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startup_utils.py
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startup_utils.py
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#
# startup_utils.py - code used during early startup with minimal dependencies
#
# Copyright (C) 2014 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details. You should have received a copy of the
# GNU General Public License along with this program; if not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
#
import sys
import time
import os
from blivet.arch import is_s390
from blivet.util import total_memory
from dasbus.typing import get_variant, Int
from pyanaconda import ntp
from pyanaconda import anaconda_logging
from pyanaconda import network
from pyanaconda import kickstart
from pyanaconda.anaconda_loggers import get_stdout_logger, get_module_logger
from pyanaconda.core.util import persistent_root_image, ipmi_report, setenv, \
get_anaconda_version_string
from pyanaconda.core.hw import minimal_memory_needed
from pyanaconda.core.configuration.anaconda import conf
from pyanaconda.core.constants import TEXT_ONLY_TARGET, SETUP_ON_BOOT_DEFAULT, \
SETUP_ON_BOOT_ENABLED, DRACUT_ERRORS_PATH, IPMI_ABORTED, STORAGE_MIN_RAM, SELINUX_DEFAULT, \
THREAD_TIME_INIT, DisplayModes, GEOLOC_CONNECTION_TIMEOUT, TIMEZONE_PRIORITY_GEOLOCATION
from pyanaconda.core.i18n import _
from pyanaconda.core.payload import ProxyString, ProxyStringError
from pyanaconda.core.product import get_product_is_final_release, get_product_name, \
get_product_version
from pyanaconda.core.service import start_service
from pyanaconda.flags import flags
from pyanaconda.localization import get_territory_locales, setup_locale, locale_has_translation
from pyanaconda.screensaver import inhibit_screensaver
from pyanaconda.modules.common.task import wait_for_task
from pyanaconda.modules.common.structures.timezone import TimeSourceData, GeolocationData
from pyanaconda.modules.common.constants.objects import STORAGE_CHECKER
from pyanaconda.modules.common.constants.services import TIMEZONE, LOCALIZATION, SERVICES, \
SECURITY, STORAGE
from pyanaconda.modules.common.util import is_module_available
from pyanaconda.core.threads import thread_manager
stdout_log = get_stdout_logger()
log = get_module_logger(__name__)
def gtk_warning(title, reason):
"""A simple warning dialog for use during early startup of the Anaconda GUI.
:param str title: title of the warning dialog
:param str reason: warning message
TODO: this should be abstracted out to some kind of a "warning API" + UI code
that shows the actual warning
"""
import gi
gi.require_version("Gtk", "3.0")
from gi.repository import Gtk
dialog = Gtk.MessageDialog(type=Gtk.MessageType.ERROR,
buttons=Gtk.ButtonsType.CLOSE,
message_format=reason)
dialog.set_title(title)
dialog.run()
dialog.destroy()
def check_memory(anaconda, options, display_mode=None):
"""Check if the system has enough RAM for installation.
:param anaconda: instance of the Anaconda class
:param options: command line/boot options
:param display_mode: a display mode to use for the check
(graphical mode usually needs more RAM, etc.)
"""
reason_strict = _("%(product_name)s requires %(needed_ram)s MB of memory to "
"install, but you only have %(total_ram)s MB on this machine.\n")
reason_graphical = _("The %(product_name)s graphical installer requires %(needed_ram)s "
"MB of memory, but you only have %(total_ram)s MB.\n")
reboot_extra = _('\n'
'Press [Enter] to reboot your system.\n')
livecd_title = _("Not enough RAM")
livecd_extra = _(" Try the text mode installer by running:\n\n"
"'/usr/bin/liveinst -T'\n\n from a root terminal.")
nolivecd_extra = _(" Starting text mode.")
