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
|
import getpass, time, json, sys, signal, os
import archinstall
from archinstall.lib.hardware import hasUEFI
"""
This signal-handler chain (and global variable)
is used to trigger the "Are you sure you want to abort?" question further down.
It might look a bit odd, but have a look at the line: "if SIG_TRIGGER:"
"""
SIG_TRIGGER = False
def kill_handler(sig, frame):
print()
exit(0)
def sig_handler(sig, frame):
global SIG_TRIGGER
SIG_TRIGGER = True
signal.signal(signal.SIGINT, kill_handler)
original_sigint_handler = signal.getsignal(signal.SIGINT)
signal.signal(signal.SIGINT, sig_handler)
def ask_user_questions():
"""
First, we'll ask the user for a bunch of user input.
Not until we're satisfied with what we want to install
will we continue with the actual installation steps.
"""
if not archinstall.arguments.get('keyboard-language', None):
archinstall.arguments['keyboard-language'] = archinstall.select_language(archinstall.list_keyboard_languages()).strip()
# Before continuing, set the preferred keyboard layout/language in the current terminal.
# This will just help the user with the next following questions.
if len(archinstall.arguments['keyboard-language']):
archinstall.set_keyboard_language(archinstall.arguments['keyboard-language'])
# Set which region to download packages from during the installation
if not archinstall.arguments.get('mirror-region', None):
archinstall.arguments['mirror-region'] = archinstall.select_mirror_regions(archinstall.list_mirrors())
else:
selected_region = archinstall.arguments['mirror-region']
archinstall.arguments['mirror-region'] = {selected_region : archinstall.list_mirrors()[selected_region]}
# Ask which harddrive/block-device we will install to
if archinstall.arguments.get('harddrive', None):
archinstall.arguments['harddrive'] = archinstall.BlockDevice(archinstall.arguments['harddrive'])
else:
archinstall.arguments['harddrive'] = archinstall.select_disk(archinstall.all_disks())
# Perform a quick sanity check on the selected harddrive.
# 1. Check if it has partitions
# 3. Check that we support the current partitions
# 2. If so, ask if we should keep them or wipe everything
if archinstall.arguments['harddrive'].has_partitions():
archinstall.log(f"{archinstall.arguments['harddrive']} contains the following partitions:", fg='yellow')
# We curate a list pf supported paritions
# and print those that we don't support.
partition_mountpoints = {}
for partition in archinstall.arguments['harddrive']:
try:
if partition.filesystem_supported():
archinstall.log(f" {partition}")
partition_mountpoints[partition] = None
except archinstall.UnknownFilesystemFormat as err:
archinstall.log(f" {partition} (Filesystem not supported)", fg='red')
# We then ask what to do with the paritions.
if (option := archinstall.ask_for_disk_layout()) == 'abort':
archinstall.log(f"Safely aborting the installation. No changes to the disk or system has been made.")
exit(1)
elif option == 'keep-existing':
archinstall.arguments['harddrive'].keep_partitions = True
archinstall.log(f" ** You will now select which partitions to use by selecting mount points (inside the installation). **")
archinstall.log(f" ** The root would be a simple / and the boot partition /boot (as all paths are relative inside the installation). **")
while True:
# Select a partition
partition = archinstall.generic_select(partition_mountpoints.keys(),
"Select a partition by number that you want to set a mount-point for (leave blank when done): ")
if not partition:
break
# Select a mount-point
mountpoint = input(f"Enter a mount-point for {partition}: ").strip(' ')
if len(mountpoint):
# Get a valid & supported filesystem for the parition:
while 1:
new_filesystem = input(f"Enter a valid filesystem for {partition} (leave blank for {partition.filesystem}): ").strip(' ')
if len(new_filesystem) <= 0:
if partition.encrypted and partition.filesystem == 'crypto_LUKS':
old_password = archinstall.arguments.get('!encryption-password', None)
if not old_password:
old_password = input(f'Enter the old encryption password for {partition}: ')
if (autodetected_filesystem := partition.detect_inner_filesystem(old_password)):
new_filesystem = autodetected_filesystem
else:
archinstall.log(f"Could not auto-detect the filesystem inside the encrypted volume.", fg='red')
archinstall.log(f"A filesystem must be defined for the unlocked encrypted partition.")
continue
break
# Since the potentially new filesystem is new
# we have to check if we support it. We can do this by formatting /dev/null with the partitions filesystem.
# There's a nice wrapper for this on the partition object itself that supports a path-override during .format()
try:
partition.format(new_filesystem, path='/dev/null', log_formating=False, allow_formatting=True)
except archinstall.UnknownFilesystemFormat:
archinstall.log(f"Selected filesystem is not supported yet. If you want archinstall to support '{new_filesystem}', please create a issue-ticket suggesting it on github at https://github.com/Torxed/archinstall/issues.")
archinstall.log(f"Until then, please enter another supported filesystem.")
continue
except archinstall.SysCallError:
pass # Expected exception since mkfs.<format> can not format /dev/null.
