qubes-installer-qubes-os/anaconda/pyanaconda/packaging/__init__.py
M. Vefa Bicakci 763c9b3490
anaconda: Do not rely on new-kernel-pkg
Qubes OS does not use grubby, so there is no need to check for the
existence of the new-kernel-pkg executable.
2016-04-10 00:00:00 -04:00

1306 lines
48 KiB
Python

# __init__.py
# Entry point for anaconda's software management module.
#
# Copyright (C) 2012 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.
#
# Red Hat Author(s): David Lehman <dlehman@redhat.com>
# Chris Lumens <clumens@redhat.com>
#
"""
TODO
- error handling!!!
- document all methods
"""
import os
import requests
import configparser
import shutil
from glob import glob
from fnmatch import fnmatch
import threading
import re
import functools
from pyanaconda.iutil import requests_session
from pyanaconda.iutil import open # pylint: disable=redefined-builtin
if __name__ == "__main__":
from pyanaconda import anaconda_log
anaconda_log.init()
from pyanaconda.constants import DRACUT_ISODIR, DRACUT_REPODIR, DD_ALL, DD_FIRMWARE, DD_RPMS, INSTALL_TREE, ISO_DIR
from pyanaconda.constants import THREAD_STORAGE, THREAD_WAIT_FOR_CONNECTING_NM, THREAD_PAYLOAD
from pyanaconda.constants import THREAD_PAYLOAD_RESTART
from pykickstart.constants import GROUP_ALL, GROUP_DEFAULT, GROUP_REQUIRED
from pyanaconda.flags import flags
from pyanaconda.i18n import _, N_
from pyanaconda import iutil
from pyanaconda import isys
from pyanaconda.image import findFirstIsoImage
from pyanaconda.image import mountImage
from pyanaconda.image import opticalInstallMedia, verifyMedia
from pyanaconda.iutil import ProxyString, ProxyStringError
from pyanaconda.threads import threadMgr, AnacondaThread
from pyanaconda.regexes import VERSION_DIGITS
from pykickstart.parser import Group
import logging
log = logging.getLogger("packaging")
from blivet.errors import StorageError
import blivet.util
import blivet.arch
from blivet.platform import platform
from blivet import setSysroot
from pyanaconda.product import productName, productVersion
USER_AGENT = "%s (anaconda)/%s" %(productName, productVersion)
from distutils.version import LooseVersion
REPO_NOT_SET = False
def versionCmp(v1, v2):
""" Compare two version number strings. """
firstVersion = LooseVersion(v1)
secondVersion = LooseVersion(v2)
return (firstVersion > secondVersion) - (firstVersion < secondVersion)
###
### ERROR HANDLING
###
class PayloadError(Exception):
pass
class MetadataError(PayloadError):
pass
class NoNetworkError(PayloadError):
pass
# setup
class PayloadSetupError(PayloadError):
pass
class ImageMissingError(PayloadSetupError):
pass
class ImageDirectoryMountError(PayloadSetupError):
pass
# software selection
class NoSuchGroup(PayloadError):
def __init__(self, group, adding=True, required=False):
PayloadError.__init__(self, group)
self.group = group
self.adding = adding
self.required = required
class NoSuchPackage(PayloadError):
def __init__(self, package, required=False):
PayloadError.__init__(self, package)
self.package = package
self.required = required
class DependencyError(PayloadError):
pass
# installation
class PayloadInstallError(PayloadError):
pass
class Payload(object):
""" Payload is an abstract class for OS install delivery methods. """
def __init__(self, data):
""" data is a kickstart.AnacondaKSHandler class
"""
if self.__class__ is Payload:
raise TypeError("Payload is an abstract class")
self.data = data
self.storage = None
self.instclass = None
self.txID = None
# A list of verbose error strings from the subclass
self.verbose_errors = []
self._session = requests_session()
def setup(self, storage, instClass):
""" Do any payload-specific setup. """
self.storage = storage
self.instclass = instClass
self.verbose_errors = []
def unsetup(self):
""" Invalidate a previously setup paylaod. """
self.storage = None
self.instclass = None
def preStorage(self):
""" Do any payload-specific work necessary before writing the storage
configuration. This method need not be provided by all payloads.
"""
pass
def release(self):
""" Release any resources in use by this object, but do not do final
cleanup. This is useful for dealing with payload backends that do
not get along well with multithreaded programs.
"""
pass
def reset(self):
""" Reset the instance, not including ksdata. """
pass
def prepareMountTargets(self, storage):
"""Run when physical storage is mounted, but other mount points may
not exist. Used by the RPMOSTreePayload subclass.
"""
pass
###
### METHODS FOR WORKING WITH REPOSITORIES
###
@property
def addOns(self):
""" A list of addon repo identifiers. """
return [r.name for r in self.data.repo.dataList()]
@property
def baseRepo(self):
"""
Get the identifier of the current base repo. or None
"""
return None
@property
def mirrorEnabled(self):
"""Is the closest/fastest mirror option enabled? This does not make
sense for those payloads that do not support this concept.
