virt-manager/virt-install

912 lines
30 KiB
Python
Executable File

#!/usr/bin/python2 -tt
#
# Copyright 2005-2014 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty 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.
import argparse
import logging
import re
import sys
import time
import libvirt
import urlgrabber.progress as progress
import virtinst
import virtinst.cli as cli
from virtinst.cli import fail, print_stdout, print_stderr
##############################
# Validation utility helpers #
##############################
install_methods = "--location URL, --cdrom CD/ISO, --pxe, --import, --boot hd|cdrom|..."
def install_specified(location, cdpath, pxe, import_install):
return bool(pxe or cdpath or location or import_install)
def cdrom_specified(guest, disk=None):
disks = guest.get_devices("disk")
for disk in disks:
if disk.device == virtinst.VirtualDisk.DEVICE_CDROM:
return True
# Probably haven't set up disks yet
if not disks and disk:
for opts in disk:
if opts.count("device=cdrom"):
return True
return False
def storage_specified(disks, nodisks, filesystems):
return bool(disks or nodisks or filesystems)
def supports_pxe(guest):
"""
Return False if we are pretty sure the config doesn't support PXE
"""
for nic in guest.get_devices("interface"):
if nic.type == nic.TYPE_USER:
continue
if nic.type != nic.TYPE_VIRTUAL:
return True
try:
netobj = nic.conn.networkLookupByName(nic.source)
xmlobj = virtinst.Network(nic.conn, parsexml=netobj.XMLDesc(0))
if xmlobj.can_pxe():
return True
except:
logging.debug("Error checking if PXE supported", exc_info=True)
return True
return False
def check_cdrom_option_error(options):
if options.cdrom_short and options.cdrom:
fail("Cannot specify both -c and --cdrom")
if options.cdrom_short:
if "://" in options.cdrom_short:
fail("-c specified with what looks like a URI. Did you mean "
"to use --connect? If not, use --cdrom instead")
options.cdrom = options.cdrom_short
if not options.cdrom:
return
# Catch a strangely common error of users passing -vcpus=2 instead of
# --vcpus=2. The single dash happens to map to enough shortened options
# that things can fail weirdly if --paravirt is also specified.
for vcpu in [o for o in sys.argv if o.startswith("-vcpu")]:
if options.cdrom == vcpu[3:]:
fail("You specified -vcpus, you want --vcpus")
##############################
# Device validation wrappers #
##############################
def convert_old_sound(options):
if not options.sound:
return
for idx in range(len(options.sound)):
if options.sound[idx] is None:
options.sound[idx] = "default"
def convert_old_init(options):
if not options.init:
return
if not options.boot:
options.boot = ""
options.boot += ",init=%s" % options.init
logging.debug("Converted old --init to --boot %s", options.boot)
def convert_old_disks(options):
if options.disk or options.nodisks:
return
paths = virtinst.util.listify(options.file_paths)
sizes = virtinst.util.listify(options.disksize)
def padlist(l, padsize):
l = virtinst.util.listify(l)
l.extend((padsize - len(l)) * [None])
return l
disklist = padlist(paths, max(0, len(sizes)))
sizelist = padlist(sizes, len(disklist))
opts = []
for idx in range(len(disklist)):
optstr = ""
if disklist[idx]:
optstr += "path=%s" % disklist[idx]
if sizelist[idx]:
if optstr:
optstr += ","
optstr += "size=%s" % sizelist[idx]
if options.sparse is False:
if optstr:
optstr += ","
optstr += "sparse=no"
logging.debug("Converted to new style: --disk %s", optstr)
opts.append(optstr)
options.disk = opts
options.file_paths = []
options.disksize = None
options.sparse = True
def convert_old_os_options(options):
distro_variant = options.distro_variant
distro_type = options.distro_type
if not distro_type and not distro_variant:
# Default to distro autodetection
options.distro_variant = "auto"
return
distro_variant = distro_variant and str(distro_variant).lower() or None
distro_type = distro_type and str(distro_type).lower() or None
distkey = distro_variant or distro_type
if not distkey or distkey == "none":
options.distro_variant = "none"
else:
options.distro_variant = distkey
########################
# Virt type validation #
########################
def get_guest(conn, options):