# skip the memory check in rescue mode
if options.rescue:
return
if not display_mode:
display_mode = anaconda.display_mode
reason = reason_strict
total_ram = int(total_memory().convert_to("MiB"))
# count the squashfs.img in if it is kept in RAM
with_squashfs = not persistent_root_image()
needed_ram = minimal_memory_needed(with_gui=False, with_squashfs=with_squashfs)
log.info("check_memory(): total:%s, needed:%s", total_ram, needed_ram)
if not options.memcheck:
log.warning("CHECK_MEMORY DISABLED")
return
reason_args = {"product_name": get_product_name(),
"needed_ram": needed_ram,
"total_ram": total_ram}
if needed_ram > total_ram:
if options.liveinst:
# pylint: disable=logging-not-lazy
stdout_log.warning(reason % reason_args)
gtk_warning(livecd_title, reason % reason_args)
else:
reason += reboot_extra
print(reason % reason_args)
print(_("The installation cannot continue and the system will be rebooted"))
print(_("Press ENTER to continue"))
input()
ipmi_report(IPMI_ABORTED)
sys.exit(1)
# override display mode if machine cannot nicely run X
if display_mode != DisplayModes.TUI and not flags.usevnc:
needed_ram = minimal_memory_needed(with_gui=True, with_squashfs=with_squashfs)
log.info("check_memory(): total:%s, graphical:%s", total_ram, needed_ram)
reason_args["needed_ram"] = needed_ram
reason = reason_graphical
if needed_ram > total_ram:
if options.liveinst:
reason += livecd_extra
# pylint: disable=logging-not-lazy
stdout_log.warning(reason % reason_args)
title = livecd_title
gtk_warning(title, reason % reason_args)
ipmi_report(IPMI_ABORTED)
sys.exit(1)
else:
reason += nolivecd_extra
# pylint: disable=logging-not-lazy
stdout_log.warning(reason % reason_args)
anaconda.display_mode = DisplayModes.TUI
time.sleep(2)
def set_storage_checker_minimal_ram_size(display_mode):
"""Set minimal ram size to the storage checker.
:param display_mode: display mode
:type display_mode: constants.DisplayModes.[TUI|GUI]
"""
min_ram = minimal_memory_needed(with_gui=display_mode == DisplayModes.GUI)
storage_checker = STORAGE.get_proxy(STORAGE_CHECKER)
storage_checker.SetConstraint(
STORAGE_MIN_RAM,
get_variant(Int, min_ram * 1024 * 1024)
)
def setup_logging_from_options(options):
"""Configure logging according to Anaconda command line/boot options.
:param options: Anaconda command line/boot options
"""
if conf.system.can_modify_syslog:
if options.syslog:
anaconda_logging.logger.updateRemote(options.syslog)
if options.remotelog:
try:
host, port = options.remotelog.split(":", 1)
port = int(port)
anaconda_logging.logger.setup_remotelog(host, port)
except ValueError:
log.error("Could not setup remotelog with %s", options.remotelog)
def setup_logging_from_kickstart(data):
"""Configure logging according to the kickstart.
:param data: kickstart data
"""
host = data.logging.host
port = data.logging.port
if anaconda_logging.logger.remote_syslog is None and len(host) > 0:
# not set from the command line, ok to use kickstart
remote_server = host
if port:
remote_server = "%s:%s" % (host, port)
anaconda_logging.logger.updateRemote(remote_server)
def set_up_proxy_variables(proxy):
"""Set up proxy environmental variables.
Set up proxy environmental variables so that %pre and %post
scripts can use it as well as curl, libreport, etc.
:param proxy: a string with the proxy URL
"""
if not proxy:
log.debug("Don't set up proxy variables.")
return
try:
proxy = ProxyString(proxy)
except ProxyStringError as e:
log.info("Failed to parse proxy \"%s\": %s", proxy, e)
else:
# Set environmental variables to be used by pre/post scripts
setenv("PROXY", proxy.noauth_url)
setenv("PROXY_USER", proxy.username or "")
setenv("PROXY_PASSWORD", proxy.password or "")
# Variables used by curl, libreport, etc.
setenv("http_proxy", proxy.url)
setenv("ftp_proxy", proxy.url)
setenv("HTTPS_PROXY", proxy.url)
def prompt_for_ssh(options):
"""Prompt the user to ssh to the installation environment on the s390.
