.target}/{os.path.dirname(absolute_logfile)}"):
					os.makedirs(f"{self.target}/{os.path.dirname(absolute_logfile)}")
				
				shutil.copy2(absolute_logfile, f"{self.target}/{absolute_logfile}")

		return True

	def mount(self, partition, mountpoint, create_mountpoint=True):
		if create_mountpoint and not os.path.isdir(f'{self.target}{mountpoint}'):
			os.makedirs(f'{self.target}{mountpoint}')
			
		partition.mount(f'{self.target}{mountpoint}')

	def post_install_check(self, *args, **kwargs):
		return [step for step, flag in self.helper_flags.items() if flag is False]

	def pacstrap(self, *packages, **kwargs):
		if type(packages[0]) in (list, tuple): packages = packages[0]
		self.log(f'Installing packages: {packages}', level=LOG_LEVELS.Info)

		if (sync_mirrors := sys_command('/usr/bin/pacman -Syy')).exit_code == 0:
			if (pacstrap := sys_command(f'/usr/bin/pacstrap {self.target} {" ".join(packages)}', **kwargs)).exit_code == 0:
				return True
			else:
				self.log(f'Could not strap in packages: {pacstrap.exit_code}', level=LOG_LEVELS.Info)
		else:
			self.log(f'Could not sync mirrors: {sync_mirrors.exit_code}', level=LOG_LEVELS.Info)

	def set_mirrors(self, mirrors):
		return use_mirrors(mirrors, destination=f'{self.target}/etc/pacman.d/mirrorlist')

	def genfstab(self, flags='-pU'):
		self.log(f"Updating {self.target}/etc/fstab", level=LOG_LEVELS.Info)
		
		fstab = sys_command(f'/usr/bin/genfstab {flags} {self.target}').trace_log
		with open(f"{self.target}/etc/fstab", 'ab') as fstab_fh:
			fstab_fh.write(fstab)

		if not os.path.isfile(f'{self.target}/etc/fstab'):
			raise RequirementError(f'Could not generate fstab, strapping in packages most likely failed (disk out of space?)\n{fstab}')
		
		return True

	def set_hostname(self, hostname :str, *args, **kwargs):
		with open(f'{self.target}/etc/hostname', 'w') as fh:
			fh.write(hostname + '\n')

	def set_locale(self, locale, encoding='UTF-8', *args, **kwargs):
		if not len(locale): return True

		with open(f'{self.target}/etc/locale.gen', 'a') as fh:
			fh.write(f'{locale}.{encoding} {encoding}\n')
		with open(f'{self.target}/etc/locale.conf', 'w') as fh:
			fh.write(f'LANG={locale}.{encoding}\n')

		return True if sys_command(f'/usr/bin/arch-chroot {self.target} locale-gen').exit_code == 0 else False

	def set_timezone(self, zone, *args, **kwargs):
		if not zone: return True
		if not len(zone): return True # Redundant

		if (pathlib.Path("/usr")/"share"/"zoneinfo"/zone).exists():
			(pathlib.Path(self.target)/"etc"/"localtime").unlink(missing_ok=True)
			sys_command(f'/usr/bin/arch-chroot {self.target} ln -s /usr/share/zoneinfo/{zone} /etc/localtime')
			return True
		else:
			self.log(
				f"Time zone {zone} does not exist, continuing with system default.",
				level=LOG_LEVELS.Warning,
				fg='red'
			)

	def activate_ntp(self):
		self.log(f'Installing and activating NTP.', level=LOG_LEVELS.Info)
		if self.pacstrap('ntp'):
			if self.enable_service('ntpd'):
				return True

	def enable_service(self, *services):
		for service in services:
			self.log(f'Enabling service {service}', level=LOG_LEVELS.Info)
			if (output := self.arch_chroot(f'systemctl enable {service}')).exit_code != 0:
				raise ServiceException(f"Unable to start service {service}: {output}")