# Set up all virt/hypervisor parameters
if sum([bool(f) for f in [options.fullvirt,
options.paravirt,
options.container]]) > 1:
fail(_("Can't do more than one of --hvm, --paravirt, or --container"))
req_hv_type = options.hv_type and options.hv_type.lower() or None
if options.fullvirt:
req_virt_type = "hvm"
elif options.paravirt:
req_virt_type = "xen"
elif options.container:
req_virt_type = "exe"
else:
# This should force capabilities to give us the most sensible default
req_virt_type = None
logging.debug("Requesting virt method '%s', hv type '%s'.",
(req_virt_type and req_virt_type or _("default")),
(req_hv_type and req_hv_type or _("default")))
arch = options.arch
if re.match("i.86", arch or ""):
arch = "i686"
try:
(capsguest,
capsdomain) = conn.caps.guest_lookup(
os_type=req_virt_type,
arch=arch,
typ=req_hv_type,
machine=options.machine)
guest = conn.caps.build_virtinst_guest(conn, capsguest, capsdomain)
guest.os.machine = options.machine
except Exception, e:
fail(e)
if (not req_virt_type and
not req_hv_type and
conn.is_qemu() and
capsguest.arch in ["i686", "x86_64"] and
not capsdomain.is_accelerated()):
logging.warn("KVM acceleration not available, using '%s'",
capsdomain.hypervisor_type)
return guest
##################################
# Install media setup/validation #
##################################
def set_install_media(guest, location, cdpath, distro_variant):
try:
cdinstall = bool(not location and (cdpath or cdrom_specified(guest)))
if cdinstall or cdpath:
guest.installer.cdrom = True
if location or cdpath:
guest.installer.location = (location or cdpath)
guest.installer.check_location(guest)
if distro_variant == "auto":
guest.os_variant = guest.installer.detect_distro(guest)
elif distro_variant != "none":
guest.os_variant = distro_variant
except ValueError, e:
fail(_("Error validating install location: %s" % str(e)))
#############################
# General option validation #
#############################
def validate_required_options(options, guest):
# Required config. Don't error right away if nothing is specified,
# aggregate the errors to help first time users get it right
msg = ""
if not options.name:
msg += "\n" + cli.name_missing
if not options.memory:
msg += "\n" + _("--memory amount in MiB is required")
if (not guest.os.is_container() and
not storage_specified(options.disk,
options.nodisks,
options.filesystem)):
msg += "\n" + (
_("--disk storage must be specified (override with --nodisks)"))
if (not guest.os.is_container() and
not (options.xmlonly or options.xmlstep) and
(not install_specified(options.location, options.cdrom,
options.pxe, options.import_install)) and
(not cdrom_specified(guest, options.disk))):
msg += "\n" + (
_("An install method must be specified\n(%(methods)s)") %
{"methods" : install_methods})
if msg:
fail(msg)
_cdrom_location_man_page = _("See the man page for examples of "
"using --location with CDROM media")
def check_option_collisions(options, guest):
# Disk collisions
if options.nodisks and (options.file_paths or
options.disk or
options.disksize):
fail(_("Cannot specify storage and use --nodisks"))
if ((options.file_paths or options.disksize or not options.sparse) and
options.disk):
fail(_("Cannot mix --file, --nonsparse, or --file-size with --disk "
"options. Use --disk PATH[,size=SIZE][,sparse=yes|no]"))
# Network collisions
if options.nonetworks:
if options.mac:
fail(_("Cannot use --mac with --nonetworks"))
if options.bridge:
fail(_("Cannot use --bridge with --nonetworks"))
if options.network:
fail(_("Cannot use --network with --nonetworks"))
return
# Install collisions
if sum([bool(l) for l in [options.pxe, options.location,
options.cdrom, options.import_install]]) > 1:
fail(_("Only one install method can be used (%(methods)s)") %
{"methods" : install_methods})
if (guest.os.is_container() and
install_specified(options.location, options.cdrom,
options.pxe, options.import_install)):
fail(_("Install methods (%s) cannot be specified for "
"container guests") % install_methods)
if guest.os.is_xenpv():
if options.pxe:
fail(_("Network PXE boot is not supported for paravirtualized "
"guests"))
if options.cdrom or options.livecd:
fail(_("Paravirtualized guests cannot install off cdrom media."))