# But that means our .format() function supported it.
break
# When we've selected all three criterias,
# We can safely mark the partition for formatting and where to mount it.
# TODO: allow_formatting might be redundant since target_mountpoint should only be
# set if we actually want to format it anyway.
partition.allow_formatting = True
partition.target_mountpoint = mountpoint
# Only overwrite the filesystem definition if we selected one:
if len(new_filesystem):
partition.filesystem = new_filesystem
archinstall.log('Using existing partition table reported above.')
elif option == 'format-all':
archinstall.arguments['filesystem'] = archinstall.ask_for_main_filesystem_format()
archinstall.arguments['harddrive'].keep_partitions = False
else:
# If the drive doesn't have any partitions, safely mark the disk with keep_partitions = False
# and ask the user for a root filesystem.
archinstall.arguments['filesystem'] = archinstall.ask_for_main_filesystem_format()
archinstall.arguments['harddrive'].keep_partitions = False
# Get disk encryption password (or skip if blank)
if not archinstall.arguments.get('!encryption-password', None):
if (passwd := archinstall.get_password(prompt='Enter disk encryption password (leave blank for no encryption): ')):
archinstall.arguments['!encryption-password'] = passwd
archinstall.arguments['harddrive'].encryption_password = archinstall.arguments['!encryption-password']
# Get the hostname for the machine
if not archinstall.arguments.get('hostname', None):
archinstall.arguments['hostname'] = input('Desired hostname for the installation: ').strip(' ')
# Ask for a root password (optional, but triggers requirement for super-user if skipped)
if not archinstall.arguments.get('!root-password', None):
archinstall.arguments['!root-password'] = archinstall.get_password(prompt='Enter root password (Recommendation: leave blank to leave root disabled): ')
# Ask for additional users (super-user if root pw was not set)
archinstall.arguments['users'] = {}
archinstall.arguments['superusers'] = {}
if not archinstall.arguments.get('!root-password', None):
archinstall.arguments['superusers'] = archinstall.ask_for_superuser_account('Create a required super-user with sudo privileges: ', forced=True)
users, superusers = archinstall.ask_for_additional_users('Enter a username to create a additional user (leave blank to skip & continue): ')
archinstall.arguments['users'] = users
archinstall.arguments['superusers'] = {**archinstall.arguments['superusers'], **superusers}
# Ask for archinstall-specific profiles (such as desktop environments etc)
if not archinstall.arguments.get('profile', None):
archinstall.arguments['profile'] = archinstall.select_profile(archinstall.list_profiles())
else:
archinstall.arguments['profile'] = archinstall.list_profiles()[archinstall.arguments['profile']]
# Check the potentially selected profiles preperations to get early checks if some additional questions are needed.
if archinstall.arguments['profile'] and archinstall.arguments['profile'].has_prep_function():
with archinstall.arguments['profile'].load_instructions(namespace=f"{archinstall.arguments['profile'].namespace}.py") as imported:
if not imported._prep_function():
archinstall.log(
' * Profile\'s preparation requirements was not fulfilled.',
bg='black',
fg='red'
)
exit(1)
# Additional packages (with some light weight error handling for invalid package names)
if not archinstall.arguments.get('packages', None):
archinstall.arguments['packages'] = [package for package in input('Write additional packages to install (space separated, leave blank to skip): ').split(' ') if len(package)]
# Verify packages that were given
try:
archinstall.validate_package_list(archinstall.arguments['packages'])
except archinstall.RequirementError as e:
archinstall.log(e, fg='red')
exit(1)
# Ask or Call the helper function that asks the user to optionally configure a network.
if not archinstall.arguments.get('nic', None):
archinstall.arguments['nic'] = archinstall.ask_to_configure_network()
if not archinstall.arguments['nic']:
archinstall.log(f"No network configuration was selected. Network is going to be unavailable until configured manually!", fg="yellow")
if not archinstall.arguments.get('timezone', None):
archinstall.arguments['timezone'] = archinstall.ask_for_a_timezone()
def perform_installation_steps():
global SIG_TRIGGER
print()
print('This is your chosen configuration:')
archinstall.log("-- Guided template chosen (with below config) --", level=archinstall.LOG_LEVELS.Debug)
archinstall.log(json.dumps(archinstall.arguments, indent=4, sort_keys=True, cls=archinstall.JSON), level=archinstall.LOG_LEVELS.Info)
print()
input('Press Enter to continue.')
"""
Issue a final warning before we continue with something un-revertable.
We mention the drive one last time, and count from 5 to 0.
"""
print(f" ! Formatting {archinstall.arguments['harddrive']} in ", end='')
for i in range(5, 0, -1):
print(f"{i}", end='')
for x in range(4):
sys.stdout.flush()
time.sleep(0.25)
print(".", end='')
if SIG_TRIGGER:
abort = input('\nDo you really want to abort (y/n)? ')
if abort.strip() != 'n':
exit(0)
if SIG_TRIGGER is False:
sys.stdin.read()
SIG_TRIGGER = False
signal.signal(signal.SIGINT, sig_handler)
# Put back the default/original signal handler now that we're done catching
# and interrupting SIGINT with "Do you really want to abort".
print()
signal.signal(signal.SIGINT, original_sigint_handler)
"""
Setup the blockdevice, filesystem (and optionally encryption).
