1. A method of live partition mobility in a computing environment, the computing environment comprising a source system and a target system, the method comprising: pausing a logical partition on the source system, wherein the logical partition is mapped to an I/O (‘input/output’) adapter of the source system; copying, to the target system, configuration information describing the mapping of the logical partition to the I/O adapter; copying, to the target system, the logical partition of the source system; placing an I/O adapter of the target system into an error state; mapping, in dependence upon the configuration information, the logical partition of the target system to the I/O adapter of the target system; placing the I/O adapter of the target system into an error recovery state; and resuming the logical partition on the target system.