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#
# partitioning.py: partitioning and other disk management
#
# Matt Wilson <msw@redhat.com>
# Jeremy Katz <katzj@redhat.com>
# Mike Fulbright <msf@redhat.com>
# Harald Hoyer <harald@redhat.de>
#
# Copyright 2001-2002 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.
#
if __name__ == "__main__":
import sys
sys.path.append ("isys")
import isys
import parted
import raid
import fsset
import os
import sys
import string
import iutil
import partedUtils
import raid
from rhpl.translate import _
from log import log
from constants import *
from flags import flags
from partErrors import *
import partRequests
def get_lvm_volume_group_size(request, requests, diskset):
# got to add up all of physical volumes to get total size
if request.physicalVolumes is None:
return 0
totalspace = 0
for physvolid in request.physicalVolumes:
pvreq = requests.getRequestByID(physvolid)
part = partedUtils.get_partition_by_name(diskset.disks,
pvreq.device)
totalspace = totalspace + part.geom.length * part.geom.disk.dev.sector_size
return totalspace
def get_raid_device_size(raidrequest, partitions, diskset):
if not raidrequest.raidmembers or not raidrequest.raidlevel:
return 0
raidlevel = raidrequest.raidlevel
nummembers = len(raidrequest.raidmembers) - raidrequest.raidspares
smallest = None
sum = 0
for member in raidrequest.raidmembers:
req = partitions.getRequestByID(member)
device = req.device
part = partedUtils.get_partition_by_name(diskset.disks, device)
partsize = part.geom.length * part.geom.disk.dev.sector_size
if raid.isRaid0(raidlevel):
sum = sum + partsize
else:
if not smallest:
smallest = partsize
elif partsize < smallest:
smallest = partsize
if raid.isRaid0(raidlevel):
return sum
elif raid.isRaid1(raidlevel):
return smallest
elif raid.isRaid5(raidlevel):
return (nummembers-1) * smallest
else:
raise ValueError, "Invalid raidlevel in get_raid_device_size()"
# return the actual size being used by the request in megabytes
def requestSize(req, diskset):
if req.type == REQUEST_VG:
if req.size != None:
thissize = req.size
else:
thissize = 0
if req.type == REQUEST_RAID:
# XXX duplicate the hack below.
if req.size != None:
thissize = req.size
else:
thissize = 0
else:
part = partedUtils.get_partition_by_name(diskset.disks, req.device)
if not part:
# XXX hack for kickstart which ends up calling this
# before allocating the partitions
if req.size:
thissize = req.size
else:
thissize = 0
else:
thissize = partedUtils.getPartSizeMB(part)
return thissize
def partitionObjectsInitialize(diskset, partitions, dir, intf):
if iutil.getArch() == "s390":
partitions.useAutopartitioning = 0
partitions.useFdisk = 1
if dir == DISPATCH_BACK:
diskset.closeDevices()
return
# read in drive info
diskset.refreshDevices(intf, partitions.reinitializeDisks,
partitions.zeroMbr)
diskset.checkNoDisks(intf)
partitions.setFromDisk(diskset)
def partitionMethodSetup(partitions, dispatch):
# turn on/off step based on 3 paths:
# - use fdisk, then set mount points
# - use autopartitioning, then set mount points
# - use interactive partitioning tool, continue
dispatch.skipStep("autopartition",
skip = not partitions.useAutopartitioning)
dispatch.skipStep("autopartitionexecute",
skip = not partitions.useAutopartitioning)
if iutil.getArch() == "s390":
dispatch.skipStep("fdasd", skip = not partitions.useFdisk)
else:
dispatch.skipStep("fdisk", skip = not partitions.useFdisk)
partitions.setProtected(dispatch)
def partitioningComplete(bl, fsset, diskSet, partitions, intf, instPath, dir):
if dir == DISPATCH_BACK and fsset.isActive():
rc = intf.messageWindow(_("Installation cannot continue."),
_("The partitioning options you have chosen "
"have already been activated. You can "
"no longer return to the disk editing "
"screen. Would you like to continue "
"with the installation process?"),
type = "yesno")
if rc == 0:
sys.exit(0)
return DISPATCH_FORWARD
partitions.sortRequests()
fsset.reset()
for request in partitions.requests:
# XXX improve sanity checking
if (not request.fstype or (request.fstype.isMountable()
and not request.mountpoint)):
continue
entry = request.toEntry(partitions)
if entry:
fsset.add (entry)
else:
raise RuntimeError, ("Managed to not get an entry back from "
"request.toEntry")
if iutil.memInstalled() > isys.EARLY_SWAP_RAM:
return
# XXX this attribute is probably going away
if not partitions.isKickstart:
rc = intf.messageWindow(_("Low Memory"),
_("As you don't have much memory in this "
"machine, we need to turn on swap space "
"immediately. To do this we'll have to "
"write your new partition table to the disk "
"immediately. Is that okay?"), "okcancel")
else:
rc = 0
if rc:
fsset.setActive(diskSet)
diskSet.savePartitions ()
fsset.formatSwap(instPath)
fsset.turnOnSwap(instPath)
return
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