thanks for the report!

Error seems to be:

ERROR:anaconda.modules.common.task.task:Thread AnaTaskThread-InstallBootloaderTask-1 has failed: Traceback (most recent call last):
  File "/usr/lib64/python3.6/site-packages/pyanaconda/threading.py", line 280, in run
    threading.Thread.run(self)
  File "/usr/lib64/python3.6/threading.py", line 885, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib64/python3.6/site-packages/pyanaconda/modules/common/task/task.py", line 97, in _task_run_callback
    self._set_result(self.run())
  File "/usr/lib64/python3.6/site-packages/pyanaconda/modules/storage/bootloader/installation.py", line 103, in run
    install_boot_loader(storage=self._storage)
  File "/usr/lib64/python3.6/site-packages/pyanaconda/modules/storage/bootloader/utils.py", line 166, in install_boot_loader
    storage.bootloader.write()
  File "/usr/lib64/python3.6/site-packages/pyanaconda/modules/storage/bootloader/efi.py", line 113, in write
    self.install()
  File "/usr/lib64/python3.6/site-packages/pyanaconda/modules/storage/bootloader/efi.py", line 122, in install
    self.remove_efi_boot_target()
  File "/usr/lib64/python3.6/site-packages/pyanaconda/modules/storage/bootloader/efi.py", line 86, in remove_efi_boot_target
    buf = self.efibootmgr(capture=True)
  File "/usr/lib64/python3.6/site-packages/pyanaconda/modules/storage/bootloader/efi.py", line 57, in efibootmgr
    return exec_func("efibootmgr", list(args), **kwargs)
  File "/usr/lib64/python3.6/site-packages/pyanaconda/core/util.py", line 413, in execWithCapture
    filter_stderr=filter_stderr)[1]
  File "/usr/lib64/python3.6/site-packages/pyanaconda/core/util.py", line 321, in _run_program
    env_prune=env_prune)
  File "/usr/lib64/python3.6/site-packages/pyanaconda/core/util.py", line 202, in startProgram
    preexec_fn=preexec, cwd=root, env=env, **kwargs)
  File "/usr/lib64/python3.6/subprocess.py", line 729, in __init__
    restore_signals, start_new_session)
  File "/usr/lib64/python3.6/subprocess.py", line 1364, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'efibootmgr': 'efibootmgr'

And indeed between 4.4.9 and 4.4.9.1 build the following packages disappeared from the manifest:

efi-filesystem-3-3.el8.noarch
efibootmgr-16-1.el8.x86_64
efivar-libs-37-4.el8.x86_64

grub2-efi-x64-2.02-99.el8_4.1.x86_64

I also see there's a regression in ovirt-host package:

in 4.4.9 the ISO contained ovirt-host-4.4.9-2.el8.x86_64 while in 4.4.9.1 it contains ovirt-host-4.4.8-1.el8.x86_64

I'm digging into the root cause of this issue. I fear some packages got lost with the migration of the main server out of the Phoenix datacenter.

I guess we missed this because we tested the ISO on a non-efi system.

+Lev Veyde +Sanja Bonic +Michal Skrivanek for awareness.