Description of problem:
i just click on create user while installing
uefi and gpt with sercure boot but fedora 25 works fine

Version-Release number of selected component:
anaconda-core-26.21.7-1.fc26.x86_64

The following was filed automatically by anaconda:
anaconda 26.21.7-1 exception report
Traceback (most recent call first):
  File "/usr/lib/python3.6/site-packages/blivet/tasks/fsmount.py", line 125, in do_task
    raise FSError("mount failed: %s" % rc)
  File "/usr/lib/python3.6/site-packages/blivet/formats/fs.py", line 507, in _setup
    self._mount.do_task(chrooted_mountpoint, options=options)
  File "/usr/lib/python3.6/site-packages/blivet/threads.py", line 45, in run_with_lock
    return m(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/blivet/formats/__init__.py", line 602, in setup
    self._setup(**kwargs)
  File "/usr/lib/python3.6/site-packages/blivet/threads.py", line 45, in run_with_lock
    return m(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/blivet/osinstall.py", line 641, in mount_filesystems
    chroot=root_path)
  File "/usr/lib/python3.6/site-packages/blivet/blivet.py", line 1467, in mount_filesystems
    read_only=read_only, skip_root=skip_root)
  File "/usr/lib/python3.6/site-packages/blivet/threads.py", line 45, in run_with_lock
    return m(*args, **kwargs)
  File "/usr/lib/python3.6/site-packages/blivet/osinstall.py", line 1121, in turn_on_filesystems
    storage.mount_filesystems()
  File "/usr/lib64/python3.6/site-packages/pyanaconda/install_tasks.py", line 437, in run_task
    self._task(*self._task_args, **self._task_kwargs)
  File "/usr/lib64/python3.6/site-packages/pyanaconda/install_tasks.py", line 471, in start
    self.run_task()
  File "/usr/lib64/python3.6/site-packages/pyanaconda/install_tasks.py", line 303, in start
    item.start()
  File "/usr/lib64/python3.6/site-packages/pyanaconda/install_tasks.py", line 303, in start
    item.start()
  File "/usr/lib64/python3.6/site-packages/pyanaconda/install.py", line 356, in doInstall
    installation_queue.start()
  File "/usr/lib64/python3.6/threading.py", line 864, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib64/python3.6/site-packages/pyanaconda/threads.py", line 251, in run
    threading.Thread.run(self, *args, **kwargs)
blivet.errors.FSError: mount failed: 32

Additional info:
addons:         com_redhat_kdump
cmdline:        /usr/libexec/system-python  /sbin/anaconda --liveinst --method=livecd:///dev/mapper/live-base
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         4.11.0-2.fc26.x86_64
other involved packages: system-python-libs-3.6.1-6.fc26.x86_64, python3-blivet-2.1.7-10.fc26.noarch
product:        Fedora
release:        Fedora release 26 (Twenty Six)
type:           anaconda
version:        26