"""
return True
def isRepoEnabled(self, repo_id):
""" Return True if repo is enabled. """
repo = self.getAddOnRepo(repo_id)
if repo:
return repo.enabled
else:
return False
def getAddOnRepo(self, repo_id):
""" Return a ksdata Repo instance matching the specified repo id. """
repo = None
for r in self.data.repo.dataList():
if r.name == repo_id:
repo = r
break
return repo
def _repoNeedsNetwork(self, repo):
""" Returns True if the ksdata repo requires networking. """
urls = [repo.baseurl]
if repo.mirrorlist:
urls.extend(repo.mirrorlist)
network_protocols = ["http:", "ftp:", "nfs:", "nfsiso:"]
for url in urls:
if any(url.startswith(p) for p in network_protocols):
return True
return False
@property
def needsNetwork(self):
return any(self._repoNeedsNetwork(r) for r in self.data.repo.dataList())
def updateBaseRepo(self, fallback=True, checkmount=True):
""" Update the base repository from ksdata.method. """
pass
def gatherRepoMetadata(self):
pass
def addRepo(self, newrepo):
"""Add the repo given by the pykickstart Repo object newrepo to the
system. The repo will be automatically enabled and its metadata
fetched.
Duplicate repos will not raise an error. They should just silently
take the place of the previous value.
"""
# Add the repo to the ksdata so it'll appear in the output ks file.
self.data.repo.dataList().append(newrepo)
def removeRepo(self, repo_id):
repos = self.data.repo.dataList()
try:
idx = [repo.name for repo in repos].index(repo_id)
except ValueError:
log.error("failed to remove repo %s: not found", repo_id)
else:
repos.pop(idx)
def enableRepo(self, repo_id):
repo = self.getAddOnRepo(repo_id)
if repo:
repo.enabled = True
def disableRepo(self, repo_id):
repo = self.getAddOnRepo(repo_id)
if repo:
repo.enabled = False
###
### METHODS FOR WORKING WITH GROUPS
###
def languageGroups(self):
return []
def groupSelected(self, groupid):
return Group(groupid) in self.data.packages.groupList
def selectGroup(self, groupid, default=True, optional=False):
if optional:
include = GROUP_ALL
elif default:
include = GROUP_DEFAULT
else:
include = GROUP_REQUIRED
grp = Group(groupid, include=include)
if grp in self.data.packages.groupList:
# I'm not sure this would ever happen, but ensure that re-selecting
# a group with a different types set works as expected.
if grp.include != include:
grp.include = include
return
if grp in self.data.packages.excludedGroupList:
self.data.packages.excludedGroupList.remove(grp)
self.data.packages.groupList.append(grp)
def deselectGroup(self, groupid):
grp = Group(groupid)
if grp in self.data.packages.excludedGroupList:
return
if grp in self.data.packages.groupList:
self.data.packages.groupList.remove(grp)
self.data.packages.excludedGroupList.append(grp)
###
### METHODS FOR QUERYING STATE
###
@property
def spaceRequired(self):
""" The total disk space (Size) required for the current selection. """
raise NotImplementedError()
@property
def kernelVersionList(self):
""" An iterable of the kernel versions installed by the payload. """
raise NotImplementedError()
##
## METHODS FOR TREE VERIFICATION
##
def _getTreeInfo(self, url, proxy_url, sslverify):
""" Retrieve treeinfo and return the path to the local file.
:param baseurl: url of the repo
:type baseurl: string
:param proxy_url: Optional full proxy URL of or ""
:type proxy_url: string
:param sslverify: True if SSL certificate should be verified
:type sslverify: bool
:returns: Path to retrieved .treeinfo file or None
:rtype: string or None
"""
if not url:
return None
log.debug("retrieving treeinfo from %s (proxy: %s ; sslverify: %s)",
url, proxy_url, sslverify)
proxies = {}
if proxy_url:
try:
proxy = ProxyString(proxy_url)
proxies = {"http": proxy.url,
"https": proxy.url}
except ProxyStringError as e:
log.info("Failed to parse proxy for _getTreeInfo %s: %s",
proxy_url, e)
response = None
headers = {"user-agent": USER_AGENT}
try:
response = self._session.get("%s/.treeinfo" % url, headers=headers, proxies=proxies, verify=sslverify)
except requests.exceptions.RequestException as e:
try:
response = self._session.get("%s/treeinfo" % url, headers=headers, proxies=proxies, verify=sslverify)
except requests.exceptions.RequestException as e:
log.info("Error downloading treeinfo: %s", e)
self.verbose_errors.append(str(e))
response = None
if response:
# write the local treeinfo file
with open("/tmp/.treeinfo", "w") as f:
f.write(response.text)
# and also return the treeinfo contents as a string
return response.text
else:
return None
def _getReleaseVersion(self, url):
""" Return the release version of the tree at the specified URL. """
try:
version = re.match(VERSION_DIGITS, productVersion).group(1)
except AttributeError:
version = "rawhide"
log.debug("getting release version from tree at %s (%s)", url, version)
if hasattr(self.data.method, "proxy"):
proxy = self.data.method.proxy
else:
proxy = None
treeinfo = self._getTreeInfo(url, proxy, not flags.noverifyssl)
if treeinfo:
c = configparser.ConfigParser()
c.read(treeinfo)
try:
# Trim off any -Alpha or -Beta
version = re.match(VERSION_DIGITS, c.get("general", "version")).group(1)
except AttributeError:
version = "rawhide"
except configparser.Error:
pass
log.debug("got a release version of %s", version)
