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import archinstall
import getpass, time, json, sys, signal
"""
This signal-handler chain (and global variable)
is used to trigger the "Are you sure you want to abort?" question.
"""
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 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=hostname) 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.
archinstall.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 len(packages) and packages[0] != '':
installation.add_additional_packages(packages)
if profile and len(profile.strip()):
installation.install_profile(profile)
for user, password in users.items():
sudo = False
if len(root_pw.strip()) == 0:
sudo = True
installation.user_create(user, password, sudo=sudo)
if root_pw:
installation.user_set_pw('root', root_pw)
# Unmount and close previous runs (in case the installer is restarted)
archinstall.sys_command(f'umount -R /mnt', surpress_errors=True)
archinstall.sys_command(f'cryptsetup close /dev/mapper/luksloop', surpress_errors=True)
"""
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.
"""
keyboard_language = archinstall.select_language(archinstall.list_keyboard_languages())
archinstall.set_keyboard_language(keyboard_language)
# Create a storage structure for all our information.
# We'll print this right before the user gets informed about the formatting timer.
archinstall.storage['_guided'] = {}
# Set which region to download packages from during the installation
mirror_regions = archinstall.select_mirror_regions(archinstall.list_mirrors())
archinstall.storage['_guided']['mirrors'] = mirror_regions
# Ask which harddrive/block-device we will install to
harddrive = archinstall.select_disk(archinstall.all_disks())
while (disk_password := getpass.getpass(prompt='Enter disk encryption password (leave blank for no encryption): ')):
disk_password_verification = getpass.getpass(prompt='And one more time for verification: ')
if disk_password != disk_password_verification:
archinstall.log(' * Passwords did not match * ', bg='black', fg='red')
continue
break
archinstall.storage['_guided']['harddrive'] = harddrive
# Ask for a hostname
hostname = input('Desired hostname for the installation: ')
if len(hostname) == 0: hostname = 'ArchInstall'
archinstall.storage['_guided']['hostname'] = hostname
# Ask for a root password (optional, but triggers requirement for super-user if skipped)
while (root_pw := getpass.getpass(prompt='Enter root password (leave blank to leave root disabled): ')):
root_pw_verification = getpass.getpass(prompt='And one more time for verification: ')
if root_pw != root_pw_verification:
archinstall.log(' * Passwords did not match * ', bg='black', fg='red')
continue
break
# Ask for additional users (super-user if root pw was not set)
users = {}
new_user_text = 'Any additional users to install (leave blank for no users): '
if len(root_pw.strip()) == 0:
new_user_text = 'Create a super-user with sudo privileges: '
while 1:
new_user = input(new_user_text)
if len(new_user.strip()) == 0:
if len(root_pw.strip()) == 0:
archinstall.log(' * Since root is disabled, you need to create a least one (super) user!', bg='black', fg='red')
continue
break
if 'users' not in archinstall.storage['_guided']: archinstall.storage['_guided']['users'] = []
archinstall.storage['_guided']['users'].append(new_user)
new_user_passwd = getpass.getpass(prompt=f'Password for user {new_user}: ')
new_user_passwd_verify = getpass.getpass(prompt=f'Enter password again for verification: ')
if new_user_passwd != new_user_passwd_verify:
archinstall.log(' * Passwords did not match * ', bg='black', fg='red')
continue
users[new_user] = new_user_passwd
break
# Ask for archinstall-specific profiles (such as desktop environments etc)
while 1:
profile = archinstall.select_profile(archinstall.list_profiles())
if profile:
archinstall.storage['_guided']['profile'] = profile
if type(profile) != str: # Got a imported profile
archinstall.storage['_guided']['profile'] = profile[0] # The second return is a module, and not a handle/object.
if not profile[1]._prep_function():
archinstall.log(' * Profile\'s preperation requirements was not fulfilled.', bg='black', fg='red')
continue
profile = profile[0]._path # Once the prep is done, replace the selected profile with the profile name ("path") given from select_profile()
break
else:
break
# Additional packages (with some light weight error handling for invalid package names)
while 1:
packages = [package for package in input('Additional packages aside from base (space separated): ').split(' ') if len(package)]
if not packages:
break
try:
if archinstall.validate_package_list(packages):
archinstall.storage['_guided']['packages'] = packages
break
except archinstall.RequirementError as e:
print(e)
print()
print('This is your chosen configuration:')
print(json.dumps(archinstall.storage['_guided'], indent=4, sort_keys=True, cls=archinstall.JSON))
print()
"""
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 {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)
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()
"""
with archinstall.Filesystem(harddrive, archinstall.GPT) as fs:
# Use partitioning helper to set up the disk partitions.
if disk_password:
fs.use_entire_disk('luks2')
else:
fs.use_entire_disk('ext4')
if harddrive.partition[1].size == '512M':
raise OSError('Trying to encrypt the boot partition for petes sake..')
harddrive.partition[0].format('fat32')
if disk_password:
# 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(harddrive.partition[1], 'luksloop', disk_password) as unlocked_device:
unlocked_device.format('btrfs')
perform_installation(unlocked_device, harddrive.partition[0], keyboard_language, mirror_regions)
else:
harddrive.partition[1].format('ext4')
perform_installation(harddrive.partition[1], harddrive.partition[0], keyboard_language, mirror_regions)
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