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authorLars Müller <lmuelle@samba.org>2006-02-21 17:35:52 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 11:10:18 -0500
commit8176d4c9fe67701c7f2a71d6911961e16d843e1a (patch)
treea0355638c7252570d3e1e8d6c1c288fcfde08e9e /examples/scripts/debugging/linux
parent3c892fdf4f5a33801762e3faa403d2ecb5c1b574 (diff)
r13598: Defining KRB5KRB_ERR_RESPONSE_TOO_BIG if not defined which is the case
for older krb5 implementations. Patch slightly modified from the version provided by Björn Jacke <bjoern at j3e dot de> at the samba-technical list after discussion on the list and by IRC. Thanks Björn! (This used to be commit 49e6431c06c70088907c31e2da1ec83a09377015)
Diffstat (limited to 'examples/scripts/debugging/linux')
0 files changed, 0 insertions, 0 deletions
generated by cgit (git 2.34.1) at 2026-04-19 01:44:49 +0000
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#
# upgrade.py - Existing install probe and upgrade procedure
#
# Matt Wilson <msw@redhat.com>
#
# Copyright 2001-2003 Red Hat, Inc.
#
# This software may be freely redistributed under the terms of the GNU
# library public license.
#
# You should have received a copy of the GNU Library Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#

import isys
import os
import iutil
import time
import rpm
import sys
import os.path
import partedUtils
import string
import shutil
import lvm
import hdrlist
from flags import flags
from fsset import *
from partitioning import *
from constants import *
from installmethod import FileCopyException

from rhpl.log import log
from rhpl.translate import _

upgrade_remove_blacklist = ("linuxconf", "linuxconf-devel", "gnome-linuxconf")

def findRootParts(intf, id, dispatch, dir, chroot):
    if dir == DISPATCH_BACK:
        return
    if id.rootParts is None:
        id.rootParts = findExistingRoots(intf, id, chroot)

    id.upgradeRoot = []
    for (dev, fs, meta) in id.rootParts:
        id.upgradeRoot.append( (dev, fs) )

    if id.rootParts is not None and len(id.rootParts) > 0:
        dispatch.skipStep("findinstall", skip = 0)
        dispatch.skipStep("installtype", skip = 1)
    else:
        dispatch.skipStep("findinstall", skip = 1)
        dispatch.skipStep("installtype", skip = 0)

def findExistingRoots(intf, id, chroot, upgradeany = 0):
    if not flags.setupFilesystems: return [(chroot, 'ext2', "")]

    diskset = partedUtils.DiskSet()
    diskset.openDevices()
    
    win = intf.progressWindow(_("Searching"),
                              _("Searching for %s installations...") %
                              (productName,), 5)

    rootparts = diskset.findExistingRootPartitions(intf, chroot,
                                                   upgradeany = upgradeany)
    for i in range(1, 6):
        time.sleep(0.5)
        win.set(i)

    win.pop()

    # close the devices to make sure we don't leave things sitting open 
    diskset.closeDevices()

    # this is a hack... need to clear the skipped disk list after this
    partedUtils.DiskSet.skippedDisks = []

    return rootparts

def getDirtyDevString(dirtyDevs):
    ret = ""
    for dev in dirtyDevs:
        if dev != "loop":
            ret = "/dev/%s\n" % (dev,)
        else:
            ret = "%s\n" % (dev,)
    return ret

def mountRootPartition(intf, rootInfo, oldfsset, instPath, allowDirty = 0,
		       raiseErrors = 0, warnDirty = 0, readOnly = 0):
    (root, rootFs) = rootInfo

    diskset = partedUtils.DiskSet()
    diskset.openDevices()
    diskset.startAllRaid()
    lvm.vgscan()
    lvm.vgactivate()

    log("going to mount %s on %s as %s" %(root, instPath, rootFs))
    isys.mount(root, instPath, rootFs)

    oldfsset.reset()
    newfsset = fsset.readFstab(instPath + '/etc/fstab', intf)
    for entry in newfsset.entries:
        oldfsset.add(entry)

    isys.umount(instPath)        

    dirtyDevs = oldfsset.hasDirtyFilesystems(instPath)
    if not allowDirty and dirtyDevs != []:
        diskset.stopAllRaid()
        lvm.vgdeactivate()
	intf.messageWindow(_("Dirty File Systems"),
                           _("The following file systems for your Linux system "
                             "were not unmounted cleanly.  Please boot your "
                             "Linux installation, let the file systems be "
                             "checked and shut down cleanly to upgrade.\n"
                             "%s" %(getDirtyDevString(dirtyDevs),)))
	sys.exit(0)
    elif warnDirty and dirtyDevs != []:
        rc = intf.messageWindow(_("Dirty File Systems"),
                                _("The following file systems for your Linux "
                                  "system were not unmounted cleanly.  Would "
                                  "you like to mount them anyway?\n"
                                  "%s" % (getDirtyDevString(dirtyDevs,))),
                                type = "yesno")
        if rc == 0:
            return -1

    if flags.setupFilesystems:
        oldfsset.mountFilesystems(instPath, readOnly = readOnly)