return version
##
## METHODS FOR MEDIA MANAGEMENT (XXX should these go in another module?)
##
@staticmethod
def _setupDevice(device, mountpoint):
""" Prepare an install CD/DVD for use as a package source. """
log.info("setting up device %s and mounting on %s", device.name, mountpoint)
# Is there a symlink involved? If so, let's get the actual path.
# This is to catch /run/install/isodir vs. /mnt/install/isodir, for
# instance.
realMountpoint = os.path.realpath(mountpoint)
if os.path.ismount(realMountpoint):
mdev = blivet.util.get_mount_device(realMountpoint)
if mdev:
log.warning("%s is already mounted on %s", mdev, mountpoint)
if mdev == device.path:
return
else:
try:
blivet.util.umount(realMountpoint)
except OSError as e:
log.error(str(e))
log.info("umount failed -- mounting on top of it")
try:
device.setup()
device.format.setup(mountpoint=mountpoint)
except StorageError as e:
log.error("mount failed: %s", e)
device.teardown(recursive=True)
raise PayloadSetupError(str(e))
@staticmethod
def _setupNFS(mountpoint, server, path, options):
""" Prepare an NFS directory for use as a package source. """
log.info("mounting %s:%s:%s on %s", server, path, options, mountpoint)
if os.path.ismount(mountpoint):
dev = blivet.util.get_mount_device(mountpoint)
_server, colon, _path = dev.partition(":")
if colon == ":" and server == _server and path == _path:
log.debug("%s:%s already mounted on %s", server, path, mountpoint)
return
else:
log.debug("%s already has something mounted on it", mountpoint)
try:
blivet.util.umount(mountpoint)
except OSError as e:
log.error(str(e))
log.info("umount failed -- mounting on top of it")
# mount the specified directory
url = "%s:%s" % (server, path)
if not options:
options = "nolock"
elif "nolock" not in options:
options += ",nolock"
try:
blivet.util.mount(url, mountpoint, fstype="nfs", options=options)
except OSError as e:
raise PayloadSetupError(str(e))
###
### METHODS FOR INSTALLING THE PAYLOAD
###
def preInstall(self, packages=None, groups=None):
""" Perform pre-installation tasks. """
iutil.mkdirChain(iutil.getSysroot() + "/root")
self._writeModuleBlacklist()
def install(self):
""" Install the payload. """
raise NotImplementedError()
def _writeModuleBlacklist(self):
""" Copy modules from modprobe.blacklist=<module> on cmdline to
/etc/modprobe.d/anaconda-blacklist.conf so that modules will
continue to be blacklisted when the system boots.
"""
if "modprobe.blacklist" not in flags.cmdline:
return
iutil.mkdirChain(iutil.getSysroot() + "/etc/modprobe.d")
with open(iutil.getSysroot() + "/etc/modprobe.d/anaconda-blacklist.conf", "w") as f:
f.write("# Module blacklists written by anaconda\n")
for module in flags.cmdline["modprobe.blacklist"].split():
f.write("blacklist %s\n" % module)
def _copyDriverDiskFiles(self):
# Multiple driver disks may be loaded, so we need to glob for all
# the firmware files in the common DD firmware directory
for f in glob(DD_FIRMWARE+"/*"):
try:
shutil.copyfile(f, "%s/lib/firmware/" % iutil.getSysroot())
except IOError as e:
log.error("Could not copy firmware file %s: %s", f, e.strerror)
#copy RPMS
for d in glob(DD_RPMS):
shutil.copytree(d, iutil.getSysroot() + "/root/" + os.path.basename(d))
#copy modules and firmware into root's home directory
if os.path.exists(DD_ALL):
try:
shutil.copytree(DD_ALL, iutil.getSysroot() + "/root/DD")
except IOError as e:
log.error("failed to copy driver disk files: %s", e.strerror)
# XXX TODO: real error handling, as this is probably going to
# prevent boot on some systems
def recreateInitrds(self):
""" Recreate the initrds by calling kernel-install
This needs to be done after all configuration files have been
written, since dracut depends on some of them.