if (options.location and
guest.conn.is_remote() and not
guest.conn.support_remote_url_install()):
fail(_("Libvirt version does not support remote --location installs"))
cdrom_err = ""
if guest.installer.cdrom:
cdrom_err = _cdrom_location_man_page
if not options.location and options.extra_args:
fail(_("--extra-args only work if specified with --location.") +
cdrom_err)
if not options.location and options.initrd_inject:
fail(_("--initrd-inject only works if specified with --location.") +
cdrom_err)
def _show_nographics_warnings(options, guest):
if guest.get_devices("graphics"):
return
if not options.autoconsole:
return
if guest.installer.cdrom:
logging.warn(_("CDROM media does not print to the text console "
"by default, so you likely will not see text install output. "
"You might want to use --location.") + _cdrom_location_man_page)
return
if not options.location:
return
# Trying --location --nographics with console connect. Warn if
# they likely won't see any output.
if not guest.get_devices("console"):
logging.warn(_("No --console device added, you likely will not "
"see text install output from the guest."))
return
serial_arg = "console=ttyS0"
serial_arm_arg = "console=ttyAMA0"
virtio_arg = "console=hvc0"
console_type = None
if guest.conn.is_test() or guest.conn.is_qemu():
console_type = serial_arg
if guest.os.arch.startswith("arm") or guest.os.arch == "aarch64":
console_type = serial_arm_arg
if guest.get_devices("console")[0].target_type == "virtio":
console_type = virtio_arg
if not options.extra_args or "console=" not in options.extra_args:
logging.warn(_("No 'console' seen in --extra-args, a '%s' kernel "
"argument is likely required to see text install output from "
"the guest."), console_type or "console=")
return
if console_type in options.extra_args:
return
if (serial_arg not in options.extra_args and
virtio_arg not in options.extra_args):
return
has = (serial_arg in options.extra_args) and serial_arg or virtio_arg
need = (serial_arg in options.extra_args) and virtio_arg or serial_arg
logging.warn(_("'%s' found in --extra-args, but the device attached "
"to the guest likely requires '%s'. You may not see text install "
"output from the guest."), has, need)
if has == serial_arg:
logging.warn(_("To make '--extra-args %s' work, you can force a "
"plain serial device with '--console pty'"), serial_arg)
def show_warnings(options, guest):
if options.pxe and not supports_pxe(guest):
logging.warn(_("The guest's network configuration does not support "
"PXE"))
if not guest.os_variant and options.distro_variant != "none":
logging.warn(_("No operating system detected, VM performance may "
"suffer. Specify an OS with --os-variant for optimal results."))
_show_nographics_warnings(options, guest)
##########################
# Guest building helpers #
##########################
def build_installer(options, conn, virt_type):
# Build the Installer instance
if options.pxe:
if options.nonetworks:
fail(_("Can't use --pxe with --nonetworks"))
instclass = virtinst.PXEInstaller
elif options.cdrom or options.location or options.livecd:
instclass = virtinst.DistroInstaller
elif virt_type == "exe":
instclass = virtinst.ContainerInstaller
elif options.import_install or options.boot:
if options.import_install and options.nodisks:
fail(_("A disk device must be specified with --import."))
