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|
#
# backend.py: Interface for installation backends
#
# Paul Nasrat <pnasrat@redhat.com>
# Jeremy Katz <katzj@redhat.com>
#
# Copyright (c) 2005 Red Hat, Inc.
#
# This software may be freely redistributed under the terms of the GNU
# general public license.
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#
import shutil
import iutil
import os, sys
import logging
from syslogd import syslog
import kickstart
import packages
from rhpl.translate import _
from flags import flags
log = logging.getLogger("anaconda")
class AnacondaBackend:
def __init__(self, method, instPath):
"""Abstract backend class all backends should inherit from this
@param method: Object of InstallMethod type
@param instPath: root path for the installation to occur"""
self.method = method
self.instPath = instPath
self.instLog = None
self.modeText = ""
# some backends may not support upgrading
self.supportsUpgrades = True
self.supportsPackageSelection = False
def doPreSelection(self, intf, id, instPath):
pass
def doPostSelection(self, anaconda):
pass
def doPreInstall(self, anaconda):
self.initLog(anaconda.id, anaconda.rootPath)
def copyDriverDiskModules(self, anaconda):
"""Copy over modules from a driver disk."""
kernelVersions = self.kernelVersionList()
foundModule = 0
try:
f = open("/etc/arch")
arch = f.readline().strip()
del f
except IOError:
arch = os.uname()[2]
for (path, name) in anaconda.id.extraModules:
if not path:
path = "/modules.cgz"
pattern = ""
names = ""
for (n, arch, tag) in kernelVersions:
if tag == "base":
pkg = "kernel"
else:
pkg = "kernel-%s" %(tag,)
# version 1 path
pattern = pattern + " %s/%s/%s.ko " % (n, arch, name)
# version 0 path
pattern = pattern + " %s/%s.ko " % (n, name)
names = names + " %s.ko" % (name,)
command = ("cd %s/lib/modules; gunzip < %s | "
"%s/bin/cpio --quiet -iumd %s" %
(anaconda.rootPath, path, anaconda.rootPath, pattern))
log.info("running: '%s'" % (command, ))
os.system(command)
for (n, arch, tag) in kernelVersions:
if tag == "base":
pkg = "kernel"
else:
pkg = "kernel-%s" %(tag,)
toDir = "%s/lib/modules/%s/updates" % \
(anaconda.rootPath, n)
to = "%s/%s.ko" % (toDir, name)
if (os.path.isdir("%s/lib/modules/%s" %(anaconda.rootPath, n)) and not
os.path.isdir("%s/lib/modules/%s/updates" %(anaconda.rootPath, n))):
os.mkdir("%s/lib/modules/%s/updates" %(anaconda.rootPath, n))
if not os.path.isdir(toDir):
continue
for p in ("%s/%s.ko" %(arch, name), "%s.ko" %(name,)):
fromFile = "%s/lib/modules/%s/%s" % (anaconda.rootPath, n, p)
if (os.access(fromFile, os.R_OK)):
log.info("moving %s to %s" % (fromFile, to))
os.rename(fromFile, to)
# the file might not have been owned by root in the cgz
os.chown(to, 0, 0)
foundModule = 1
else:
log.warning("missing DD module %s (this may be okay)" %
fromFile)
if foundModule == 1:
for (n, arch, tag) in kernelVersions:
packages.recreateInitrd(n, anaconda.rootPath)
def doPostInstall(self, anaconda):
self.copyDriverDiskModules(anaconda)
sys.stdout.flush()
if flags.setupFilesystems:
syslog.stop()
def doInstall(self, anaconda):
log.warning("doInstall not implemented for backend!")
pass
def initLog(self, id, instPath):
upgrade = id.getUpgrade()
if not os.path.isdir(instPath + "/root"):
iutil.mkdirChain(instPath + "/root")
if upgrade:
logname = '/root/upgrade.log'
else:
logname = '/root/install.log'
instLogName = instPath + logname
try:
shutil.rmtree (instLogName)
except OSError:
pass
self.instLog = open(instLogName, "w+")
# dont start syslogd if we arent creating filesystems
if flags.setupFilesystems:
syslogname = "%s%s.syslog" % (instPath, logname)
try:
shutil.rmtree (syslogname)
except OSError:
pass
syslog.start (instPath, syslogname)
else:
syslogname = None
if upgrade:
self.modeText = _("Upgrading %s\n")
else:
self.modeText = _("Installing %s\n")
def kernelVersionList(self):
return []
def doInitialSetup(self, anaconda):
pass
def doRepoSetup(self, anaconda):
log.warning("doRepoSetup not implemented for backend!")
pass
def groupExists(self, group):
log.warning("groupExists not implemented for backend!")
pass
def selectGroup(self, group, *args):
log.warning("selectGroup not implemented for backend!")
pass
def deselectGroup(self, group, *args):
log.warning("deselectGroup not implemented for backend!")
pass
def packageExists(self, pkg):
log.warning("packageExists not implemented for backend!")
pass
def selectPackage(self, pkg, *args):
log.warning("selectPackage not implemented for backend!")
pass
def deselectPackage(self, pkg, *args):
log.warning("deselectPackage not implemented for backend!")
pass
def getDefaultGroups(self, anaconda):
log.warning("getDefaultGroups not implemented for backend!")
pass
def writePackagesKS(self, f):
log.warning("writePackagesKS not implemented for backend!")
pass
def writeConfiguration(self):
log.warning("writeConfig not implemented for backend!")
pass
def getRequiredMedia(self):
log.warning("getRequiredMedia not implmented for backend!")
pass
def doRepoSetup(anaconda):
anaconda.backend.doInitialSetup(anaconda)
anaconda.backend.doRepoSetup(anaconda)
if anaconda.id.upgrade:
anaconda.backend.checkSupportedUpgrade(anaconda)
def doPostSelection(anaconda):
return anaconda.backend.doPostSelection(anaconda)
def doPreInstall(anaconda):
anaconda.backend.doPreInstall(anaconda)
def doPostInstall(anaconda):
anaconda.backend.doPostInstall(anaconda)
def doInstall(anaconda):
anaconda.backend.doInstall(anaconda)
# does this need to be per-backend? we'll just leave here until it does :)
def doBasePackageSelect(anaconda):
if anaconda.isKickstart:
kickstart.selectPackages(anaconda)
else:
anaconda.id.instClass.setPackageSelection(anaconda)
anaconda.id.instClass.setGroupSelection(anaconda)
def writeConfiguration(anaconda):
log.info("Writing main configuration")
if not flags.test:
anaconda.id.write(anaconda)
anaconda.backend.writeConfiguration()
|