:returns: None
"""
for kernel in self.kernelVersionList:
log.info("recreating initrd for %s", kernel)
if not flags.imageInstall:
iutil.execInSysroot("kernel-install",
["add", kernel, "/boot/vmlinuz-%s" % kernel])
else:
# hostonly is not sensible for disk image installations
# using /dev/disk/by-uuid/ is necessary due to disk image naming
iutil.execInSysroot("dracut",
["-N",
"--persistent-policy", "by-uuid",
"-f", "/boot/initramfs-%s.img" % kernel,
kernel])
def _setDefaultBootTarget(self):
""" Set the default systemd target for the system. """
if not os.path.exists(iutil.getSysroot() + "/etc/systemd/system"):
log.error("systemd is not installed -- can't set default target")
return
# If X was already requested we don't have to continue
if self.data.xconfig.startX:
return
try:
import rpm
except ImportError:
log.info("failed to import rpm -- not adjusting default runlevel")
else:
ts = rpm.TransactionSet(iutil.getSysroot())
# XXX one day this might need to account for anaconda's display mode
if ts.dbMatch("provides", 'service(graphical-login)').count() and \
ts.dbMatch('provides', 'xorg-x11-server-Xorg').count() and \
not flags.usevnc:
# We only manipulate the ksdata. The symlink is made later
# during the config write out.
self.data.xconfig.startX = True
def dracutSetupArgs(self):
args = []
try:
import rpm
except ImportError:
pass
else:
iutil.resetRpmDb()
ts = rpm.TransactionSet(iutil.getSysroot())
# Only add "rhgb quiet" on non-s390, non-serial installs
if iutil.isConsoleOnVirtualTerminal() and \
(ts.dbMatch('provides', 'rhgb').count() or \
ts.dbMatch('provides', 'plymouth').count()):
args.extend(["rhgb", "quiet"])
return args
def postInstall(self):
""" Perform post-installation tasks. """
# set default systemd target
self._setDefaultBootTarget()
# write out static config (storage, modprobe, keyboard, ??)
# kickstart should handle this before we get here
self._copyDriverDiskFiles()
def writeStorageEarly(self):
"""Some packaging payloads require that the storage configuration be
written out before doing installation. Right now, this is basically
just the dnfpayload. Payloads should only implement one of these
methods by overriding the unneeded one with a pass.
"""
if not flags.dirInstall:
self.storage.write()
def writeStorageLate(self):
"""Some packaging payloads require that the storage configuration be
written out after doing installation. Right now, this is basically
every payload except for dnf. Payloads should only implement one of
these methods by overriding the unneeded one with a pass.
"""
if not flags.dirInstall:
if iutil.getSysroot() != iutil.getTargetPhysicalRoot():
setSysroot(iutil.getTargetPhysicalRoot(), iutil.getSysroot())
# Now that we have the FS layout in the target, umount
# things that were in the legacy sysroot, and put them in
# the target root, except for the physical /. First,
# unmount all target filesystems.
self.storage.umountFilesystems()
# Explicitly mount the root on the physical sysroot
rootmnt = self.storage.mountpoints.get('/')
rootmnt.setup()
rootmnt.format.setup(options=rootmnt.format.options, chroot=iutil.getTargetPhysicalRoot())
self.prepareMountTargets(self.storage)
# Everything else goes in the target root, including /boot
# since the bootloader code will expect to find /boot
# inside the chroot.
self.storage.mountFilesystems(skipRoot=True)
self.storage.write()
# Inherit abstract methods from Payload
# pylint: disable=abstract-method
class ImagePayload(Payload):
""" An ImagePayload installs an OS image to the target system. """
def __init__(self, data):
if self.__class__ is ImagePayload:
raise TypeError("ImagePayload is an abstract class")
Payload.__init__(self, data)
# Inherit abstract methods from ImagePayload
# pylint: disable=abstract-method
class ArchivePayload(ImagePayload):
""" An ArchivePayload unpacks source archives onto the target system. """
def __init__(self, data):
if self.__class__ is ArchivePayload:
raise TypeError("ArchivePayload is an abstract class")
ImagePayload.__init__(self, data)
class PackagePayload(Payload):
""" A PackagePayload installs a set of packages onto the target system. """
DEFAULT_REPOS = [productName.split('-')[0].lower(), "rawhide"]
def __init__(self, data):
if self.__class__ is PackagePayload:
raise TypeError("PackagePayload is an abstract class")
super(PackagePayload, self).__init__(data)
self.install_device = None
self._rpm_macros = []
self.requiredPackages = []
self.requiredGroups = []
# Used to determine which add-ons to display for each environment.
# The dictionary keys are environment IDs. The dictionary values are two-tuples
# consisting of lists of add-on group IDs. The first list is the add-ons specific
# to the environment, and the second list is the other add-ons possible for the
# environment.
self._environmentAddons = {}
def preInstall(self, packages=None, groups=None):
super(PackagePayload, self).preInstall()
