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# |
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# backend.py: Interface for installation backends |
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# |
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# Copyright (C) 2005, 2006, 2007 Red Hat, Inc. All rights reserved. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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# |
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# Author(s): Paul Nasrat <pnasrat@redhat.com> |
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# Jeremy Katz <katzj@redhat.com> |
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# |
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|
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import glob |
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import shutil |
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import iutil |
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import os, sys |
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import logging |
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from syslogd import syslog |
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from constants import * |
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|
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import isys |
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import kickstart |
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import packages |
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import storage |
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|
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from flags import flags |
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log = logging.getLogger("anaconda") |
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|
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import gettext |
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_ = lambda x: gettext.ldgettext("anaconda", x) |
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|
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class AnacondaBackend: |
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def __init__(self, anaconda): |
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"""Abstract backend class all backends should inherit from this |
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@param instPath: root path for the installation to occur""" |
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|
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self.instPath = anaconda.rootPath |
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self.instLog = None |
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self.modeText = "" |
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|
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# some backends may not support upgrading |
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self.supportsUpgrades = True |
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self.supportsPackageSelection = False |
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|
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# some backends may have a special case for rootfs formatting |
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# FIXME: we should handle this a little more elegantly |
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self.skipFormatRoot = False |
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self.rootFsType = None |
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|
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self._loopbackFile = None |
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|
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def postAction(self, anaconda): |
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pass |
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|
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def doPreSelection(self, intf, id, instPath): |
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pass |
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|
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def doPostSelection(self, anaconda): |
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pass |
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|
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def doPreInstall(self, anaconda): |
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self.initLog(anaconda.id, anaconda.rootPath) |
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|
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def copyFirmware(self, anaconda): |
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# Multiple driver disks may be loaded, so we need to glob for all |
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# the firmware files in the common DD firmware directory |
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for f in glob.glob(DD_FIRMWARE+"/*"): |
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try: |
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shutil.copyfile(f, "%s/lib/firmware/" % anaconda.rootPath) |
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except IOError, e: |
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log.error("Could not copy firmware file %s: %s" % (f, e.strerror)) |
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|
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def doPostInstall(self, anaconda): |
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has_iscsi_disk = False |
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|
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# See if we have an iscsi disk. If we do we rerun mkinitrd, as |
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# the initrd might need iscsi-initiator-utils, and chances are |
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# it was not installed yet the first time mkinitrd was run, as |
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# mkinitrd does not require it. |
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root = anaconda.id.storage.rootDevice |
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disks = anaconda.id.storage.devicetree.getDevicesByType("iscsi") |
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for disk in disks: |
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if root.dependsOn(disk): |
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has_iscsi_disk = True |
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break |
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|
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#always copy the firmware files from DD |
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self.copyFirmware(anaconda) |
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|
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if anaconda.id.extraModules or has_iscsi_disk: |
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for (n, arch, tag) in self.kernelVersionList(anaconda.rootPath): |
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packages.recreateInitrd(n, anaconda.rootPath) |
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|
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#copy RPMS |
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for d in glob.glob(DD_RPMS): |
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try: |
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shutil.copytree(d, anaconda.rootPath + "/root/" + os.path.basename(d)) |
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except OSError: |
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log.error("Couldn't copy %s to %s" % (d, anaconda.rootPath + "/root/" + os.path.basename(d))) |
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|
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#copy modules and firmware |
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if os.path.exists(DD_ALL): |
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try: |
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shutil.copytree(DD_ALL, anaconda.rootPath + "/root/DD") |
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except OSError, e: |
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log.error("Couldn't copy %s to %s" % (DD_ALL, anaconda.rootPath + "/root/DD")) |
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|
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storage.writeEscrowPackets(anaconda) |
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|
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sys.stdout.flush() |
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syslog.stop() |
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|
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def doInstall(self, anaconda): |
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log.warning("doInstall not implemented for backend!") |
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raise NotImplementedError |
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|
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def initLog(self, id, instPath): |
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upgrade = id.getUpgrade() |
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|
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if not os.path.isdir(instPath + "/root"): |
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iutil.mkdirChain(instPath + "/root") |
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|
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if upgrade: |
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logname = '/root/upgrade.log' |
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else: |
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logname = '/root/install.log' |
