Comment 16 for bug 2059907

Before starting Calamares I unmounted it (of course), and there was no swap partition (only zram).

There was a live Lubuntu system on the target drive, and obviously this was recognized by Calamares.

The running live system was booted from another drive, but Calamares either 'assumed' that Lubuntu was booted from the drive that I intended to use as target for the installation, or generally, is set to avoid installing to a drive with a live system to avoid mistakes.