# Set rpm-specific options
# nofsync speeds things up at the risk of rpmdb data loss in a crash.
# But if we crash mid-install you're boned anyway, so who cares?
self.rpmMacros.append(('__dbi_htconfig', 'hash nofsync %{__dbi_other} %{__dbi_perms}'))
if self.data.packages.excludeDocs:
self.rpmMacros.append(('_excludedocs', '1'))
if self.data.packages.instLangs is not None:
# Use nil if instLangs is empty
self.rpmMacros.append(('_install_langs', self.data.packages.instLangs or '%{nil}'))
if flags.selinux:
for d in ["/tmp/updates",
"/etc/selinux/targeted/contexts/files",
"/etc/security/selinux/src/policy",
"/etc/security/selinux"]:
f = d + "/file_contexts"
if os.access(f, os.R_OK):
self.rpmMacros.append(('__file_context_path', f))
break
else:
self.rpmMacros.append(('__file_context_path', '%{nil}'))
# Add platform specific group
groupid = iutil.get_platform_groupid()
if groupid and groupid in self.groups:
if isinstance(groups, list):
log.info("Adding platform group %s", groupid)
groups.append(groupid)
else:
log.warning("Could not add %s to groups, not a list.", groupid)
elif groupid:
log.warning("Platform group %s not available.", groupid)
@property
def kernelPackages(self):
if "kernel" in self.data.packages.excludedList:
return []
kernels = ["kernel"]
if isys.isPaeAvailable():
kernels.insert(0, "kernel-PAE")
# most ARM systems use platform-specific kernels
if blivet.arch.isARM():
if platform.armMachine is not None:
kernels = ["kernel-%s" % platform.armMachine]
if isys.isLpaeAvailable():
kernels.insert(0, "kernel-lpae")
return kernels
@property
def kernelVersionList(self):
# Find all installed rpms that provide 'kernel'
# If a PackagePayload is in use, rpm needs to be available
try:
import rpm
except ImportError:
raise PayloadError("failed to import rpm-python, cannot determine kernel versions")
files = []
ts = rpm.TransactionSet(iutil.getSysroot())
mi = ts.dbMatch('providename', 'kernel')
for hdr in mi:
unicode_fnames = (f.decode("utf-8") for f in hdr.filenames)
# Find all /boot/vmlinuz- files and strip off vmlinuz-
files.extend((f.split("/")[-1][8:] for f in unicode_fnames
if fnmatch(f, "/boot/vmlinuz-*") or
fnmatch(f, "/boot/efi/EFI/%s/vmlinuz-*" % self.instclass.efi_dir)))
return sorted(files, key=functools.cmp_to_key(versionCmp))
@property
def rpmMacros(self):
"""A list of (name, value) pairs to define as macros in the rpm transaction."""
return self._rpm_macros
@rpmMacros.setter
def rpmMacros(self, value):
self._rpm_macros = value
def reset(self):
self.reset_install_device()
def reset_install_device(self):
""" Unmount the previous base repo and reset the install_device """
# cdrom: install_device.teardown (INSTALL_TREE)
# hd: umount INSTALL_TREE, install_device.teardown (ISO_DIR)
# nfs: umount INSTALL_TREE
# nfsiso: umount INSTALL_TREE, umount ISO_DIR
if os.path.ismount(INSTALL_TREE) and not flags.testing:
if self.install_device and \
blivet.util.get_mount_device(INSTALL_TREE) == self.install_device.path:
self.install_device.teardown(recursive=True)
else:
blivet.util.umount(INSTALL_TREE)
if os.path.ismount(ISO_DIR) and not flags.testing:
if self.install_device and \
blivet.util.get_mount_device(ISO_DIR) == self.install_device.path:
self.install_device.teardown(recursive=True)
# The below code will fail when nfsiso is the stage2 source
# But if we don't do this we may not be able to switch from
# one nfsiso repo to another nfsiso repo. We need to have a
# way to detect the stage2 state and work around it.
# Commenting out the below is a hack for F18. FIXME
#else:
# # NFS
# blivet.util.umount(ISO_DIR)
self.install_device = None
def _setupMedia(self, device):
method = self.data.method
if method.method == "harddrive":
self._setupDevice(device, mountpoint=ISO_DIR)
# check for ISO images in the newly mounted dir
path = ISO_DIR
if method.dir:
path = os.path.normpath("%s/%s" % (path, method.dir))
# XXX it would be nice to streamline this when we're just setting
# things back up after storage activation instead of having to
# pretend we don't already know which ISO image we're going to
# use
image = findFirstIsoImage(path)
if not image:
device.teardown(recursive=True)
raise PayloadSetupError("failed to find valid iso image")
if path.endswith(".iso"):
path = os.path.dirname(path)
# this could already be set up the first time through
if not os.path.ismount(INSTALL_TREE):
# mount the ISO on a loop
image = os.path.normpath("%s/%s" % (path, image))
mountImage(image, INSTALL_TREE)
if not method.dir.endswith(".iso"):
method.dir = os.path.normpath("%s/%s" % (method.dir,
os.path.basename(image)))
while method.dir.startswith("/"):
# riduculous
method.dir = method.dir[1:]
# Check to see if the device is already mounted, in which case
# we don't need to mount it again
elif method.method == "cdrom" and \
blivet.util.get_mount_paths(device.path):
return
else:
device.format.setup(mountpoint=INSTALL_TREE)
def _setupInstallDevice(self, storage, checkmount):