	def run_command(self, cmd, *args, **kwargs):
		return sys_command(f'/usr/bin/arch-chroot {self.target} {cmd}')

	def arch_chroot(self, cmd, *args, **kwargs):
		return self.run_command(cmd)

	def configure_nic(self, nic, dhcp=True, ip=None, gateway=None, dns=None, *args, **kwargs):
		if dhcp:
			conf = Networkd(Match={"Name": nic}, Network={"DHCP": "yes"})
		else:
			assert ip

			network = {"Address": ip}
			if gateway:
				network["Gateway"] = gateway
			if dns:
				assert type(dns) == list
				network["DNS"] = dns

			conf = Networkd(Match={"Name": nic}, Network=network)
		
		with open(f"{self.target}/etc/systemd/network/10-{nic}.network", "a") as netconf:
			netconf.write(str(conf))

	def copy_ISO_network_config(self, enable_services=False):
		# Copy (if any) iwd password and config files
		if os.path.isdir('/var/lib/iwd/'):
			if (psk_files := glob.glob('/var/lib/iwd/*.psk')):
				if not os.path.isdir(f"{self.target}/var/lib/iwd"):
					os.makedirs(f"{self.target}/var/lib/iwd")

				if enable_services:
					# If we haven't installed the base yet (function called pre-maturely)
					if self.helper_flags.get('base', False) is False:
						self.base_packages.append('iwd')
						# This function will be called after minimal_installation() 
						# as a hook for post-installs. This hook is only needed if
						# base is not installed yet.
						def post_install_enable_iwd_service(*args, **kwargs):
							self.enable_service('iwd')

						self.post_base_install.append(post_install_enable_iwd_service)
					# Otherwise, we can go ahead and add the required package
					# and enable it's service:
					else:
						self.pacstrap('iwd')
						self.enable_service('iwd')

				for psk in psk_files:
					shutil.copy2(psk, f"{self.target}/var/lib/iwd/{os.path.basename(psk)}")

		# Copy (if any) systemd-networkd config files
		if (netconfigurations := glob.glob('/etc/systemd/network/*')):
			if not os.path.isdir(f"{self.target}/etc/systemd/network/"):
				os.makedirs(f"{self.target}/etc/systemd/network/")

			for netconf_file in netconfigurations:
				shutil.copy2(netconf_file, f"{self.target}/etc/systemd/network/{os.path.basename(netconf_file)}")

			if enable_services:
				# If we haven't installed the base yet (function called pre-maturely)
				if self.helper_flags.get('base', False) is False:
					def post_install_enable_networkd_resolved(*args, **kwargs):
						self.enable_service('systemd-networkd', 'systemd-resolved')
					self.post_base_install.append(post_install_enable_networkd_resolved)
				# Otherwise, we can go ahead and enable the services
				else:
					self.enable_service('systemd-networkd', 'systemd-resolved')
					

		return True

	def detect_encryption(self, partition):
		if partition.encrypted:
			return partition
		elif partition.parent not in partition.path and Partition(partition.parent, None, autodetect_filesystem=True).filesystem == 'crypto_LUKS':
			return Partition(partition.parent, None, autodetect_filesystem=True)
		
		return False

	def minimal_installation(self):
		## Add necessary packages if encrypting the drive
		## (encrypted partitions default to btrfs for now, so we need btrfs-progs)
		## TODO: Perhaps this should be living in the function which dictates
		##       the partitioning. Leaving here for now.
		MODULES = []
		BINARIES = []
		FILES = []
		HOOKS = ["base", "udev", "autodetect", "keyboard", "keymap", "modconf", "block", "filesystems", "fsck"]

		for partition in self.partitions:
			if partition.filesystem == 'btrfs':
			#if partition.encrypted:
				self.base_packages.append('btrfs-progs')
			if partition.filesystem == 'xfs':
				self.base_packages.append('xfsprogs')
			if partition.filesystem == 'f2fs':
				self.base_packages.append('f2fs-tools')