:param options: Anaconda command line/boot options
:return: True if the prompt is printed, otherwise False
"""
if not is_s390():
return False
if not conf.target.is_hardware:
return False
if 'TMUX' in os.environ:
return False
if options.ksfile:
return False
if options.vnc:
return False
# Do some work here to get the ip addr / hostname to pass
# to the user.
import socket
ip = network.get_first_ip_address()
if not ip:
stdout_log.error("No IP addresses found, cannot continue installation.")
ipmi_report(IPMI_ABORTED)
sys.exit(1)
ipstr = ip
name = None
try:
hinfo = socket.gethostbyaddr(ipstr)
except socket.herror as e:
stdout_log.debug("Exception caught trying to get host name of %s: %s", ipstr, e)
name = socket.gethostname()
else:
if len(hinfo) == 3:
name = hinfo[0]
if ip.find(':') != -1:
ipstr = "[%s]" % (ip,)
if (name is not None) and (not name.startswith('localhost')) and (ipstr is not None):
connxinfo = "%s (%s)" % (socket.getfqdn(name=name), ipstr,)
elif ipstr is not None:
connxinfo = "%s" % (ipstr,)
else:
connxinfo = None
if connxinfo:
stdout_log.info(_("Please ssh install@%s to begin the install."), connxinfo)
else:
stdout_log.info(_("Please ssh install@HOSTNAME to continue installation."))
return True
def clean_pstore():
"""Remove files stored in nonvolatile ram created by the pstore subsystem.
Files in pstore are Linux (not distribution) specific, but we want to
make sure the entirety of them are removed so as to ensure that there
is sufficient free space on the flash part. On some machines this will
take effect immediately, which is the best case. Unfortunately on some,
an intervening reboot is needed.
"""
for (base, dirs, files) in os.walk("/sys/fs/pstore"): # pylint: disable=unused-variable
for file in files:
try:
os.unlink(os.path.join(base, file))
except OSError:
pass
def print_startup_note(options):
"""Print Anaconda version and short usage instructions.
Print Anaconda version and short usage instruction to the TTY where Anaconda is running.
:param options: command line/boot options
"""
verdesc = "%s for %s %s" % (get_anaconda_version_string(build_time_version=True),
get_product_name(), get_product_version())
logs_note = " * installation log files are stored in /tmp during the installation"
shell_and_tmux_note = " * shell is available on TTY2"
shell_only_note = " * shell is available on TTY2 and in second TMUX pane (ctrl+b, then press 2)"
tmux_only_note = " * shell is available in second TMUX pane (ctrl+b, then press 2)"
text_mode_note = " * if the graphical installation interface fails to start, try again with the\n"\
" inst.text bootoption to start text installation"
separate_attachements_note = " * when reporting a bug add logs from /tmp as separate text/plain attachments"
if get_product_is_final_release():
print("anaconda %s started." % verdesc)
else:
print("anaconda %s (pre-release) started." % verdesc)
if not options.images and not options.dirinstall:
print(logs_note)
# no fancy stuff like TTYs on a s390...
if not is_s390():
if "TMUX" in os.environ and os.environ.get("TERM") == "screen":
print(shell_and_tmux_note)
else:
print(shell_only_note) # TMUX is not running
# ...but there is apparently TMUX during the manual installation on s390!
elif not options.ksfile:
print(tmux_only_note) # but not during kickstart installation
# no need to tell users how to switch to text mode
# if already in text mode
if options.display_mode == DisplayModes.TUI:
print(text_mode_note)
print(separate_attachements_note)
def live_startup():
"""Live environment startup tasks."""
inhibit_screensaver()
def find_kickstart(options):
"""Find a kickstart to parse.