    # XXX we should properly support 'auto' at some point
    if (not oldfsset.getEntryByMountPoint("/") or
        not oldfsset.getEntryByMountPoint("/").fsystem or
        not oldfsset.getEntryByMountPoint("/").fsystem.isMountable()):
        raise RuntimeError, "/etc/fstab did not list a fstype for the root partition which we support"

# returns None if no filesystem exist to migrate
def upgradeMigrateFind(dispatch, thefsset):
    migents = thefsset.getMigratableEntries()
    if not migents or len(migents) < 1:
        dispatch.skipStep("upgrademigratefs")
    else:
        dispatch.skipStep("upgrademigratefs", skip = 0)
    

# returns None if no more swap is needed
def upgradeSwapSuggestion(dispatch, id, instPath):
    # mem is in kb -- round it up to the nearest 4Mb
    mem = iutil.memInstalled()
    rem = mem % 16384
    if rem:
	mem = mem + (16384 - rem)
    mem = mem / 1024

    dispatch.skipStep("addswap", 0)
    
    # don't do this if we have more then 250 MB
    if mem > 250:
        dispatch.skipStep("addswap", 1)
        return
    
    swap = iutil.swapAmount() / 1024

    # if we have twice as much swap as ram and at least 192 megs
    # total, we're safe 
    if (swap >= (mem * 1.5)) and (swap + mem >= 192):
        dispatch.skipStep("addswap", 1)
	return

    # if our total is 512 megs or more, we should be safe
    if (swap + mem >= 512):
        dispatch.skipStep("addswap", 1)
	return

    fsList = []

    for entry in id.fsset.entries:
        if entry.fsystem.getName() in fsset.getUsableLinuxFs():
            if flags.setupFilesystems and not entry.isMounted():
                continue
            space = isys.pathSpaceAvailable(instPath + entry.mountpoint)
            if space > 16:
                info = (entry.mountpoint, entry.device.getDevice(), space)
                fsList.append(info)

    suggestion = mem * 2 - swap
    if (swap + mem + suggestion) < 192:
        suggestion = 192 - (swap + mem)
    if suggestion < 32:
        suggestion = 32
    suggSize = 0
    suggMnt = None
    for (mnt, part, size) in fsList:
	if (size > suggSize) and (size > (suggestion + 100)):
	    suggMnt = mnt

    id.upgradeSwapInfo = (fsList, suggestion, suggMnt)

def swapfileExists(swapname):
    try:
        os.lstat(swapname)
	return 1
    except:
	return 0

def createSwapFile(instPath, theFsset, mntPoint, size):
    fstabPath = instPath + "/etc/fstab"
    prefix = ""

    if mntPoint != "/":
        file = mntPoint + "/SWAP"
    else:
        file = "/SWAP"

    swapFileDict = {}
    for entry in theFsset.entries:
        if entry.fsystem.getName() == "swap":
            swapFileDict[entry.device.getName()] = 1
        
    count = 0
    while (swapfileExists(instPath + file) or 
	   swapFileDict.has_key(file)):
	count = count + 1
	tmpFile = "/SWAP-%d" % (count)
        if mntPoint != "/":
            file = mntPoint + tmpFile
        else:
            file = tmpFile

    device = SwapFileDevice(file)
    device.setSize(size)
    fsystem = fileSystemTypeGet("swap")
    entry = FileSystemSetEntry(device, "swap", fsystem)
    entry.setFormat(1)
    theFsset.add(entry)
    theFsset.formatEntry(entry, instPath)
    theFsset.turnOnSwap(instPath)

    # XXX generalize fstab modification
    f = open(fstabPath, "a")
    format = "%-23s %-23s %-7s %-15s %d %d\n";
    f.write(format % (prefix + file, "swap", "swap", "defaults", 0, 0))
    f.close()

