X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=source%2Fsteps%2FInstallPartitionDisks.py;h=1bede6e0ca0d692d3f0f7eb107323038482ee6ea;hb=cbfe4dffae07239f643598d1ac76940985973507;hp=42ce5e5baf0df5b2efa496aae8daf7588ba6ec1f;hpb=48bd014c62be29904375de5144350bc935a4c029;p=bootmanager.git diff --git a/source/steps/InstallPartitionDisks.py b/source/steps/InstallPartitionDisks.py index 42ce5e5..1bede6e 100644 --- a/source/steps/InstallPartitionDisks.py +++ b/source/steps/InstallPartitionDisks.py @@ -1,5 +1,5 @@ -#!/usr/bin/python2 - +#!/usr/bin/python +# # Copyright (c) 2003 Intel Corporation # All rights reserved. # @@ -10,13 +10,12 @@ import os, sys import string import popen2 - +import time from Exceptions import * import utils import BootServerRequest -import compatibility - +import BootAPI import ModelOptions def Run( vars, log ): @@ -28,7 +27,6 @@ def Run( vars, log ): TEMP_PATH somewhere to store what we need to run ROOT_SIZE the size of the root logical volume SWAP_SIZE the size of the swap partition - BOOT_CD_VERSION A tuple of the current bootcd version """ log.write( "\n\nStep: Install: partitioning disks.\n" ) @@ -51,28 +49,27 @@ def Run( vars, log ): if SWAP_SIZE == "" or SWAP_SIZE == 0: raise ValueError, "SWAP_SIZE invalid" - BOOT_CD_VERSION= vars["BOOT_CD_VERSION"] - if BOOT_CD_VERSION == "": - raise ValueError, "BOOT_CD_VERSION" - NODE_MODEL_OPTIONS= vars["NODE_MODEL_OPTIONS"] PARTITIONS= vars["PARTITIONS"] if PARTITIONS == None: raise ValueError, "PARTITIONS" + if NODE_MODEL_OPTIONS & ModelOptions.RAWDISK: + VSERVERS_SIZE= "-1" + if "VSERVERS_SIZE" in vars: + VSERVERS_SIZE= vars["VSERVERS_SIZE"] + if VSERVERS_SIZE == "" or VSERVERS_SIZE == 0: + raise ValueError, "VSERVERS_SIZE" + except KeyError, var: raise BootManagerException, "Missing variable in vars: %s\n" % var except ValueError, var: raise BootManagerException, "Variable in vars, shouldn't be: %s\n" % var - bs_request= BootServerRequest.BootServerRequest() + bs_request= BootServerRequest.BootServerRequest(vars) - # old cds need extra utilities to partition disks and setup lvm - if BOOT_CD_VERSION[0] == 2: - compatibility.setup_partdisks_2x_cd( vars, log ) - # disable swap if its on utils.sysexec_noerr( "swapoff %s" % PARTITIONS["swap"], log ) @@ -83,18 +80,23 @@ def Run( vars, log ): utils.sysexec_noerr( "lvremove -f %s" % PARTITIONS["swap"], log ) utils.sysexec_noerr( "lvremove -f %s" % PARTITIONS["vservers"], log ) utils.sysexec_noerr( "vgchange -an", log ) - utils.sysexec_noerr( "vgremove planetlab", log ) + utils.sysexec_noerr( "vgremove -f planetlab", log ) log.write( "Running vgscan for devices\n" ) utils.sysexec_noerr( "vgscan", log ) used_devices= [] + INSTALL_BLOCK_DEVICES.sort() for device in INSTALL_BLOCK_DEVICES: if single_partition_device( device, vars, log ): - used_devices.append( device ) - log.write( "Successfully initialized %s\n" % device ) + if (len(used_devices) > 0 and + (vars['NODE_MODEL_OPTIONS'] & ModelOptions.RAWDISK)): + log.write( "Running in raw disk mode, not using %s.\n" % device ) + else: + used_devices.append( device ) + log.write( "Successfully initialized %s\n" % device ) else: log.write( "Unable to partition %s, not using it.\n" % device ) continue @@ -102,15 +104,22 @@ def Run( vars, log ): # list of devices to be used with vgcreate vg_device_list= "" - # initialize the physical volumes + # get partitions + partitions = [] for device in used_devices: - part_path= get_partition_path_from_device( device, vars, log ) - + partitions.append(part_path) + + # create raid partition + raid_partition = create_raid_partition(partitions, vars, log) + if raid_partition != None: + partitions = [raid_partition] + log.write("PARTITIONS %s\n" % str(partitions)) + # initialize the physical volumes + for part_path in partitions: if not create_lvm_physical_volume( part_path, vars, log ): raise BootManagerException, "Could not create lvm physical volume " \ "on partition %s" % part_path - vg_device_list = vg_device_list + " " + part_path # create an lvm volume group @@ -122,17 +131,22 @@ def Run( vars, log ): # create root logical volume utils.sysexec( "lvcreate -L%s -nroot planetlab" % ROOT_SIZE, log ) - # create vservers logical volume with all remaining space - # first, we need to get the number of remaining extents we can use - remaining_extents= get_remaining_extents_on_vg( vars, log ) - - utils.sysexec( "lvcreate -l%s -nvservers planetlab" % remaining_extents, log ) + if vars['NODE_MODEL_OPTIONS'] & ModelOptions.RAWDISK and VSERVERS_SIZE != "-1": + utils.sysexec( "lvcreate -L%s -nvservers planetlab" % VSERVERS_SIZE, log ) + remaining_extents= get_remaining_extents_on_vg( vars, log ) + utils.sysexec( "lvcreate -l%s -nrawdisk planetlab" % remaining_extents, log ) + else: + # create vservers logical volume with all remaining space + # first, we need to get the number of remaining extents we can use + remaining_extents= get_remaining_extents_on_vg( vars, log ) + + utils.sysexec( "lvcreate -l%s -nvservers planetlab" % remaining_extents, log ) # activate volume group (should already be active) #utils.sysexec( TEMP_PATH + "vgchange -ay planetlab", log ) # make swap - utils.sysexec( "mkswap %s" % PARTITIONS["swap"], log ) + utils.sysexec( "mkswap -f %s" % PARTITIONS["swap"], log ) # check if badhd option has been set option = '' @@ -153,6 +167,10 @@ def Run( vars, log ): log.write("formatting %s partition (%s)%s.\n" % (fs,devname,txt)) utils.sysexec( "mkfs.ext2 -q %s -m %d -j %s" % (option,rbp,devname), log ) + # disable time/count based filesystems checks + for filesystem in ("root","vservers"): + utils.sysexec_noerr( "tune2fs -c -1 -i 0 %s" % PARTITIONS[filesystem], log) + # save the list of block devices in the log log.write( "Block devices used (in lvm): %s\n" % repr(used_devices)) @@ -162,7 +180,7 @@ def Run( vars, log ): return 1 - +import parted def single_partition_device( device, vars, log ): """ initialize a disk by removing the old partition tables, @@ -171,78 +189,55 @@ def single_partition_device( device, vars, log ): return 1 if sucessful, 0 otherwise """ - BOOT_CD_VERSION= vars["BOOT_CD_VERSION"] - if BOOT_CD_VERSION[0] == 2: - compatibility.setup_partdisks_2x_cd( vars, log ) - - import parted + # two forms, depending on which version of pyparted we have + # v1 does not have a 'version' method + # v2 and above does, but to make it worse, + # parted-3.4 on f14 has parted.version broken and raises SystemError + try: + parted.version() + return single_partition_device_2_x (device, vars, log) + except AttributeError: + # old parted does not have version at all + return single_partition_device_1_x (device, vars, log) + except SystemError: + # let's assume this is >=2 + return single_partition_device_2_x (device, vars, log) + except: + raise + +def single_partition_device_1_x ( device, vars, log): lvm_flag= parted.partition_flag_get_by_name('lvm') try: + log.write("Using pyparted 1.x\n") # wipe the old partition table utils.sysexec( "dd if=/dev/zero of=%s bs=512 count=1" % device, log ) # get the device dev= parted.PedDevice.get(device) - # 2.x cds have different libparted that 3.x cds, and they have - # different interfaces - if BOOT_CD_VERSION[0] == 3: - - # create a new partition table - disk= dev.disk_new_fresh(parted.disk_type_get("msdos")) - - # create one big partition on each block device - constraint= dev.constraint_any() - - new_part= disk.partition_new( - parted.PARTITION_PRIMARY, - parted.file_system_type_get("ext2"), - 0, 1 ) - - # make it an lvm partition - new_part.set_flag(lvm_flag,1) - - # actually add the partition to the disk - disk.add_partition(new_part, constraint) - - disk.maximize_partition(new_part,constraint) - - disk.commit() - del disk - else: - # create a new partition table - dev.disk_create(parted.disk_type_get("msdos")) - - # get the disk - disk= parted.PedDisk.open(dev) + # create a new partition table + disk= dev.disk_new_fresh(parted.disk_type_get("msdos")) - # create one big partition on each block device - part= disk.next_partition() - while part: - if part.type == parted.PARTITION_FREESPACE: - new_part= disk.partition_new( - parted.PARTITION_PRIMARY, - parted.file_system_type_get("ext2"), - part.geom.start, - part.geom.end ) + # create one big partition on each block device + constraint= dev.constraint_any() - constraint = disk.constraint_any() + new_part= disk.partition_new( + parted.PARTITION_PRIMARY, + parted.file_system_type_get("ext2"), + 0, 1 ) - # make it an lvm partition - new_part.set_flag(lvm_flag,1) + # make it an lvm partition + new_part.set_flag(lvm_flag,1) - # actually add the partition to the disk - disk.add_partition(new_part, constraint) + # actually