Once that's done, we'll hand over to perform_installation()
"""
# maybe we can ask the user what they would prefer on uefi systems?
if hasUEFI():
mode = archinstall.GPT
else:
mode = archinstall.MBR
with archinstall.Filesystem(archinstall.arguments['harddrive'],mode) as fs:
# Wipe the entire drive if the disk flag `keep_partitions`is False.
if archinstall.arguments['harddrive'].keep_partitions is False:
fs.use_entire_disk(root_filesystem_type=archinstall.arguments.get('filesystem', 'btrfs'))
# Check if encryption is desired and mark the root partition as encrypted.
if archinstall.arguments.get('!encryption-password', None):
root_partition = fs.find_partition('/')
root_partition.encrypted = True
# After the disk is ready, iterate the partitions and check
# which ones are safe to format, and format those.
for partition in archinstall.arguments['harddrive']:
if partition.safe_to_format():
# Partition might be marked as encrypted due to the filesystem type crypt_LUKS
# But we might have omitted the encryption password question to skip encryption.
# In which case partition.encrypted will be true, but passwd will be false.
if partition.encrypted and (passwd := archinstall.arguments.get('!encryption-password', None)):
partition.encrypt(password=passwd)
else:
partition.format()
else:
archinstall.log(f"Did not format {partition} because .safe_to_format() returned False or .allow_formatting was False.", level=archinstall.LOG_LEVELS.Debug)
if archinstall.arguments.get('!encryption-password', None):
# First encrypt and unlock, then format the desired partition inside the encrypted part.
# archinstall.luks2() encrypts the partition when entering the with context manager, and
# unlocks the drive so that it can be used as a normal block-device within archinstall.
with archinstall.luks2(fs.find_partition('/'), 'luksloop', archinstall.arguments.get('!encryption-password', None)) as unlocked_device:
unlocked_device.format(fs.find_partition('/').filesystem)
perform_installation(device=unlocked_device,
boot_partition=fs.find_partition('/boot'),
language=archinstall.arguments['keyboard-language'],
mirrors=archinstall.arguments['mirror-region'])
else:
perform_installation(device=fs.find_partition('/'),
boot_partition=fs.find_partition('/boot'),
language=archinstall.arguments['keyboard-language'],
mirrors=archinstall.arguments['mirror-region'])
def perform_installation(device, boot_partition, language, mirrors):
"""
Performs the installation steps on a block device.
Only requirement is that the block devices are
formatted and setup prior to entering this function.
"""
with archinstall.Installer(device, boot_partition=boot_partition, hostname=archinstall.arguments.get('hostname', 'Archinstall')) as installation:
## if len(mirrors):
# Certain services might be running that affects the system during installation.
# Currently, only one such service is "reflector.service" which updates /etc/pacman.d/mirrorlist
# We need to wait for it before we continue since we opted in to use a custom mirror/region.
installation.log(f'Waiting for automatic mirror selection has completed before using custom mirrors.')
while 'dead' not in (status := archinstall.service_state('reflector')):
time.sleep(1)
archinstall.use_mirrors(mirrors) # Set the mirrors for the live medium
if installation.minimal_installation():
installation.set_mirrors(mirrors) # Set the mirrors in the installation medium
installation.set_keyboard_language(language)
installation.add_bootloader()
# If user selected to copy the current ISO network configuration
# Perform a copy of the config
if archinstall.arguments.get('nic', None) == 'Copy ISO network configuration to installation':
installation.copy_ISO_network_config(enable_services=True) # Sources the ISO network configuration to the install medium.
# Otherwise, if a interface was selected, configure that interface
elif archinstall.arguments.get('nic', None):
installation.configure_nic(**archinstall.arguments.get('nic', {}))
installation.enable_service('systemd-networkd')
installation.enable_service('systemd-resolved')
if archinstall.arguments.get('packages', None) and archinstall.arguments.get('packages', None)[0] != '':
installation.add_additional_packages(archinstall.arguments.get('packages', None))
if archinstall.arguments.get('profile', None):
installation.install_profile(archinstall.arguments.get('profile', None))
for user, user_info in archinstall.arguments.get('users', {}).items():
installation.user_create(user, user_info["!password"], sudo=False)
for superuser, user_info in archinstall.arguments.get('superusers', {}).items():
installation.user_create(superuser, user_info["!password"], sudo=True)
if (timezone := archinstall.arguments.get('timezone', None)):
installation.set_timezone(timezone)
if (root_pw := archinstall.arguments.get('!root-password', None)) and len(root_pw):
installation.user_set_pw('root', root_pw)
ask_user_questions()
perform_installation_steps()
|