Emulating devices across selected communication pathways by way of a terminal session. At least some of the illustrative embodiments are methods including establishing a terminal session between a first computer system and a second computer system (the second computer system distinct from the first computer system, and the second computer system having a management processor with a plurality of communication pathways to a main processor of the second computer system), configuring the management processor to send data regarding emulation of a first mass storage device across a first selected pathway of the plurality of communication pathways to the main processor (the configuring by way of the terminal session), and emulating (by the management processor) the first mass storage device across the first selected pathway.