Example of why this might be desired: I connect a block device, which shows up as /dev/sdb, and mount it. Later that device gets removed without being unmounted. The block device is reconnected, but this time given the name /dev/sdc. I unmount /dev/sdb but then want to switch /dev/sdc to be /dev/sdb.
How can I do this from the command line on OpenSUSE 13.1, without using persistent names?
The purpose of the question is for fixing a problematic state, such as the example given, not as a workaround for deliberately doing something incorrectly (such as not unmounting). This is also why persistent names would not be a solution.