Send patches - preferably formatted by git format-patch - to patches at archlinux32 dot org.
summaryrefslogtreecommitdiff
path: root/archinstall/lib/installer.py
blob: a193a812a0c1dd4ea25f9437506effc18f23cff9 (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
import os, stat, time

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, partition, boot_partition, *, base_packages='base base-devel linux linux-firmware efibootmgr nano', profile=None, mountpoint='/mnt', hostname='ArchInstalled'):
		self.profile = profile
		self.hostname = hostname
		self.mountpoint = mountpoint
		self.init_time = time.strftime('%Y-%m-%d_%H-%M-%S')
		self.milliseconds = int(str(time.time()).split('.')[1])

		self.helper_flags = {
			'bootloader' : False,
			'base' : False,
			'user' : False # Root counts as a user, if additional users are skipped.
		}

		self.base_packages = base_packages.split(' ')
		storage['session'] = self

		self.partition = partition
		self.boot_partition = boot_partition

	def log(self, *args, level=LOG_LEVELS.Debug, file=None, **kwargs):
		if not file:
			if 'logfile' not in storage:
				log_root = os.path.join(os.path.expanduser('~/'), '.cache/archinstall')
				if not os.path.isdir(log_root):
					os.makedirs(log_root)

				storage['logfile'] = f"{log_root}/install-session_{self.init_time}.{self.milliseconds}.log"

			file = storage['logfile']

		log(*args, level=level, file=file, **kwargs)

	def __enter__(self, *args, **kwargs):
		self.partition.mount(self.mountpoint)
		os.makedirs(f'{self.mountpoint}/boot', exist_ok=True)
		self.boot_partition.mount(f'{self.mountpoint}/boot')
		return self

	def __exit__(self, *args, **kwargs):
		# b''.join(sys_command(f'sync')) # No need to, since the underlaying 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]:
			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)
			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: {log_path}", level=LOG_LEVELS.Warning)
			self.log(f"Submit this zip file as an issue to https://github.com/Torxed/archinstall/issues", level=LOG_LEVELS.Warning)
			return False

	def mount(self, partition, mountpoint, create_mountpoint=True):
		if create_mountpoint and not os.path.isdir(f'{self.mountpoint}{mountpoint}'):
			os.makedirs(f'{self.mountpoint}{mountpoint}')
			
		partition.mount(f'{self.mountpoint}{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.mountpoint} {" ".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.mountpoint}/etc/pacman.d/mirrorlist')

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

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

	def set_hostname(self, hostname=None, *args, **kwargs):
		if not hostname: hostname = self.hostname
		with open(f'{self.mountpoint}/etc/hostname', 'w') as fh:
			fh.write(self.hostname + '\n')

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

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

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

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

		o = b''.join(sys_command(f'/usr/bin/arch-chroot {self.mountpoint} ln -s /usr/share/zoneinfo/{zone} /etc/localtime'))
		return True

	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, service):
		self.log(f'Enabling service {service}', level=LOG_LEVELS.Info)
		return self.arch_chroot(f'systemctl enable {service}').exit_code == 0

	def run_command(self, cmd, *args, **kwargs):
		return sys_command(f'/usr/bin/arch-chroot {self.mountpoint} {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.mountpoint}/etc/systemd/network/10-{nic}.network", "a") as netconf:
			netconf.write(str(conf))

	def minimal_installation(self):
		## Add nessecary 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.
		if self.partition.filesystem == 'btrfs':
		#if self.partition.encrypted:
			self.base_packages.append('btrfs-progs')
        if self.part.filesystem == 'xfs':
            self.base_packages.append('xfsprogs')
		self.pacstrap(self.base_packages)
		#self.genfstab()

		with open(f"{self.mountpoint}/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.mountpoint}/etc/localtime')
		#sys_command(f'/usr/bin/arch-chroot {self.mountpoint} ln -s /usr/share/zoneinfo/{localtime} /etc/localtime')
		#sys_command('/usr/bin/arch-chroot /mnt hwclock --hctosys --localtime')
		self.set_hostname()
		self.set_locale('en_US.UTF-8')

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

		if self.partition.filesystem == 'btrfs':
			with open(f'{self.mountpoint}/etc/mkinitcpio.conf', 'w') as mkinit:
				## TODO: Don't replace it, in case some update in the future actually adds something.
				mkinit.write('MODULES=(btrfs)\n')
				mkinit.write('BINARIES=(/usr/bin/btrfs)\n')
				mkinit.write('FILES=()\n')
				mkinit.write('HOOKS=(base udev autodetect modconf block encrypt filesystems keyboard fsck)\n')
			sys_command(f'/usr/bin/arch-chroot {self.mountpoint} mkinitcpio -p linux')

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

	def add_bootloader(self, bootloader='systemd-bootctl'):
		self.log(f'Adding bootloader {bootloader} to {self.boot_partition}', level=LOG_LEVELS.Info)

		if bootloader == 'systemd-bootctl':
			o = b''.join(sys_command(f'/usr/bin/arch-chroot {self.mountpoint} bootctl --no-variables --path=/boot install'))
			with open(f'{self.mountpoint}/boot/loader/loader.conf', 'w') as loader:
				loader.write('default arch\n')
				loader.write('timeout 5\n')

			## 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()
			with open(f'{self.mountpoint}/boot/loader/entries/arch.conf', 'w') as entry:
				entry.write('title Arch Linux\n')
				entry.write('linux /vmlinuz-linux\n')
				entry.write('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 self.partition.encrypted:
					for root, folders, uids in os.walk('/dev/disk/by-uuid'):
						for uid in uids:
							real_path = os.path.realpath(os.path.join(root, uid))
							if not os.path.basename(real_path) == os.path.basename(self.partition.real_device): continue

							entry.write(f'options cryptdevice=UUID={uid}:luksdev root=/dev/mapper/luksdev rw intel_pstate=no_hwp\n')

							self.helper_flags['bootloader'] = bootloader
							return True
						break
				else:
					for root, folders, uids in os.walk('/dev/disk/by-partuuid'):
						for uid in uids:
							real_path = os.path.realpath(os.path.join(root, uid))
							if not os.path.basename(real_path) == os.path.basename(self.partition.path): continue

							entry.write(f'options root=PARTUUID={uid} rw intel_pstate=no_hwp\n')

							self.helper_flags['bootloader'] = bootloader
							return True
						break
			raise RequirementError(f"Could not identify the UUID of {self.partition}, there for {self.mountpoint}/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):
		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.mountpoint}/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.mountpoint} 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.mountpoint} 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.mountpoint} sh -c \"echo '{user}:{password}' | chpasswd\""))
		pass

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