If we were given a kickstart file, return that one. Otherwise, return
a default kickstart file shipped with the installation media.
Pick up any changes from interactive-defaults.ks that would otherwise
be covered by the dracut kickstart parser.
:param options: command line/boot options
:returns: a path to a kickstart file or None
"""
if options.ksfile and not options.liveinst:
if not os.path.exists(options.ksfile):
stdout_log.error("Kickstart file %s is missing.", options.ksfile)
ipmi_report(IPMI_ABORTED)
sys.exit(1)
flags.automatedInstall = True
flags.eject = False
ks_files = [options.ksfile]
elif os.path.exists("/run/install/ks.cfg") and not options.liveinst:
# this is to handle such cases where a user has pre-loaded a
# ks.cfg onto an OEMDRV labeled device
flags.automatedInstall = True
flags.eject = False
ks_files = ["/run/install/ks.cfg"]
else:
ks_files = ["/usr/share/anaconda/interactive-defaults.ks"]
for ks in ks_files:
if not os.path.exists(ks):
continue
return ks
return None
def run_pre_scripts(ks_path):
"""Run %pre scripts.
:param ks_path: a path to a kickstart file or None
"""
if ks_path is not None:
kickstart.preScriptPass(ks_path)
def parse_kickstart(ks_path, strict_mode=False):
"""Parse the given kickstart file.
:param ks_path: a path to a kickstart file or None
:param strict_mode: process warnings as errors if True
:returns: kickstart parsed to a data model
"""
ksdata = kickstart.AnacondaKSHandler()
if ks_path is not None:
log.info("Parsing kickstart: %s", ks_path)
kickstart.parseKickstart(ksdata, ks_path, strict_mode=strict_mode)
return ksdata
def initialize_system_clock():
"""Initialize the system clock."""
if not conf.system.can_initialize_system_clock:
log.debug("Skip the clock initialization.")
return
if not is_module_available(TIMEZONE):
return
from pyanaconda.timezone import time_initialize
timezone_proxy = TIMEZONE.get_proxy()
thread_manager.add_thread(
name=THREAD_TIME_INIT,
target=time_initialize,
args=(timezone_proxy,)
)
def start_chronyd():
"""Start the NTP daemon chronyd.
Set up NTP servers and start NTP daemon if not requested otherwise.
"""
if not conf.system.can_set_time_synchronization:
log.debug("Skip the time synchronization.")
return
if not is_module_available(TIMEZONE):
log.debug("Skip the time synchronization due to disabled module.")
return
timezone_proxy = TIMEZONE.get_proxy()
enabled = timezone_proxy.NTPEnabled
servers = TimeSourceData.from_structure_list(
timezone_proxy.TimeSources
)
if servers:
ntp.save_servers_to_config(servers)
if enabled:
start_service("chronyd")
def activate_keyboard(opts):
"""Activate keyboard.
Set up keyboard layout from the command line option and
let it override from kickstart if/when X is initialized.
:param opts: the command line/boot options
"""
if not is_module_available(LOCALIZATION):
return
from pyanaconda import keyboard
localization_proxy = LOCALIZATION.get_proxy()
if opts.keymap and not localization_proxy.KeyboardKickstarted:
localization_proxy.SetKeyboard(opts.keymap)
localization_proxy.KeyboardKickstarted = True
if localization_proxy.KeyboardKickstarted:
if conf.system.can_activate_keyboard:
keyboard.activate_keyboard(localization_proxy)
else:
# at least make sure we have all the values
keyboard.populate_missing_items(localization_proxy)
def initialize_locale(opts, text_mode):
"""Initialize locale.
:param opts: the command line/boot options
:param text_mode: is the locale being set up for the text mode?