# XXX FIXME: does this need to handle whatever was set up by dracut?
method = self.data.method
sslverify = True
url = None
mirrorlist = None
# See if we already have stuff mounted due to dracut
isodev = blivet.util.get_mount_device(DRACUT_ISODIR)
device = blivet.util.get_mount_device(DRACUT_REPODIR)
if method.method == "harddrive":
if method.biospart:
log.warning("biospart support is not implemented")
devspec = method.biospart
else:
devspec = method.partition
needmount = True
# See if we used this method for stage2, thus dracut left it
if isodev and method.partition and method.partition in isodev \
and DRACUT_ISODIR in device:
# Everything should be setup
url = "file://" + DRACUT_REPODIR
needmount = False
# We don't setup an install_device here
# because we can't tear it down
isodevice = storage.devicetree.resolveDevice(devspec)
if needmount:
if not isodevice:
raise PayloadSetupError("device for HDISO install %s does not exist" % devspec)
self._setupMedia(isodevice)
url = "file://" + INSTALL_TREE
self.install_device = isodevice
elif method.method == "nfs":
# There are several possible scenarios here:
# 1. dracut could have mounted both the nfs repo and an iso and used
# the stage2 from inside the iso to boot from.
# isodev and device will be set in this case.
# 2. dracut could have mounted the nfs repo and used a stage2 from
# the NFS mount w/o mounting the iso.
# isodev will be None and device will be the nfs: path
# 3. dracut did not mount the nfs (eg. stage2 came from elsewhere)
# isodev and device are both None
# 4. The repo may not contain an iso, in that case use it as is
if isodev:
path = iutil.parseNfsUrl('nfs:%s' % isodev)[2]
# See if the dir holding the iso is what we want
# and also if we have an iso mounted to /run/install/repo
if path and path in isodev and DRACUT_ISODIR in device:
# Everything should be setup
url = "file://" + DRACUT_REPODIR
else:
# see if the nfs dir is mounted
needmount = True
if device:
_options, host, path = iutil.parseNfsUrl('nfs:%s' % device)
if method.server and method.server == host and \
method.dir and method.dir == path:
needmount = False
path = DRACUT_REPODIR
if needmount:
# Mount the NFS share on INSTALL_TREE. If it ends up
# being nfsiso we will move the mountpoint to ISO_DIR.
if method.dir.endswith(".iso"):
nfsdir = os.path.dirname(method.dir)
else:
nfsdir = method.dir
self._setupNFS(INSTALL_TREE, method.server, nfsdir,
method.opts)
path = INSTALL_TREE
# check for ISO images in the newly mounted dir
if method.dir.endswith(".iso"):
# if the given URL includes a specific ISO image file, use it
image_file = os.path.basename(method.dir)
path = os.path.normpath("%s/%s" % (path, image_file))
image = findFirstIsoImage(path)
# An image was found, mount it on INSTALL_TREE
if image:
if path.startswith(INSTALL_TREE):
# move the INSTALL_TREE mount to ISO_DIR so we can
# mount the contents of the iso there.
# work around inability to move shared filesystems
iutil.execWithRedirect("mount",
["--make-rprivate", "/"])
iutil.execWithRedirect("mount",
["--move", INSTALL_TREE, ISO_DIR])
# The iso is now under ISO_DIR
path = ISO_DIR
elif path.endswith(".iso"):
path = os.path.dirname(path)
# mount the ISO on a loop
image = os.path.normpath("%s/%s" % (path, image))
mountImage(image, INSTALL_TREE)
url = "file://" + INSTALL_TREE
else:
# Fall back to the mount path instead of a mounted iso
url = "file://" + path
elif method.method == "url":
url = method.url
mirrorlist = method.mirrorlist
sslverify = not (method.noverifyssl or flags.noverifyssl)
elif method.method == "cdrom" or (checkmount and not method.method):
# Did dracut leave the DVD or NFS mounted for us?
device = blivet.util.get_mount_device(DRACUT_REPODIR)
# Check for valid optical media if we didn't boot from one
if not verifyMedia(DRACUT_REPODIR):
self.install_device = opticalInstallMedia(storage.devicetree)
# Only look at the dracut mount if we don't already have a cdrom
if device and not self.install_device:
self.install_device = storage.devicetree.getDeviceByPath(device)
url = "file://" + DRACUT_REPODIR
if not method.method:
# See if this is a nfs mount
if ':' in device:
# prepend nfs: to the url as that's what the parser
# wants. Note we don't get options from this, but
# that's OK for the UI at least.
_options, host, path = iutil.parseNfsUrl("nfs:%s" % device)
method.method = "nfs"
method.server = host
method.dir = path
else:
method.method = "cdrom"
else:
if self.install_device:
if not method.method:
method.method = "cdrom"
self._setupMedia(self.install_device)
url = "file://" + INSTALL_TREE
elif method.method == "cdrom":
raise PayloadSetupError("no usable optical media found")
return url, mirrorlist, sslverify
###
### METHODS FOR WORKING WITH REPOSITORIES
###
@property
def repos(self):
"""A list of repo identifiers, not objects themselves."""
