#!/usr/bin/python
#
-# $Id$
-# $URL$
-#
# Copyright (c) 2003 Intel Corporation
# All rights reserved.
#
import os, sys
import string
import popen2
-
+import time
from Exceptions import *
import utils
import BootServerRequest
-
+import BootAPI
import ModelOptions
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
#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 = ''
# filesystems partitions names and their corresponding
# reserved-blocks-percentages
filesystems = {"root":5,"vservers":0}
-
- # make the file systems
- for fs in filesystems.keys():
- # get the reserved blocks percentage
- rbp = filesystems[fs]
- devname = PARTITIONS[fs]
- 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 )
+
+ # ROOT filesystem with ext2
+ fs = 'root'
+ rbp = filesystems[fs]
+ devname = PARTITIONS[fs]
+ 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 )
+
+ # VSERVER filesystem with btrfs to support snapshoting and stuff
+ fs = 'vservers'
+ rbp = filesystems[fs]
+ devname = PARTITIONS[fs]
+ log.write("formatting %s partition (%s)%s.\n" % (fs,devname,txt))
+ utils.sysexec( "mkfs.btrfs %s" % (devname), log )
# disable time/count based filesystems checks
- for filesystem in ("root","vservers"):
+ for filesystem in ["root"]:
utils.sysexec_noerr( "tune2fs -c -1 -i 0 %s" % PARTITIONS[filesystem], log)
# save the list of block devices in the log
"""
# 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:
- version=parted.version()
+ parted.version()
return single_partition_device_2_x (device, vars, log)
- except:
+ 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:
- print >>log, "Using pyparted 1.x"
+ 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 )
def single_partition_device_2_x ( device, vars, log):
try:
- print >>log, "Using pyparted 2.x"
+ log.write("Using pyparted 2.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.Device(device)
# create a new partition table
- disk= parted.freshDisk(dev,'msdos')
+ try:
+ disk= parted.freshDisk(dev,'msdos')
+ # use gpt as a fallback for disks larger than 2TB
+ except:
+ disk= parted.freshDisk(dev,'gpt')
# create one big partition on each block device
constraint= parted.constraint.Constraint (device=dev)
geometry = parted.geometry.Geometry (device=dev, start=0, end=1)
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 ):
"""
git://git.onelab.eu / bootmanager.git / blobdiff