options.import_install = True
instclass = virtinst.ImportInstaller
elif options.xmlstep or options.xmlonly:
instclass = virtinst.ImportInstaller
else:
instclass = virtinst.DistroInstaller
installer = instclass(conn)
if options.livecd:
installer.livecd = True
return installer
def build_guest_instance(conn, options, parsermap):
guest = get_guest(conn, options)
logging.debug("Received virt method '%s'", guest.type)
logging.debug("Hypervisor name is '%s'", guest.os.os_type)
guest.installer = build_installer(options, conn, guest.os.os_type)
cli.convert_old_memory(options)
convert_old_sound(options)
cli.convert_old_networks(options, not options.nonetworks and 1 or 0)
cli.convert_old_graphics(guest, options)
convert_old_disks(options)
cli.convert_old_features(options)
cli.convert_old_cpuset(options)
convert_old_init(options)
convert_old_os_options(options)
# non-xml install options
guest.installer.extraargs = options.extra_args
guest.installer.initrd_injections = options.initrd_inject
guest.autostart = options.autostart
if options.name:
guest.name = options.name
if options.uuid:
guest.uuid = options.uuid
if options.description:
guest.description = options.description
validate_required_options(options, guest)
# We don't want to auto-parse --disk, but we wanted it for earlier
# parameter introspection
cli.parse_option_strings(parsermap, options, guest, None)
# Extra disk validation
for disk in guest.get_devices("disk"):
cli.validate_disk(disk)
set_install_media(guest, options.location, options.cdrom,
options.distro_variant)
guest.add_default_devices()
# Various little validations about option collisions. Need to do
# this after setting guest.installer at least
check_option_collisions(options, guest)
show_warnings(options, guest)
return guest
###########################
# Install process helpers #
###########################
def domain_is_crashed(domain):
"""
Return True if the created domain object is in a crashed state
"""
if not domain:
return False
dominfo = domain.info()
state = dominfo[0]
return state == libvirt.VIR_DOMAIN_CRASHED
def domain_is_shutdown(domain):
"""
Return True if the created domain object is shutdown
"""
if not domain:
return False
dominfo = domain.info()
state = dominfo[0]
cpu_time = dominfo[4]
if state == libvirt.VIR_DOMAIN_SHUTOFF:
return True
# If 'wait' was specified, the dom object we have was looked up
# before initially shutting down, which seems to bogus up the
# info data (all 0's). So, if it is bogus, assume the domain is
# shutdown. We will catch the error later.
return state == libvirt.VIR_DOMAIN_NOSTATE and cpu_time == 0
def start_install(guest, continue_inst, options):
# There are two main cases we care about:
#
# Scripts: these should specify --wait always, maintaining the
# semantics of virt-install exit implying the domain has finished
# installing.
#
# Interactive: If this is a continue_inst domain, we default to
# waiting. Otherwise, we can exit before the domain has finished
# installing. Passing --wait will give the above semantics.
#
wait_on_install = continue_inst
wait_time = -1
if options.wait is not None:
wait_on_install = True
wait_time = options.wait * 60
# If --wait specified, we don't want the default behavior of waiting
# for virt-viewer to exit, since then we can't exit the app when time
# expires
wait_on_console = not wait_on_install
# --wait 0 implies --noautoconsole
options.autoconsole = (wait_time != 0) and options.autoconsole or False
conscb = options.autoconsole and cli.show_console_for_guest or None
meter = (options.quiet and
progress.BaseMeter() or
progress.TextMeter(fo=sys.stdout))
logging.debug("Guest.has_install_phase: %s",
guest.installer.has_install_phase())
# we've got everything -- try to start the install
print_stdout(_("\nStarting install..."))
try:
start_time = time.time()
# Do first install phase
dom = guest.start_install(meter=meter, noboot=options.noreboot)
cli.connect_console(guest, conscb, wait_on_console)
dom = check_domain(guest, dom, conscb,
wait_on_install, wait_time, start_time)
if continue_inst:
dom = guest.continue_install(meter=meter)
cli.connect_console(guest, conscb, wait_on_console)
dom = check_domain(guest, dom, conscb,
wait_on_install, wait_time, start_time)
if options.noreboot or not guest.installer.has_install_phase():
print_stdout(
_("Domain creation completed. You can restart your domain by "
"running:\n %s") % cli.virsh_start_cmd(guest))
else:
print_stdout(
_("Guest installation complete... restarting guest."))
dom.create()
cli.connect_console(guest, conscb, True)
except KeyboardInterrupt:
logging.debug("", exc_info=True)
print_stderr(_("Domain install interrupted."))
raise
except RuntimeError, e:
fail(e)
except Exception, e:
fail(e, do_exit=False)
cli.install_fail(guest)
def check_domain(guest, dom, conscb, wait_for_install, wait_time, start_time):
"""
Make sure domain ends up in expected state, and wait if for install
to complete if requested
"""
wait_forever = (wait_time < 0)
# Wait a bit so info is accurate
def check_domain_state():
dominfo = dom.info()
state = dominfo[0]
if domain_is_crashed(guest.domain):
fail(_("Domain has crashed."))