			# Configure mkinitcpio to handle some specific use cases.
			if partition.filesystem == 'btrfs':
				if 'btrfs' not in MODULES:
					MODULES.append('btrfs')
				if '/usr/bin/btrfs-progs' not in BINARIES:
					BINARIES.append('/usr/bin/btrfs')

			if self.detect_encryption(partition):
				if 'encrypt' not in HOOKS:
					HOOKS.insert(HOOKS.index('filesystems'), 'encrypt')

		self.pacstrap(self.base_packages)
		self.helper_flags['base-strapped'] = True
		#self.genfstab()

		with open(f"{self.target}/etc/fstab", "a") as fstab:
			fstab.write(
				"\ntmpfs /tmp tmpfs defaults,noatime,mode=1777 0 0\n"
			)  # Redundant \n at the start? who knows?

		## TODO: Support locale and timezone
		#os.remove(f'{self.target}/etc/localtime')
		#sys_command(f'/usr/bin/arch-chroot {self.target} ln -s /usr/share/zoneinfo/{localtime} /etc/localtime')
		#sys_command('/usr/bin/arch-chroot /mnt hwclock --hctosys --localtime')
		self.set_hostname('archinstall')
		self.set_locale('en_US')

		# TODO: Use python functions for this
		sys_command(f'/usr/bin/arch-chroot {self.target} chmod 700 /root')

		with open(f'{self.target}/etc/mkinitcpio.conf', 'w') as mkinit:
			mkinit.write(f"MODULES=({' '.join(MODULES)})\n")
			mkinit.write(f"BINARIES=({' '.join(BINARIES)})\n")
			mkinit.write(f"FILES=({' '.join(FILES)})\n")
			mkinit.write(f"HOOKS=({' '.join(HOOKS)})\n")
		sys_command(f'/usr/bin/arch-chroot {self.target} mkinitcpio -p linux')

		self.helper_flags['base'] = True

		# Run registered post-install hooks
		for function in self.post_base_install:
			self.log(f"Running post-installation hook: {function}", level=LOG_LEVELS.Info)
			function(self)

		return True

	def add_bootloader(self, bootloader='systemd-bootctl'):
		boot_partition = None
		root_partition = None
		for partition in self.partitions:
			if partition.mountpoint == self.target+'/boot':
				boot_partition = partition
			elif partition.mountpoint == self.target:
				root_partition = partition

		self.log(f'Adding bootloader {bootloader} to {boot_partition}', level=LOG_LEVELS.Info)

		if bootloader == 'systemd-bootctl':
			# TODO: Ideally we would want to check if another config
			# points towards the same disk and/or partition.
			# And in which case we should do some clean up.

			# Install the boot loader
			sys_command(f'/usr/bin/arch-chroot {self.target} bootctl --no-variables --path=/boot install')

			# Modify or create a loader.conf
			if os.path.isfile(f'{self.target}/boot/loader/loader.conf'):
				with open(f'{self.target}/boot/loader/loader.conf', 'r') as loader:
					loader_data = loader.read().split('\n')
			else:
				loader_data = [
					f"default {self.init_time}",
					f"timeout 5"
				]
			
			with open(f'{self.target}/boot/loader/loader.conf', 'w') as loader:
				for line in loader_data:
					if line[:8] == 'default ':
						loader.write(f'default {self.init_time}\n')
					else:
						loader.write(f"{line}")

			## For some reason, blkid and /dev/disk/by-uuid are not getting along well.
			## And blkid is wrong in terms of LUKS.
			#UUID = sys_command('blkid -s PARTUUID -o value {drive}{partition_2}'.format(**args)).decode('UTF-8').strip()

