Merge lp://qastaging/~heber013/utah/fixing-provisioning-function into lp://qastaging/utah

Looks sane, +1 assuming it works for you

I think the fix is incomplete. casper/initrd and the target directory initrd have the same name and utah fails with ENOTDIR

cat: write error: Broken pipe
Unhandled error in UTAH:
Traceback (most recent call last):
  File "/usr/bin/run_utah_tests.py", line 132, in <module>
    exitstatus = timeout(config.jobtimeout, run_utah_tests)
  File "/usr/lib/python2.7/dist-packages/utah/timeout.py", line 65, in timeout
    return command(*args, **kw)
  File "/usr/bin/run_utah_tests.py", line 121, in run_utah_tests
    exitstatus, locallogs = run_tests(args, _get_machine(args))
  File "/usr/lib/python2.7/dist-packages/utah/run.py", line 344, in run_tests
    exitstatus, remote_path = _run(machine, args.runlist, extraopts)
  File "/usr/lib/python2.7/dist-packages/utah/run.py", line 256, in _run
    return _install_and_run(machine, runlist_url, extraopts)
  File "/usr/lib/python2.7/dist-packages/utah/run.py", line 174, in _install_and_run
    machine.installclient()
  File "/usr/lib/python2.7/dist-packages/utah/provisioning/provisioning.py", line 315, in installclient
    self.uploadfiles([deb], tmppath)
  File "/usr/lib/python2.7/dist-packages/utah/provisioning/ssh.py", line 202, in uploadfiles
    self.activecheck()
  File "/usr/lib/python2.7/dist-packages/utah/provisioning/ssh.py", line 364, in activecheck
    self.provisioncheck()
  File "/usr/lib/python2.7/dist-packages/utah/provisioning/provisioning.py", line 247, in provisioncheck
    config.installtimeout, self._provision, provision_data)
  File "/usr/lib/python2.7/dist-packages/utah/timeout.py", line 75, in timeout
    retval = command(*args, **kw)
  File "/usr/lib/python2.7/dist-packages/utah/provisioning/provisioning.py", line 364, in _provision
    self._create(provision_data)
  File "/usr/lib/python2.7/dist-packages/utah/provisioning/vm.py", line 522, in _create
    self._copy_qemu_scripts(tmpdir=tmpdir)
  File "/usr/lib/python2.7/dist-packages/utah/provisioning/provisioning.py", line 717, in _copy_qemu_scripts
    self.copy_qemu_scripts_to_path(initrd_work_dir)
  File "/usr/lib/python2.7/dist-packages/utah/provisioning/provisioning.py", line 1010, in copy_qemu_scripts_to_path
    shutil.copy2(src, dst)
  File "/usr/lib/python2.7/shutil.py", line 130, in copy2
    copyfile(src, dst)
  File "/usr/lib/python2.7/shutil.py", line 83, in copyfile
    with open(dst, 'wb') as fdst:
IOError: [Errno 20] Not a directory: '/var/lib/utah/vm/utah_vm_V0OnwPlGppPWxuFE/tmpcIvRKW/initrd/qemu-setup.py'

I tried fixing _copy_qemu_scripts and some more errors. Now I am getting an error in the function _preseedcasper:

2018-08-06 17:17:13,086 root WARNING: Command (sed -i 1i/scripts/casper-bottom/utah\n[ -e /conf/param.conf ] && . /conf/param.conf /var/lib/utah/vm/utah-21-cosmic-amd64/tmp7jWHqv/initrd.d/scripts/casper-bottom/ORDER) failed with return code: 2