Installer WebUI Critical Error: org.fedoraproject.Anaconda.Error: 'NoneType' object has no attribute 'path' Please attach the log file /tmp/journal.log to the issue. ---[ System & Environment Information ]--- OS: Fedora Linux 43 (Xfce) Anaconda version: 43.44 Anaconda UI version: 53.14.g7ea927aa This happens with a btrfs RAID0 volume. This happens whether it's a fresh install or an in-place Fedora 42 to 43 install. Obviously there was no such problem during Fedora 41 to 42 in-place upgrade. It appears though btrfs RAID0 is unsupported by Fedora 43 installer.
After such a failed Fedora 42 to 43 in-place upgrade, rebooting the system in the (albeit failed to upgrade) system, it results in a unbootable system with a kernel panic.
*** This bug has been marked as a duplicate of bug 2394554 ***