add the partition to the disk + disk.add_partition(new_part, constraint) - break + disk.maximize_partition(new_part,constraint) - part= disk.next_partition(part) - - disk.write() - disk.close() - del disk + disk.commit() + del disk except BootManagerException, e: log.write( "BootManagerException while running: %s\n" % str(e) ) @@ -256,6 +251,50 @@ def single_partition_device( device, vars, log ): +def single_partition_device_2_x ( device, vars, log): + try: + log.write("Using pyparted 2.x\n") + + # Thierry june 2012 -- for disks larger than 2TB + # calling this with part_type='msdos' would fail at the maximizePartition stage + # create a new partition table + def partition_table (device, part_type, fs_type): + # wipe the old partition table + utils.sysexec( "dd if=/dev/zero of=%s bs=512 count=1" % device, log ) + # get the device + dev= parted.Device(device) + disk = parted.freshDisk(dev,part_type) + # create one big partition on each block device + constraint= parted.constraint.Constraint (device=dev) + geometry = parted.geometry.Geometry (device=dev, start=0, end=1) + fs = parted.filesystem.FileSystem (type=fs_type,geometry=geometry) + new_part= parted.partition.Partition (disk, type=parted.PARTITION_NORMAL, + fs=fs, geometry=geometry) + # make it an lvm partition + new_part.setFlag(parted.PARTITION_LVM) + # actually add the partition to the disk + disk.addPartition(new_part, constraint) + disk.maximizePartition(new_part,constraint) + disk.commit() + print >>log, 'Current disk for %s - partition type %s'%(device,part_type),disk + print >>log, 'Current dev for %s'%device,dev + del disk + + try: + partition_table (device, 'msdos', 'ext2') + except: + partition_table (device, 'gpt', 'ext2') + + except Exception, e: + log.write( "Exception inside single_partition_device_2_x : %s\n" % str(e) ) + import traceback + traceback.print_exc(file=log) + return 0 + + return 1 + + + def create_lvm_physical_volume( part_path, vars, log ): """ make the specificed partition a lvm physical volume. @@ -277,30 +316,65 @@ def create_lvm_physical_volume( part_path, vars, log ): return 1 +def create_raid_partition(partitions, vars, log): + """ + create raid array using specified partitions. + """ + raid_part = None + raid_enabled = False + node_tags = BootAPI.call_api_function( vars, "GetNodeTags", + ({'node_id': vars['NODE_ID']},)) + for node_tag in node_tags: + if node_tag['tagname'] == 'raid_enabled' and \ + node_tag['value'] == '1': + raid_enabled = True + break + if not raid_enabled: + return raid_part + + try: + log.write( "Software raid enabled.\n" ) + # wipe everything + utils.sysexec_noerr("mdadm --stop /dev/md0", log) + time.sleep(1) + for part_path in partitions: + utils.sysexec_noerr("mdadm --zero-superblock %s " % part_path, log) + + # assume each partiton is on a separate disk + num_parts = len(partitions) + if num_parts < 2: + log.write( "Not enough disks for raid. Found: %s\n" % partitions ) + raise BootManagerException("Not enough disks for raid. Found: %s\n" % partitions) + if num_parts == 2: + lvl = 1 + else: + lvl = 5 + + # make the array + part_list = " ".join(partitions) + raid_part = "/dev/md0" + cmd = "mdadm --create %(raid_part)s --chunk=128 --level=raid%(lvl)s " % locals() + \ + "--raid-devices=%(num_parts)s %(part_list)s" % locals() + utils.sysexec(cmd, log) + + except BootManagerException, e: + log.write("create_raid_partition failed.\n") + raid_part = None + + return raid_part + def get_partition_path_from_device( device, vars, log ): """ given a device, return the path of the first partition on the device """ - BOOT_CD_VERSION= vars["BOOT_CD_VERSION"] - # those who wrote the cciss driver just had to make it difficult - if BOOT_CD_VERSION[0] == 3: - cciss_test= "/dev/cciss" - if device[:len(cciss_test)] == cciss_test: - part_path= device + "p1" - else: - part_path= device + "1" + cciss_test= "/dev/cciss" + if device[:len(cciss_test)] == cciss_test: + part_path= device + "p1" else: - # if device ends in /disc, we need to make it end in - # /part1 to indicate the first partition (for devfs based 2.x cds) - dev_parts= string.split(device,"/") - if dev_parts[-1] == "disc": - dev_parts[-1]= "part1" - part_path= string.join(dev_parts,"/") - else: - part_path= device + "1" + part_path= device + "1" return part_path