Comment 17 for bug 1878041

The installer is multipath aware; so in the case that there are not any multipath devices in the system, then the output from those commands will not include any maps or paths to multipath devices.

However, the error you posted suggested that *something* was returned from those commands and we failed to parse that; thus we're keenly interested in running those commands exactly to capture the output.

I believe you can use F2 to enter debug shell on the installer, from there you can run those commands and hopefully capture the output in some way.