# XXX handle going backwards
def upgradeMountFilesystems(intf, rootInfo, oldfsset, instPath):
    # mount everything and turn on swap

    if flags.setupFilesystems:
	try:
	    mountRootPartition(intf, rootInfo[0], oldfsset, instPath,
                               allowDirty = 0)
	except SystemError, msg:
	    intf.messageWindow(_("Mount failed"),
		_("One or more of the file systems listed in the "
		  "/etc/fstab on your Linux system cannot be mounted. "
		  "Please fix this problem and try to upgrade again."))
	    sys.exit(0)
        except RuntimeError, msg:
            intf.messageWindow(_("Mount failed"),
		_("One or more of the file systems listed in the "
                  "/etc/fstab of your Linux system are inconsistent and "
                  "cannot be mounted.  Please fix this problem and try to "
                  "upgrade again."))
            sys.exit(0)

	checkLinks = ( '/etc', '/var', '/var/lib', '/var/lib/rpm',
		       '/boot', '/tmp', '/var/tmp', '/root',
                       '/bin/sh', '/usr/tmp')
	badLinks = []
	for n in checkLinks:
	    if not os.path.islink(instPath + n): continue
	    l = os.readlink(instPath + n)
	    if l[0] == '/':
		badLinks.append(n)

	if badLinks:
	    message = _("The following files are absolute symbolic " 
			"links, which we do not support during an " 
			"upgrade. Please change them to relative "
			"symbolic links and restart the upgrade.\n\n")
	    for n in badLinks:
		message = message + '\t' + n + '\n'
	    intf.messageWindow(_("Absolute Symlinks"), message)
	    sys.exit(0)

        # fix for 80446
        badLinks = []
        mustBeLinks = ( '/usr/tmp', )
        for n in mustBeLinks:
            if not os.path.islink(instPath + n):
                badLinks.append(n)

        if badLinks: 
	    message = _("The following are directories which should instead "
                        "be symbolic links, which will cause problems with the "
                        "upgrade.  Please return them to their original state "
                        "as symbolic links and restart the upgrade.\n\n")
            for n in badLinks:
                message = message + '\t' + n + '\n'
	    intf.messageWindow(_("Invalid Directories"), message)
	    sys.exit(0)
           
    else:
        if not os.access (instPath + "/etc/fstab", os.R_OK):
            rc = intf.messageWindow(_("Warning"),
                                    _("%s not found")
                                    % (instPath + "/etc/fstab",),
                                  type="ok")
            return DISPATCH_BACK
            
	newfsset = fsset.readFstab(instPath + '/etc/fstab', intf)
        for entry in newfsset.entries:
            oldfsset.add(entry)
        
    if flags.setupFilesystems:
        oldfsset.turnOnSwap(instPath)

# move the old pre-convert db back in case of problems
def resetRpmdb(olddb, instPath):
    if olddb is not None:
        iutil.rmrf(instPath + "/var/lib/rpm")
        os.rename (olddb, instPath + "/var/lib/rpm")    

rebuildTime = None

def upgradeFindPackages(intf, method, id, instPath, dir):
    if dir == DISPATCH_BACK:
        return
    global rebuildTime
    if not rebuildTime:
	rebuildTime = str(int(time.time()))
    try:
        method.mergeFullHeaders(id.grpset.hdrlist)
    except FileCopyException:
        method.unmountCD()
        intf.messageWindow(_("Error"),
                           _("Unable to merge header list.  This may be "
                             "due to a missing file or bad media.  "
                             "Press <return> to try again."))

    # if we've been through here once for this root, then short-circuit
    if ((id.upgradeInfoFound is not None) and 
        (id.upgradeInfoFound == id.upgradeRoot)):
        log("already found packages to upgrade for %s" %(id.upgradeRoot,))
        return
    else:
        id.upgradeInfoFound = id.upgradeRoot

    win = intf.waitWindow(_("Finding"),
                          _("Finding packages to upgrade..."))

    # now, set the system clock so the timestamps will be right:
    if flags.setupFilesystems:
        iutil.setClock(instPath)

    # we should only have to rebuild for upgrades of pre rpm 4.0.x systems
    # according to jbj
    if (os.access(instPath + "/var/lib/rpm/packages.rpm", os.R_OK) and
        not os.access(instPath + "/var/lib/rpm/Packages", os.R_OK)):
        win.pop()
        intf.messageWindow(_("Error"),
                           _("The installation program is unable to upgrade "
                             "systems with a pre-rpm 4.x database. "
                             "Please install the errata rpm packages "
                             "for your release as described in the release "
                             "notes and then run the upgrade procedure."))
        sys.exit(0)
        
    else:
        id.dbpath = None
        
    try:
        import findpackageset