if domain_is_shutdown(guest.domain):
return dom, state
return None, state
do_sleep = bool(conscb)
try:
ret, state = check_domain_state()
if ret:
return ret
except Exception, e:
# Sometimes we see errors from libvirt here due to races
logging.exception(e)
do_sleep = True
if do_sleep:
# Sleep a bit and try again to be sure the HV has caught up
time.sleep(2)
ret, state = check_domain_state()
if ret:
return ret
# Domain seems to be running
logging.debug("Domain state after install: %s", state)
if not wait_for_install or wait_time == 0:
# User either:
# used --noautoconsole
# used --wait 0
# killed console and guest is still running
if not guest.installer.has_install_phase():
return dom
print_stdout(
_("Domain installation still in progress. You can reconnect"
" to \nthe console to complete the installation process."))
sys.exit(0)
timestr = (not wait_forever and
_("%d minutes ") % (int(wait_time) / 60) or "")
print_stdout(
_("Domain installation still in progress. Waiting "
"%(time_string)s for installation to complete.") %
{"time_string": timestr})
# Wait loop
while True:
if domain_is_shutdown(guest.domain):
print_stdout(_("Domain has shutdown. Continuing."))
try:
# Lookup a new domain object incase current
# one returned bogus data (see comment in
# domain_is_shutdown)
dom = guest.conn.lookupByName(guest.name)
except Exception, e:
raise RuntimeError(_("Could not lookup domain after "
"install: %s" % str(e)))
break
time_elapsed = (time.time() - start_time)
if not wait_forever and time_elapsed >= wait_time:
print_stdout(
_("Installation has exceeded specified time limit. "
"Exiting application."))
sys.exit(1)
time.sleep(2)
return dom
########################
# XML printing helpers #
########################
def xml_to_print(guest, continue_inst, xmlonly, xmlstep, dry):
start_xml, final_xml = guest.start_install(dry=dry, return_xml=True)
second_xml = None
if not start_xml:
start_xml = final_xml
final_xml = None
if continue_inst:
second_xml, final_xml = guest.continue_install(dry=dry,
return_xml=True)
if dry and not (xmlonly or xmlstep):
print_stdout(_("Dry run completed successfully"))
return
# --print-xml
if xmlonly and not xmlstep:
if second_xml or final_xml:
fail(_("--print-xml can only be used with guests that do not have "
"an installation phase (--import, --boot, etc.). To see all"
" generated XML, please use --print-step all."))
return start_xml
# --print-step
if xmlstep == "1":
return start_xml
if xmlstep == "2":
if not (second_xml or final_xml):
fail(_("Requested installation does not have XML step 2"))
return second_xml or final_xml
if xmlstep == "3":
if not second_xml:
fail(_("Requested installation does not have XML step 3"))
return final_xml
# "all" case
xml = start_xml
if second_xml:
xml += second_xml
if final_xml:
xml += final_xml
return xml
#######################
# CLI option handling #
#######################
def parse_args():
parser = cli.setupParser(
"%(prog)s --name NAME --ram RAM STORAGE INSTALL [options]",
_("Create a new virtual machine from specified install media."),
introspection_epilog=True)
cli.add_connect_option(parser)
geng = parser.add_argument_group(_("General Options"))
geng.add_argument("-n", "--name",
help=_("Name of the guest instance"))
cli.add_memory_option(geng, backcompat=True)
cli.vcpu_cli_options(geng)
cli.add_metadata_option(geng)
geng.add_argument("-u", "--uuid", help=argparse.SUPPRESS)
geng.add_argument("--description", help=argparse.SUPPRESS)
cli.add_guest_xml_options(geng)
insg = parser.add_argument_group(_("Installation Method Options"))
insg.add_argument("-c", dest="cdrom_short", help=argparse.SUPPRESS)
insg.add_argument("--cdrom", help=_("CD-ROM installation media"))
insg.add_argument("-l", "--location",
help=_("Installation source (eg, nfs:host:/path, "
"http://host/path, ftp://host/path)"))
insg.add_argument("--pxe", action="store_true",
help=_("Boot from the network using the PXE protocol"))
insg.add_argument("--import", action="store_true", dest="import_install",
help=_("Build guest around an existing disk image"))
insg.add_argument("--livecd", action="store_true",
help=_("Treat the CD-ROM media as a Live CD"))
insg.add_argument("-x", "--extra-args",
help=_("Additional arguments to pass to the install kernel "
"booted from --location"))
insg.add_argument("--initrd-inject", action="append",
help=_("Add given file to root of initrd from --location"))
# Way back when, we required specifying both --os-type and --os-variant
# Nowadays the distinction is pointless, so hide the less useful
# --os-type option.
insg.add_argument("--os-type", dest="distro_type", help=argparse.SUPPRESS)
insg.add_argument("--os-variant", dest="distro_variant",
help=_("The OS variant being installed guests, "
"e.g. 'fedora18', 'rhel6', 'winxp', etc."))
