def parseExistingInstallation(self):
results = {}
if len(self.nodelist.getElementsByTagName('existing-installation')) == 0:
raise AnswerfileError, "No existing installation specified."
ei = getText(self.nodelist.getElementsByTagName('existing-installation')[0].childNodes)
if ei.startswith('iscsi:'):
# ei is a rfc4173 spec identifying a LUN in the iBFT.
# We should be logged into this already.
# Convert this spec into a disk location.
disk = diskutil.rfc4173_to_disk(ei)
else:
disk = normalize_disk(ei)
# If answerfile names a multipath replace with the master!
master = disktools.getMpathMaster(disk)
if master:
disk = master
results['primary-disk'] = disk
installations = product.findXenSourceProducts()
installations = filter(lambda x: x.primary_disk == disk or diskutil.idFromPartition(x.primary_disk) == disk, installations)
if len(installations) == 0:
raise AnswerfileError, "Could not locate the installation specified to be reinstalled."
elif len(installations) > 1:
xelogging.log("Warning: multiple paths detected - recommend use of --device_mapper_multipath=yes")
xelogging.log("Warning: selecting 1st path from %s" % str(map(lambda x: x.primary_disk, installations)))
results['installation-to-overwrite'] = installations[0]
return results
def parseUpgrade(self):
results = {}
results['install-type'] = constants.INSTALL_TYPE_REINSTALL
results.update(self.parseExistingInstallation())
results['preserve-settings'] = True
results['backup-existing-installation'] = True
target_nodes = self.nodelist.getElementsByTagName('primary-disk')
if len(target_nodes) == 1:
node_text = getText(target_nodes[0].childNodes)
if node_text.startswith('iscsi:'):
# node_text is an rfc4173 spec identifying a LUN in the
# iBFT. We should be logged into this already. Convert
# this spec into a disk location.
disk = diskutil.rfc4173_to_disk(node_text)
else:
disk = normalize_disk(node_text)
# If answerfile names a multipath replace with the master!
master = disktools.getMpathMaster(disk)
if master:
disk = master
results['primary-disk'] = disk
results.update(self.parseSource())
results.update(self.parseDriverSource())
results.update(self.parseBootloader())
return results
def normalize_disk(disk):
if disk.startswith('iscsi:'):
# An rfc4173 spec identifying a LUN in the iBFT. We
# should be logged into this already. Convert this spec into a
# disk location.
return diskutil.rfc4173_to_disk(disk)
if not disk.startswith('/dev/'):
disk = '/dev/' + disk
return diskutil.partitionFromId(disk)
def parseFreshInstall(self):
results = {}
results['install-type'] = constants.INSTALL_TYPE_FRESH
results['preserve-settings'] = False
# storage type (lvm or ext):
srtype_node = self.nodelist.getAttribute("srtype")
if srtype_node in ['', 'lvm']:
srtype = constants.SR_TYPE_LVM
elif srtype_node in ['ext']:
srtype = constants.SR_TYPE_EXT
else:
raise AnswerfileError, "Specified SR Type unknown. Should be 'lvm' or 'ext'."
results['sr-type'] = srtype
# initial-partitions:
results['initial-partitions'] = []
init_part_nodes = self.nodelist.getElementsByTagName('initial-partitions')
if len(init_part_nodes) == 1:
for part_node in init_part_nodes[0].getElementsByTagName('partition'):
try:
part = {}
for k in ('number', 'size', 'id'):
part[k] = int(part_node.getAttribute(k), 0)
results['initial-partitions'].append(part)
except:
pass
# zap-utility-partitions: do not preserve UP at install.
#
# Dell 11G servers (and later) only use the UP for factory install of XS but don't
# need it thereafter as they have a seperate utility flash drive for diagnostics.
# Installs to Dell 10G servers, however, should not zap the UP as they don't have a flash
# drive and need the UP persisted for diags. If UP present, it boots 1st & chainloads XS.
nodes = self.nodelist.getElementsByTagName('zap-utility-partitions')
results['zap-utility-partitions'] = (len(nodes) > 0)
# primary-disk:
pd = self.nodelist.getElementsByTagName('primary-disk')
pd_text = getText(pd[0].childNodes)
if pd_text.startswith('iscsi:'):
# pd_text is an rfc4173 spec identifying a LUN in the iBFT. We
# should be logged into this already. Convert this spec into a
# disk location.
disk = diskutil.rfc4173_to_disk(pd_text)
else:
disk = normalize_disk(pd_text)
# If we're using multipath and the answerfile names a multipath
# slave, then we want to install to the master!
master = disktools.getMpathMaster(disk)
if master:
disk = master
results['primary-disk'] = disk
pd_has_guest_storage = pd[0].getAttribute("gueststorage").lower() in ["", "yes", "true"]
results['sr-at-end'] = pd[0].getAttribute("sr-at-end").lower() in ["", "yes", "true"]
results['preserve-first-partition'] = pd[0].getAttribute("preserve-first-partition").lower() in ["yes", "true"]
# guest-disks:
results['guest-disks'] = []
if pd_has_guest_storage:
results['guest-disks'].append(results['primary-disk'])
for disknode in self.nodelist.getElementsByTagName('guest-disk'):
disk = normalize_disk(getText(disknode.childNodes))
# Replace references to multipath slaves with references to their multipath masters
master = disktools.getMpathMaster(disk)
if master:
# CA-38329: disallow device mapper nodes (except primary disk) as these won't exist
# at XenServer boot and therefore cannot be added as physical volumes to Local SR.
# Also, since the DM nodes are multipathed SANs it doesn't make sense to include them
# in the "Local" SR.
if master != results['primary-disk']:
raise AnswerfileError, "Answerfile specifies non-local disk %s to add to Local SR" % disk
disk = master
results['guest-disks'].append(disk)
results.update(self.parseSource())
results.update(self.parseDriverSource())
results.update(self.parseInterfaces())
results.update(self.parseRootPassword())
results.update(self.parseNSConfig())
results.update(self.parseTimeConfig())
results.update(self.parseKeymap())
results.update(self.parseBootloader())
return results