raise NotImplementedError()
def addDriverRepos(self):
""" Add driver repositories and packages
"""
# Drivers are loaded by anaconda-dracut, their repos are copied
# into /run/install/DD-X where X is a number starting at 1. The list of
# packages that were selected is in /run/install/dd_packages
# Add repositories
dir_num = 0
while True:
dir_num += 1
repo = "/run/install/DD-%d/" % dir_num
if not os.path.isdir(repo):
break
# Drivers may be under /<arch>/ or /DD-net/, but they can also be
# in the top level of the DD repo.
if os.path.isdir(repo+"DD-net"):
repo += "DD-net"
elif os.path.isdir(repo+blivet.arch.getArch()):
repo += blivet.arch.getArch()
# Run createrepo if there are rpms and no repodata
if not os.path.isdir(repo+"/repodata"):
rpms = glob(repo+"/*rpm")
if not rpms:
continue
log.info("Running createrepo on %s", repo)
iutil.execWithRedirect("createrepo_c", [repo])
ks_repo = self.data.RepoData(name="DD-%d" % dir_num,
baseurl="file://"+repo,
enabled=True)
self.addRepo(ks_repo)
# Add packages
if not os.path.exists("/run/install/dd_packages"):
return
with open("/run/install/dd_packages", "r") as f:
for line in f:
package = line.strip()
if package not in self.requiredPackages:
self.requiredPackages.append(package)
log.debug("required packages = %s", self.requiredPackages)
@property
def ISOImage(self):
""" The location of a mounted ISO repo, or None. """
if not self.data.method.method == "harddrive":
return None
# This could either be mounted to INSTALL_TREE or on
# DRACUT_ISODIR if dracut did the mount.
dev = blivet.util.get_mount_device(INSTALL_TREE)
if dev:
return dev[len(ISO_DIR)+1:]
dev = blivet.util.get_mount_device(DRACUT_ISODIR)
if dev:
return dev[len(DRACUT_ISODIR)+1:]
return None
###
### METHODS FOR WORKING WITH ENVIRONMENTS
###
@property
def environments(self):
raise NotImplementedError()
def environmentHasOption(self, environmentid, grpid):
raise NotImplementedError()
def environmentOptionIsDefault(self, environmentid, grpid):
raise NotImplementedError()
def environmentDescription(self, environmentid):
raise NotImplementedError()
def selectEnvironment(self, environmentid, excluded=None):
if environmentid not in self.environments:
raise NoSuchGroup(environmentid)
self.data.packages.environment = environmentid
if excluded is None:
excluded = []
def environmentGroups(self, environmentid, optional=True):
raise NotImplementedError()
@property
def environmentAddons(self):
return self._environmentAddons
def _isGroupVisible(self, grp):
raise NotImplementedError()
def _groupHasInstallableMembers(self, grp):
raise NotImplementedError()
def _refreshEnvironmentAddons(self):
log.info("Refreshing environmentAddons")
self._environmentAddons = {}
for environment in self.environments:
self._environmentAddons[environment] = ([], [])
# Determine which groups are specific to this environment and which other groups
# are available in this environment.
for grp in self.groups:
if not self._groupHasInstallableMembers(grp):
continue
elif self.environmentHasOption(environment, grp):
self._environmentAddons[environment][0].append(grp)
elif self._isGroupVisible(grp):
self._environmentAddons[environment][1].append(grp)
###
### METHODS FOR WORKING WITH GROUPS
###
@property
def groups(self):
raise NotImplementedError()
def groupDescription(self, groupid):
raise NotImplementedError()
class PayloadManager(object):
"""Framework for starting and watching the payload thread.
This class defines several states, and events can be triggered upon
reaching a state. Depending on whether a state has already been reached
when a listener is added, the event code may be run in either the
calling thread or the payload thread. The event code will block the
payload thread regardless, so try not to run anything that takes a long
time.
All states except STATE_ERROR are expected to happen linearly, and adding
a listener for a state that has already been reached or passed will
immediately trigger that listener. For example, if the payload thread is
currently in STATE_GROUP_MD, adding a listener for STATE_NETWORK will
immediately run the code being added for STATE_NETWORK.
The payload thread data should be accessed using the payloadMgr object,
and the running thread can be accessed using threadMgr with the
THREAD_PAYLOAD constant, if you need to wait for it or something. The
thread should be started using payloadMgr.restartThread.
