Version-Release number of selected component:
anaconda-core-28.22.11-1.fc28.x86_64

The following was filed automatically by anaconda:
anaconda 28.22.11 exception report
Traceback (most recent call first):
  File "/usr/lib64/python3.6/site-packages/pyanaconda/payload/livepayload.py", line 76, in setup
    raise PayloadInstallError("Unable to find osimg for %s" % self.data.method.partition)
  File "/usr/lib64/python3.6/site-packages/pyanaconda/payload/__init__.py", line 1638, in _runThread
    payload.setup(storage, instClass)
  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/threading.py", line 291, in run
    threading.Thread.run(self)
pyanaconda.payload.PayloadInstallError: Unable to find osimg for /dev/mapper/live-base

Additional info:
addons:         com_redhat_kdump
cmdline:        /usr/bin/python3  /sbin/anaconda --liveinst --method=livecd:///dev/mapper/live-base
cmdline_file:   BOOT_IMAGE=/images/pxeboot/vmlinuz root=live:CDLABEL=Fedora-Workstation-28 rd.live.image nouveau.modeset=0 nvme_core.default_pm_max_latency_us=0 quiet
executable:     /sbin/anaconda
hashmarkername: anaconda
kernel:         4.17.14-202.fc28.x86_64
other involved packages: python3-libs-3.6.6-1.fc28.x86_64
product:        Fedora
release:        Fedora release 28 (Twenty Eight)
type:           anaconda
version:        28

Potential duplicate: bug 1525910