"""
from pyanaconda import localization
locale_option = None
localization_proxy = None
if is_module_available(LOCALIZATION):
localization_proxy = LOCALIZATION.get_proxy()
# If the language was set on the command line, copy that to kickstart
if opts.lang:
localization_proxy.Language = opts.lang
localization_proxy.LanguageKickstarted = True
# Setup the locale environment
if localization_proxy.LanguageKickstarted:
locale_option = localization_proxy.Language
localization.setup_locale_environment(locale_option, text_mode=text_mode)
# Now that LANG is set, do something with it
localization.setup_locale(os.environ["LANG"], localization_proxy, text_mode=text_mode)
def reinitialize_locale(text_mode):
"""Reinitialize locale.
We need to reinitialize the locale if GUI startup failed.
The text mode might not be able to display the characters
from our current locale.
:param text_mode: is the locale being set up for the text mode?
"""
from pyanaconda import localization
localization_proxy = None
if is_module_available(LOCALIZATION):
localization_proxy = LOCALIZATION.get_proxy()
log.warning("reinitializing locale due to failed attempt to start the GUI")
localization.setup_locale(os.environ["LANG"], localization_proxy, text_mode=text_mode)
def initialize_default_systemd_target(text_mode):
"""Initialize the default systemd target.
If we're in text mode, the resulting system should be too
unless the kickstart specified otherwise.
NOTE:
Installation controlled via VNC is considered to be
a text mode installation, as the installation run itself
is effectively headless.
:param text_mode: does the installer run in the text mode?
"""
if not is_module_available(SERVICES):
return
services_proxy = SERVICES.get_proxy()
if not services_proxy.DefaultTarget and (text_mode or flags.usevnc):
log.debug("no default systemd target set & in text/vnc mode - setting multi-user.target.")
services_proxy.DefaultTarget = TEXT_ONLY_TARGET
def initialize_first_boot_action():
"""Initialize the setup on boot action."""
if not is_module_available(SERVICES):
return
services_proxy = SERVICES.get_proxy()
if services_proxy.SetupOnBoot == SETUP_ON_BOOT_DEFAULT:
if not flags.automatedInstall:
# Enable by default for interactive installations.
services_proxy.SetupOnBoot = SETUP_ON_BOOT_ENABLED
def initialize_security():
"""Initialize the security configuration."""
if not is_module_available(SECURITY):
return
security_proxy = SECURITY.get_proxy()
# Override the selinux state from kickstart if set on the command line
if conf.security.selinux != SELINUX_DEFAULT:
security_proxy.SELinux = conf.security.selinux
# Enable fingerprint option by default (#481273).
if not flags.automatedInstall:
security_proxy.FingerprintAuthEnabled = True
def print_dracut_errors(stdout_logger):
"""Print Anaconda critical warnings from Dracut to user before starting Anaconda.
:param stdout_logger: python logger to stdout
"""
try:
with open(DRACUT_ERRORS_PATH, "rt") as fd:
section_name = "Installer errors encountered during boot"
msg = "\n{:#^70}\n{}\n{:#^70}".format( # add starting \n because timestamp
" " + section_name + " ", # start of the section
"".join(fd.readlines()), # errors from Dracut
" " + section_name + " end ") # end of the section
stdout_logger.warning(msg)
except OSError:
pass
def check_if_geolocation_should_be_used(opts):
"""Check if geolocation can be used during this installation run.
The result is based on current installation type - fully interactive vs
fully or partially automated kickstart installation and on the state of the
"geoloc*" boot/CLI options.
By default geolocation is not enabled during a kickstart based installation,
unless the geoloc_use_with_ks boot/CLI option is used.