"""
STATE_START = 0
# Waiting on storage
STATE_STORAGE = 1
# Waiting on network
STATE_NETWORK = 2
# Downloading package metadata
STATE_PACKAGE_MD = 3
# Downloading group metadata
STATE_GROUP_MD = 4
# All done
STATE_FINISHED = 5
# Error
STATE_ERROR = -1
# Error strings
ERROR_SETUP = N_("Failed to set up installation source")
ERROR_MD = N_("Error downloading package metadata")
ERROR_SOURCE = N_("No installation source available")
def __init__(self):
self._event_lock = threading.Lock()
self._event_listeners = {}
self._thread_state = self.STATE_START
self._error = None
# Initialize a list for each event state
for event_id in range(self.STATE_ERROR, self.STATE_FINISHED + 1):
self._event_listeners[event_id] = []
@property
def error(self):
return _(self._error)
def addListener(self, event_id, func):
"""Add a listener for an event.
:param int event_id: The event to listen for, one of the EVENT_* constants
:param function func: An object to call when the event is reached
"""
# Check that the event_id is valid
assert isinstance(event_id, int)
assert event_id <= self.STATE_FINISHED
assert event_id >= self.STATE_ERROR
# Add the listener inside the lock in case we need to run immediately,
# to make sure the listener isn't triggered twice
with self._event_lock:
self._event_listeners[event_id].append(func)
# If an error event was requested, run it if currently in an error state
if event_id == self.STATE_ERROR:
if event_id == self._thread_state:
func()
# Otherwise, run if the requested event has already occurred
elif event_id <= self._thread_state:
func()
def restartThread(self, storage, ksdata, payload, instClass, fallback=False, checkmount=True):
"""Start or restart the payload thread.
This method starts a new thread to restart the payload thread, so
this method's return is not blocked by waiting on the previous payload
thread. If there is already a payload thread restart pending, this method
has no effect.
:param blivet.Blivet storage: The blivet storage instance
:param kickstart.AnacondaKSHandler ksdata: The kickstart data instance
:param packaging.Payload payload: The payload instance
:param installclass.BaseInstallClass instClass: The install class instance
:param bool fallback: Whether to fall back to the default repo in case of error
:param bool checkmount: Whether to check for valid mounted media
"""
log.debug("Restarting payload thread")
# If a restart thread is already running, don't start a new one
if threadMgr.get(THREAD_PAYLOAD_RESTART):
return
# Launch a new thread so that this method can return immediately
threadMgr.add(AnacondaThread(name=THREAD_PAYLOAD_RESTART, target=self._restartThread,
args=(storage, ksdata, payload, instClass, fallback, checkmount)))
def _restartThread(self, storage, ksdata, payload, instClass, fallback, checkmount):
# Wait for the old thread to finish
threadMgr.wait(THREAD_PAYLOAD)
# Start a new payload thread
threadMgr.add(AnacondaThread(name=THREAD_PAYLOAD, target=self._runThread,
args=(storage, ksdata, payload, instClass, fallback, checkmount)))
def _setState(self, event_id):
# Update the current state
log.debug("Updating payload thread state: %d", event_id)
with self._event_lock:
# Update the state within the lock to avoid a race with listeners
# currently being added
self._thread_state = event_id
# Run any listeners for the new state
for func in self._event_listeners[event_id]:
func()
def _runThread(self, storage, ksdata, payload, instClass, fallback, checkmount):
# This is the thread entry
# Set the initial state
self._error = None
self._setState(self.STATE_START)
# Wait for storage
self._setState(self.STATE_STORAGE)
threadMgr.wait(THREAD_STORAGE)
# Wait for network
self._setState(self.STATE_NETWORK)
# FIXME: condition for cases where we don't want network
# (set and use payload.needsNetwork ?)
threadMgr.wait(THREAD_WAIT_FOR_CONNECTING_NM)
self._setState(self.STATE_PACKAGE_MD)
payload.setup(storage, instClass)
# If this is a non-package Payload, we're done
if not isinstance(payload, PackagePayload):
self._setState(self.STATE_FINISHED)
return
# Keep setting up package-based repositories
# Download package metadata
try:
payload.updateBaseRepo(fallback=fallback, checkmount=checkmount)
payload.addDriverRepos()
except (OSError, PayloadError) as e:
log.error("PayloadError: %s", e)
self._error = self.ERROR_SETUP
self._setState(self.STATE_ERROR)
payload.unsetup()
return
# Gather the group data
self._setState(self.STATE_GROUP_MD)
payload.gatherRepoMetadata()
payload.release()
# Check if that failed
if not payload.baseRepo:
log.error("No base repo configured")
self._error = self.ERROR_MD
self._setState(self.STATE_ERROR)
payload.unsetup()
return
self._setState(self.STATE_FINISHED)
# Initialize the PayloadManager instance
payloadMgr = PayloadManager()