Description of problem:
Tried to create a pv at the start of a disk.

PS.: Zase to spadlo. ;-)

Version-Release number of selected component:
blivet-gui-1.0.6-1.fc23.noarch

Additional info:
reporter:       libreport-2.6.4
blivet-gui.log: 
cmdline:        /usr/bin/python3  /usr/bin/blivet-gui
executable:     /usr/bin/blivet-gui
hashmarkername: blivet-gui
kernel:         4.4.8-300.fc23.x86_64
product:        Fedora
release:        Fedora release 23 (Twenty Three)
type:           Python
version:        23

Truncated backtrace:
Traceback (most recent call last):
  File "/usr/lib/python3.4/site-packages/blivetgui/blivetgui.py", line 454, in add_partition
    self._reraise_exception(result.exception, result.traceback)
  File "/usr/lib/python3.4/site-packages/blivetgui/blivetgui.py", line 245, in _reraise_exception
    raise type(exception)(str(exception) + "\n" + traceback)
blivet.errors.PartitioningError: po vytvoření rozšířeného oddílu již není dostatek místa
Traceback (most recent call last):
  File "/usr/lib/python3.4/site-packages/blivetgui/blivet_utils.py", line 1091, in add_device
    blivet.partitioning.doPartitioning(self.storage)
  File "/usr/lib/python3.4/site-packages/blivet/partitioning.py", line 557, in doPartitioning
    allocatePartitions(storage, disks, partitions, free)
  File "/usr/lib/python3.4/site-packages/blivet/partitioning.py", line 906, in allocatePartitions
    raise PartitioningError(_("not enough free space after "
blivet.errors.PartitioningError: po vytvoření rozšířeného oddílu již není dostatek místa