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# upgrade.py - Existing install probe and upgrade procedure |
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# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 Red Hat, Inc. |
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# 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): Matt Wilson <msw@redhat.com> |
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# |
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import isys |
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import os |
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import iutil |
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import time |
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import sys |
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import os.path |
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import shutil |
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import string |
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import selinux |
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from flags import flags |
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from constants import * |
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from product import productName |
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from storage import findExistingRootDevices, getReleaseString |
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from storage import mountExistingSystem |
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from storage.formats import getFormat |
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import gettext |
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_ = lambda x: gettext.ldgettext("anaconda", x) |
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import rpm |
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import logging |
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log = logging.getLogger("anaconda") |
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def queryUpgradeContinue(anaconda): |
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if anaconda.dir == DISPATCH_FORWARD: |
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return |
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rc = anaconda.intf.messageWindow(_("Proceed with upgrade?"), |
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_("The file systems of the Linux installation " |
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"you have chosen to upgrade have already been " |
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"mounted. You cannot go back past this point. " |
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"\n\n") + |
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_("Would you like to continue with the upgrade?"), |
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type="custom", custom_icon=["error","error"], |
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custom_buttons=[_("_Exit installer"), _("_Continue")]) |
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if rc == 0: |
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sys.exit(0) |
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return DISPATCH_FORWARD |
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def setUpgradeRoot(anaconda): |
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anaconda.id.upgradeRoot = [] |
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root_device = None |
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# kickstart can pass device as device name or uuid. No quotes allowed. |
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if anaconda.isKickstart and anaconda.id.ksdata.upgrade.root_device is not None: |
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root_device = anaconda.id.ksdata.upgrade.root_device |
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for (dev, label) in anaconda.id.rootParts: |
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if ((root_device is not None) and |
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(root_device == dev.name or root_device == "UUID=%s" % dev.format.uuid)): |
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anaconda.id.upgradeRoot.insert(0, (dev,label)) |
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else: |
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anaconda.id.upgradeRoot.append((dev,label)) |
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def findRootParts(anaconda): |
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if anaconda.dir == DISPATCH_BACK: |
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return |
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if anaconda.id.rootParts is None: |
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anaconda.id.rootParts = findExistingRoots(anaconda, |
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flags.cmdline.has_key("upgradeany")) |
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setUpgradeRoot(anaconda) |
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if anaconda.id.rootParts is not None and len(anaconda.id.rootParts) > 0: |
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anaconda.dispatch.skipStep("findinstall", skip = 0) |
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if productName.find("SME Server") == -1: |
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anaconda.dispatch.skipStep("installtype", skip = 1) |
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else: |
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anaconda.dispatch.skipStep("findinstall", skip = 1) |
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anaconda.dispatch.skipStep("installtype", skip = 0) |
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def findExistingRoots(anaconda, upgradeany=False): |
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rootparts = findExistingRootDevices(anaconda, upgradeany=upgradeany) |
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return rootparts |
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def bindMountDevDirectory(instPath): |
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getFormat("bind", |
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device="/dev", |
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mountpoint="/dev", |
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exists=True).mount(chroot=instPath) |
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# returns None if no filesystem exist to migrate |
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def upgradeMigrateFind(anaconda): |
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migents = anaconda.id.storage.migratableDevices |
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if not migents or len(migents) < 1: |
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anaconda.dispatch.skipStep("upgrademigratefs") |
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else: |
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anaconda.dispatch.skipStep("upgrademigratefs", skip = 0) |
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# returns None if no more swap is needed |
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def upgradeSwapSuggestion(anaconda): |
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# mem is in kb -- round it up to the nearest 4Mb |
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mem = iutil.memInstalled() |
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rem = mem % 16384 |
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if rem: |
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mem = mem + (16384 - rem) |
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mem = mem / 1024 |
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anaconda.dispatch.skipStep("addswap", 0) |
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# don't do this if we have more then 250 MB |
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if mem > 250: |
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anaconda.dispatch.skipStep("addswap", 1) |
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return |
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swap = iutil.swapAmount() / 1024 |
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# if we have twice as much swap as ram and at least 192 megs |
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# total, we're safe |
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if (swap >= (mem * 1.5)) and (swap + mem >= 192): |
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anaconda.dispatch.skipStep("addswap", 1) |
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return |
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# if our total is 512 megs or more, we should be safe |
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if (swap + mem >= 512): |
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anaconda.dispatch.skipStep("addswap", 1) |
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return |
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fsList = [] |
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for device in anaconda.id.storage.fsset.devices: |
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if not device.format: |
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continue |
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if device.format.mountable and device.format.linuxNative: |
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if not device.format.status: |
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continue |
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space = isys.pathSpaceAvailable(anaconda.rootPath + device.format.mountpoint) |
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if space > 16: |
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info = (device, space) |
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fsList.append(info) |
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suggestion = mem * 2 - swap |
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if (swap + mem + suggestion) < 192: |
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suggestion = 192 - (swap + mem) |
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if suggestion < 32: |
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suggestion = 32 |
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suggSize = 0 |
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suggMnt = None |
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for (device, size) in fsList: |
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if (size > suggSize) and (size > (suggestion + 100)): |
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suggDev = device |
