I marked this as a duplicate of bug #405022 because there are a lot of similar issues, and sometimes but not always crashes, caused by the fact that libparted doesn't support "disk devices" with a logical sector size > 512.
I marked this as a duplicate of bug #405022 because there are a lot of similar issues, and sometimes but not always crashes, caused by the fact that libparted doesn't support "disk devices" with a logical sector size > 512.