It looks like the installer was still creating the filesystem, when the âunknown errorâ occurred - so maybe there isnât a filesystem to unlock ⌠(?)
I assume you didnât have a place to copy the log[1] â was it possible to expand the âShow logâ?
The title of the window (dasbus.error.DBusError: Waiting for 'LvCreateLinear' method of the '/com/redhat/lvmdbus1/Vg/0') suggest itâs something with creating the filesystem.