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anaconda.id.upgradeSwapInfo = (fsList, suggestion, suggDev) |
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# XXX handle going backwards |
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def upgradeMountFilesystems(anaconda): |
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# mount everything and turn on swap |
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try: |
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mountExistingSystem(anaconda, |
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anaconda.id.upgradeRoot[0], |
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allowDirty = 0) |
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except ValueError as e: |
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log.error("Error mounting filesystem: %s" % e) |
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anaconda.intf.messageWindow(_("Mount failed"), |
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_("The following error occurred when mounting the file " |
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"systems listed in /etc/fstab. Please fix this problem " |
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"and try to upgrade again.\n%s" % e)) |
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sys.exit(0) |
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except IndexError as e: |
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# The upgrade root is search earlier but we give the message here. |
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log.debug("No upgrade root was found.") |
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if anaconda.isKickstart and anaconda.id.ksdata.upgrade.upgrade: |
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anaconda.intf.messageWindow(_("Upgrade root not found"), |
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_("The root for the previously installed system was not " |
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"found."), type="custom", |
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custom_icon="info", |
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custom_buttons=[_("Exit installer")]) |
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sys.exit(0) |
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else: |
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rc = anaconda.intf.messageWindow(_("Upgrade root not found"), |
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_("The root for the previously installed system was not " |
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"found. You can exit installer or backtrack to choose " |
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"installation instead of upgrade."), |
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type="custom", |
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custom_buttons = [ _("_Back"), |
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_("_Exit installer") ], |
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custom_icon="question") |
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if rc == 0: |
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return DISPATCH_BACK |
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elif rc == 1: |
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sys.exit(0) |
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checkLinks = ( '/etc', '/var', '/var/lib', '/var/lib/rpm', |
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'/boot', '/tmp', '/var/tmp', '/root', |
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'/bin/sh', '/usr/tmp') |
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badLinks = [] |
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for n in checkLinks: |
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if not os.path.islink(anaconda.rootPath + n): continue |
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l = os.readlink(anaconda.rootPath + n) |
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if l[0] == '/': |
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badLinks.append(n) |
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if badLinks: |
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message = _("The following files are absolute symbolic " |
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"links, which we do not support during an " |
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"upgrade. Please change them to relative " |
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"symbolic links and restart the upgrade.\n\n") |
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for n in badLinks: |
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message = message + '\t' + n + '\n' |
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anaconda.intf.messageWindow(_("Absolute Symlinks"), message) |
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sys.exit(0) |
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# fix for 80446 |
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badLinks = [] |
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mustBeLinks = ( '/usr/tmp', ) |
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for n in mustBeLinks: |
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if not os.path.islink(anaconda.rootPath + n): |
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badLinks.append(n) |
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if badLinks: |
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message = _("The following are directories which should instead " |
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"be symbolic links, which will cause problems with the " |
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"upgrade. Please return them to their original state " |
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"as symbolic links and restart the upgrade.\n\n") |
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for n in badLinks: |
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message = message + '\t' + n + '\n' |
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anaconda.intf.messageWindow(_("Invalid Directories"), message) |
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sys.exit(0) |
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anaconda.id.storage.turnOnSwap(upgrading=True) |
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anaconda.id.storage.mkDevRoot() |
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# Move /etc/rpm/platform out of the way. |
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if os.path.exists(anaconda.rootPath + "/etc/rpm/platform"): |
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shutil.move(anaconda.rootPath + "/etc/rpm/platform", |
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anaconda.rootPath + "/etc/rpm/platform.rpmsave") |
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# if they've been booting with selinux disabled, then we should |
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# disable it during the install as well (#242510) |
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try: |
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if os.path.exists(anaconda.rootPath + "/.autorelabel"): |
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ctx = selinux.getfilecon(anaconda.rootPath + "/.autorelabel")[1] |
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if not ctx or ctx == "unlabeled": |
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flags.selinux = False |
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log.info("Disabled SELinux for upgrade based on /.autorelabel") |
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except Exception, e: |
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log.warning("error checking selinux state: %s" %(e,)) |
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def setSteps(anaconda): |
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dispatch = anaconda.dispatch |
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dispatch.setStepList( |
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"language", |
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"keyboard", |
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"welcome", |
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"filtertype", |
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"filter", |
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"installtype", |
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"storageinit", |
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"findrootparts", |
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"findinstall", |
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"upgrademount", |
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"upgrademigfind", |
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"upgrademigratefs", |
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"enablefilesystems", |
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"upgradecontinue", |
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"reposetup", |
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"upgbootloader", |
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"checkdeps", |
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"dependencies", |
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"confirmupgrade", |
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"postselection", |
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"reipl", |
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"install", |
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"preinstallconfig", |
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"installpackages", |
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"postinstallconfig", |
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"instbootloader", |
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"dopostaction", |
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"methodcomplete", |
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"postscripts", |
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"copylogs", |
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"complete" |
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) |
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if not iutil.isX86() and not iutil.isS390(): |
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dispatch.skipStep("bootloader") |
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dispatch.skipStep("upgbootloader") |
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dispatch.skipStep("cleardiskssel", permanent=1) |
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