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|
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instLogName = instPath + logname |
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try: |
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shutil.rmtree (instLogName) |
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except OSError: |
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pass |
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|
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self.instLog = open(instLogName, "w+") |
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|
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syslogname = "%s%s.syslog" % (instPath, logname) |
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try: |
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shutil.rmtree (syslogname) |
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except OSError: |
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pass |
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syslog.start (instPath, syslogname) |
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|
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if upgrade: |
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self.modeText = _("Upgrading %s\n") |
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else: |
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self.modeText = _("Installing %s\n") |
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|
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def kernelVersionList(self, rootPath="/"): |
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return [] |
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|
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def getMinimumSizeMB(self, part): |
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"""Return the minimal size for part in megabytes if we can.""" |
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return 0 |
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|
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def doBackendSetup(self, anaconda): |
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log.warning("doBackendSetup not implemented for backend!") |
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raise NotImplementedError |
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|
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def groupExists(self, group): |
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log.warning("groupExists not implemented for backend!") |
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raise NotImplementedError |
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|
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def selectGroup(self, group, *args): |
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log.warning("selectGroup not implemented for backend!") |
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raise NotImplementedError |
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|
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def deselectGroup(self, group, *args): |
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log.warning("deselectGroup not implemented for backend!") |
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raise NotImplementedError |
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|
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def packageExists(self, pkg): |
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log.warning("packageExists not implemented for backend!") |
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raise NotImplementedError |
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|
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def selectPackage(self, pkg, *args): |
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log.warning("selectPackage not implemented for backend!") |
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raise NotImplementedError |
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|
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def deselectPackage(self, pkg, *args): |
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log.warning("deselectPackage not implemented for backend!") |
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raise NotImplementedError |
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|
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def getDefaultGroups(self, anaconda): |
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log.warning("getDefaultGroups not implemented for backend!") |
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raise NotImplementedError |
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|
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def resetPackageSelections(self): |
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# we just leave this one unimplemented if it's not needed |
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pass |
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|
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# write out the %packages section of anaconda-ks.cfg |
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def writePackagesKS(self, f, anaconda): |
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log.warning("writePackagesKS not implemented for backend!") |
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raise NotImplementedError |
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|
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# write out any config files that live on the installed system |
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# (e.g., /etc/yum.repos.d/* files) |
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def writeConfiguration(self): |
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log.warning("writeConfig not implemented for backend!") |
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raise NotImplementedError |
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|
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# write out any other kickstart bits the backend requires - no warning |
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# here because this may not be needed |
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def writeKS(self, f): |
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pass |
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|
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def getRequiredMedia(self): |
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log.warning("getRequiredMedia not implmented for backend!") |
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raise NotImplementedError |
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|
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def complete(self, anaconda): |
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pass |
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|
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def doBackendSetup(anaconda): |
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if anaconda.backend.doBackendSetup(anaconda) == DISPATCH_BACK: |
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return DISPATCH_BACK |
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|
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if anaconda.id.upgrade: |
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anaconda.backend.checkSupportedUpgrade(anaconda) |
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iutil.writeRpmPlatform(anaconda.rootPath) |
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|
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def doPostSelection(anaconda): |
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return anaconda.backend.doPostSelection(anaconda) |
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|
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def doPreInstall(anaconda): |
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anaconda.backend.doPreInstall(anaconda) |
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|
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def doPostInstall(anaconda): |
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anaconda.backend.doPostInstall(anaconda) |
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|
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def doInstall(anaconda): |
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return anaconda.backend.doInstall(anaconda) |
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|
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# does this need to be per-backend? we'll just leave here until it does :) |
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def doBasePackageSelect(anaconda): |
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if anaconda.isKickstart: |
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anaconda.backend.resetPackageSelections() |
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kickstart.selectPackages(anaconda) |
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else: |
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anaconda.backend.resetPackageSelections() |
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anaconda.id.instClass.setPackageSelection(anaconda) |
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anaconda.id.instClass.setGroupSelection(anaconda) |
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|
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def writeConfiguration(anaconda): |
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log.info("Writing main configuration") |
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anaconda.id.write() |
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anaconda.backend.writeConfiguration() |
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