Description of problem:
ssm create -s 2T -n Guests -p Guests /dev/sdb

Version-Release number of selected component:
system-storage-manager-0.2-1.fc18

Additional info:
cmdline:        /usr/bin/python /bin/ssm create -s 2T -n Guests -p Guests /dev/sdb
executable:     /bin/ssm
kernel:         3.7.7-201.fc18.x86_64
uid:            0

Truncated backtrace:
misc.py:397:run:RuntimeError: ERROR running command: "lvm vgcreate Guests /dev/sdb"

Traceback (most recent call last):
  File "/bin/ssm", line 33, in <module>
    sys.exit(main.main())
  File "/usr/lib/python2.7/site-packages/ssmlib/main.py", line 1485, in main
    args.func(args)
  File "/usr/lib/python2.7/site-packages/ssmlib/main.py", line 940, in create
    self.add(args)
  File "/usr/lib/python2.7/site-packages/ssmlib/main.py", line 1006, in add
    args.pool.new(args.device)
  File "/usr/lib/python2.7/site-packages/ssmlib/main.py", line 358, in _new_func
    return func(self.name, *args)
  File "/usr/lib/python2.7/site-packages/ssmlib/backends/lvm.py", line 138, in new
    self.run_lvm(command)
  File "/usr/lib/python2.7/site-packages/ssmlib/backends/lvm.py", line 60, in run_lvm
    misc.run(command, stdout=True)
  File "/usr/lib/python2.7/site-packages/ssmlib/misc.py", line 397, in run
    raise RuntimeError(err_msg)
RuntimeError: ERROR running command: "lvm vgcreate Guests /dev/sdb"

Local variables in innermost frame:
return_stdout: True
cmd: ['lvm', 'vgcreate', 'Guests', '/dev/sdb']
stdout: None
show_cmd: False
stdin_data: None
stdin: None
err_msg: 'ERROR running command: "lvm vgcreate Guests /dev/sdb"'
can_fail: False
stderr: -2
error: None
output: None
proc: <subprocess.Popen object at 0x7fa047872e50>