cli.add_boot_options(insg)
insg.add_argument("--init", help=argparse.SUPPRESS)
stog = parser.add_argument_group(_("Storage Configuration"))
cli.add_disk_option(stog)
stog.add_argument("--nodisks", action="store_true",
help=_("Don't set up any disks for the guest."))
cli.add_fs_option(stog)
# Deprecated storage options
stog.add_argument("-f", "--file", dest="file_paths", action="append",
help=argparse.SUPPRESS)
stog.add_argument("-s", "--file-size", type=float,
action="append", dest="disksize",
help=argparse.SUPPRESS)
stog.add_argument("--nonsparse", action="store_false",
default=True, dest="sparse",
help=argparse.SUPPRESS)
netg = cli.network_option_group(parser)
netg.add_argument("--nonetworks", action="store_true",
help=_("Don't create network interfaces for the guest."))
cli.graphics_option_group(parser)
devg = parser.add_argument_group(_("Device Options"))
cli.add_device_options(devg, sound_back_compat=True)
virg = parser.add_argument_group(_("Virtualization Platform Options"))
virg.add_argument("-v", "--hvm", action="store_true", dest="fullvirt",
help=_("This guest should be a fully virtualized guest"))
virg.add_argument("-p", "--paravirt", action="store_true",
help=_("This guest should be a paravirtualized guest"))
virg.add_argument("--container", action="store_true", default=False,
help=_("This guest should be a container guest"))
virg.add_argument("--virt-type", dest="hv_type",
default="",
help=_("Hypervisor name to use (kvm, qemu, xen, ...)"))
virg.add_argument("--accelerate", action="store_true", default=False,
help=argparse.SUPPRESS)
virg.add_argument("--arch",
help=_("The CPU architecture to simulate"))
virg.add_argument("--machine",
help=_("The machine type to emulate"))
cli.add_old_feature_options(virg)
misc = parser.add_argument_group(_("Miscellaneous Options"))
misc.add_argument("--autostart", action="store_true", dest="autostart",
default=False,
help=_("Have domain autostart on host boot up."))
misc.add_argument("--wait", type=int, dest="wait",
help=_("Minutes to wait for install to complete."))
cli.add_misc_options(misc, prompt=True, printxml=True, printstep=True,
noreboot=True, dryrun=True, noautoconsole=True)
return parser.parse_args()
###################
# main() handling #
###################
def main(conn=None):
cli.earlyLogging()
options = parse_args()
# Default setup options
options.quiet = options.xmlstep or options.xmlonly or options.quiet
cli.setupLogging("virt-install", options.debug, options.quiet)
check_cdrom_option_error(options)
cli.set_force(options.force)
cli.set_prompt(options.prompt)
parsermap = cli.build_parser_map(options)
if cli.check_option_introspection(options, parsermap):
return 0
if conn is None:
conn = cli.getConnection(options.connect)
if options.xmlstep not in [None, "1", "2", "3", "all"]:
fail(_("--print-step must be 1, 2, 3, or all"))
guest = build_guest_instance(conn, options, parsermap)
continue_inst = guest.get_continue_inst()
if options.xmlstep or options.xmlonly or options.dry:
xml = xml_to_print(guest, continue_inst,
options.xmlonly, options.xmlstep, options.dry)
if xml:
print_stdout(xml, do_force=True)
else:
start_install(guest, continue_inst, options)
return 0
if __name__ == "__main__":
try:
sys.exit(main())
except SystemExit, sys_e:
sys.exit(sys_e.code)
except KeyboardInterrupt:
logging.debug("", exc_info=True)
print_stderr(_("Installation aborted at user request"))
except Exception, main_e:
fail(main_e)