Also the geoloc boot/CLI option can be used to make sure geolocation
will not be used during an installation, like this:
inst.geoloc=0
:param opts: the command line/boot options
"""
# don't use geolocation during image and directory installation
if not conf.target.is_hardware:
log.info("Geolocation is disabled for image or directory installation.")
return False
# check if geolocation was not disabled by boot or command line option
# our documentation mentions only "0" as the way to disable it
if str(opts.geoloc).strip() == "0":
log.info("Geolocation is disabled by the geoloc option.")
return False
# don't use geolocation during kickstart installation unless explicitly
# requested by the user
if flags.automatedInstall:
if opts.geoloc_use_with_ks:
# check for use-with-kickstart overrides
log.info("Geolocation is enabled during kickstart installation due to use of "
"the geoloc-use-with-ks option.")
return True
else:
# otherwise disable geolocation during a kickstart installation
log.info("Geolocation is disabled due to automated kickstart based installation.")
return False
log.info("Geolocation is enabled.")
return True
def start_geolocation_conditionally(opts):
"""Start geolocation conditionally, according to the command line or boot options.
:param opts: the command line/boot options
:return: D-Bus proxy for the geolocation task
"""
use_geoloc = check_if_geolocation_should_be_used(opts)
if not use_geoloc:
return None
if not is_module_available(TIMEZONE):
log.warning("Geoloc: not starting due to missing Timezone module")
return None
if not is_module_available(LOCALIZATION):
log.warning("Geoloc: not starting due to missing Localization module")
return None
timezone_proxy = TIMEZONE.get_proxy()
geoloc_task_path = timezone_proxy.StartGeolocationWithTask()
geoloc_task_proxy = TIMEZONE.get_proxy(geoloc_task_path)
geoloc_task_proxy.Start()
return geoloc_task_proxy
def wait_for_geolocation_and_use(geoloc_task_proxy, display_mode):
"""Wait for geolocation and use the result, if started.
:param geoloc_task_proxy: D-Bus proxy for a GeolocationTask instance
:param display_mode: a display mode to use for the check
"""
if not geoloc_task_proxy:
return
try:
wait_for_task(geoloc_task_proxy, timeout=GEOLOC_CONNECTION_TIMEOUT)
except TimeoutError:
log.debug("Geolocation timed out. Exceptions will not be logged.")
return
else:
apply_geolocation_result(display_mode)
def apply_geolocation_result(display_mode):
"""Apply geolocation result.
This does not check for kickstart installations, because in that case geolocation is not even
started.
:param display_mode: a display mode to use for the check
"""
timezone_module = TIMEZONE.get_proxy()
localization_module = LOCALIZATION.get_proxy()
geoloc_result = GeolocationData.from_structure(timezone_module.GeolocationResult)
# Nothing to do with no inputs.
if geoloc_result.is_empty():
return
if geoloc_result.timezone:
# (the geolocation module makes sure that the returned timezone is
# either a valid timezone or empty string)
log.info("Geoloc: using timezone determined by geolocation")
timezone_module.SetTimezoneWithPriority(
geoloc_result.timezone,
TIMEZONE_PRIORITY_GEOLOCATION
)
# Either this is an interactive install and timezone.seen propagates
# from the interactive default kickstart, or this is a kickstart
# install where the user explicitly requested geolocation to be used.
# So set timezone.seen to True, so that the user isn't forced to
# enter the Date & Time spoke to acknowledge the timezone detected
# by geolocation before continuing the installation.
timezone_module.Kickstarted = True
if not conf.localization.use_geolocation:
log.info("Geoloc: skipping locale because of use_geolocation configuration")
return
# skip language setup if already set by boot options or kickstart
language = localization_module.Language
if language and localization_module.LanguageKickstarted:
log.info("Geoloc: skipping locale because already set")
return
territory = geoloc_result.territory
locales = get_territory_locales(territory)
try:
locale = next(loc for loc in locales if locale_has_translation(loc))
except StopIteration:
log.info("Geoloc: detected languages are not translated, skipping locale")
return
is_console = display_mode == DisplayModes.TUI
locale = setup_locale(locale, localization_module, text_mode=is_console)
# pylint: disable=environment-modify
os.environ["LANG"] = locale