			# Setup the loader entry
			with open(f'{self.target}/boot/loader/entries/{self.init_time}.conf', 'w') as entry:
				entry.write(f'# Created by: archinstall\n')
				entry.write(f'# Created on: {self.init_time}\n')
				entry.write(f'title Arch Linux\n')
				entry.write(f'linux /vmlinuz-linux\n')
				entry.write(f'initrd /initramfs-linux.img\n')
				## blkid doesn't trigger on loopback devices really well,
				## so we'll use the old manual method until we get that sorted out.


				if (real_device := self.detect_encryption(root_partition)):
					# TODO: We need to detect if the encrypted device is a whole disk encryption,
					#       or simply a partition encryption. Right now we assume it's a partition (and we always have)
					log(f"Identifying root partition by PART-UUID on {real_device}: '{real_device.uuid}'.", level=LOG_LEVELS.Debug)
					entry.write(f'options cryptdevice=PARTUUID={real_device.uuid}:luksdev root=/dev/mapper/luksdev rw intel_pstate=no_hwp\n')
				else:
					log(f"Identifying root partition by PART-UUID on {root_partition}, looking for '{root_partition.uuid}'.", level=LOG_LEVELS.Debug)
					entry.write(f'options root=PARTUUID={root_partition.uuid} rw intel_pstate=no_hwp\n')

				self.helper_flags['bootloader'] = bootloader
				return True

			raise RequirementError(f"Could not identify the UUID of {root_partition}, there for {self.target}/boot/loader/entries/arch.conf will be broken until fixed.")
		else:
			raise RequirementError(f"Unknown (or not yet implemented) bootloader added to add_bootloader(): {bootloader}")

	def add_additional_packages(self, *packages):
		return self.pacstrap(*packages)

	def install_profile(self, profile):
		# TODO: Replace this with a import archinstall.session instead in the profiles.
		# The tricky thing with doing the import archinstall.session instead is that
		# profiles might be run from a different chroot, and there's no way we can
		# guarantee file-path safety when accessing the installer object that way.
		# Doing the __builtins__ replacement, ensures that the global variable "installation"
		# is always kept up to date. It's considered a nasty hack - but it's a safe way
		# of ensuring 100% accuracy of archinstall session variables.
		__builtins__['installation'] = self

		if type(profile) == str:
			profile = Profile(self, profile)

		self.log(f'Installing network profile {profile}', level=LOG_LEVELS.Info)
		return profile.install()

	def enable_sudo(self, entity :str, group=False):
		self.log(f'Enabling sudo permissions for {entity}.', level=LOG_LEVELS.Info)
		with open(f'{self.target}/etc/sudoers', 'a') as sudoers:
			sudoers.write(f'{"%" if group else ""}{entity} ALL=(ALL) ALL\n')
		return True

	def user_create(self, user :str, password=None, groups=[], sudo=False):
		self.log(f'Creating user {user}', level=LOG_LEVELS.Info)
		o = b''.join(sys_command(f'/usr/bin/arch-chroot {self.target} useradd -m -G wheel {user}'))
		if password:
			self.user_set_pw(user, password)

		if groups:
			for group in groups:
				o = b''.join(sys_command(f'/usr/bin/arch-chroot {self.target} gpasswd -a {user} {group}'))

		if sudo and self.enable_sudo(user):
			self.helper_flags['user'] = True

	def user_set_pw(self, user, password):
		self.log(f'Setting password for {user}', level=LOG_LEVELS.Info)

		if user == 'root':
			# This means the root account isn't locked/disabled with * in /etc/passwd
			self.helper_flags['user'] = True

		o = b''.join(sys_command(f"/usr/bin/arch-chroot {self.target} sh -c \"echo '{user}:{password}' | chpasswd\""))
		pass

	def set_keyboard_language(self, language):
		if len(language.strip()):
			with open(f'{self.target}/etc/vconsole.conf', 'w') as vconsole:
				vconsole.write(f'KEYMAP={language}\n')
				vconsole.write(f'FONT=lat9w-16\n')
		return True