Description of problem:
try cobbler

Version-Release number of selected component:
cobbler-2.2.3-2.fc17

Additional info:
cmdline:        /usr/bin/python /usr/sbin/tftpd.py -B 1380 -v -v
core_backtrace: dea6fae6477105bf133817aa37d92de7b265f0cc 0x33 <module> /usr/sbin/tftpd.py -
executable:     /usr/sbin/tftpd.py
kernel:         3.9.8-100.fc17.x86_64
last_occurrence: 1373112943
runlevel:       N 5
uid:            99
ureports_counter: 2

Truncated backtrace:
tftpd.py:51:<module>:ImportError: No module named tornado.ioloop

Traceback (most recent call last):
  File "/usr/sbin/tftpd.py", line 51, in <module>
    import tornado.ioloop as ioloop
ImportError: No module named tornado.ioloop

Local variables in innermost frame:
xmlrpclib: <module 'xmlrpclib' from '/usr/lib64/python2.7/xmlrpclib.pyc'>
errno: <module 'errno' (built-in)>
tftpboot_location: <function tftpboot_location at 0x1a4e8c0>
__package__: None
re: <module 're' from '/usr/lib64/python2.7/re.pyc'>
__doc__: "\nSYNOPSIS\n    tftpd.py [-h,--help] [-v,--verbose] [-d,--debug] [--version]\n             [--port=<port>(69)]\n\nDESCRIPTION\nA python, cobbler integrated TFTP server.  It is suitable to call via\nxinetd, or as a stand-alone daemon.  If called via xinetd, it will run,\nhandling requests, until it has been idle for at least 30 seconds, and\nwill then exit.\n\nThis server queries cobbler for information about hosts that make requests,\nand will instantiate template files from the materialized hosts' \n'fetchable_files' attribute.\n\nEXIT STATUS\n\nAUTHOR\n    Douglas Kilpatrick <kilpatds@oppositelock.org>\n\nLICENSE\n    This script is in the public domain, free from copyrights or restrictions\n\nVERSION\n    0.5\n\nTODO\n    Requirement: retransmit\n    Requirement: Ignore stale retrainsmits\n    Security:    only return files that are o+r\n    Security:    support hosts.allow/deny\n    Security:    Make absolute path support optional, and default off\n    Feature:     support blksize2 (blksize, limited to powers of 2)\n    Feature:     support utimeout (timeout, in ms)\n\n"
deque: <type 'collections.deque'>
stat: <module 'stat' from '/usr/lib64/python2.7/stat.pyc'>
__builtins__: <module '__builtin__' (built-in)>
__file__: '/usr/sbin/tftpd.py'
sys: <module 'sys' (built-in)>
pwd: <module 'pwd' (built-in)>
VERSION: 0.5
__name__: '__main__'
logging: <module 'logging' from '/usr/lib64/python2.7/logging/__init__.pyc'>
socket: <module 'socket' from '/usr/lib64/python2.7/socket.pyc'>
os: <module 'os' from '/usr/lib64/python2.7/os.pyc'>
traceback: <module 'traceback' from '/usr/lib64/python2.7/traceback.pyc'>
local_get_cobbler_api_url: <function local_get_cobbler_api_url at 0x1a50578>
time: <module 'time' from '/usr/lib64/python2.7/lib-dynload/timemodule.so'>
fnmatch: <function fnmatch at 0x16237d0>
optparse: <module 'optparse' from '/usr/lib64/python2.7/optparse.pyc'>