On IBM Power Systems, *kdump* fails if *fadump* was used previously and both use a network target

Issue

• The kdump kernel crash dumping mechanism will fail to save dumps to a network location if the same system was previously configured to instead use firmware-assisted dumping (fadump) and also save dumps remotely. This is because when the mechanism is switched back to kdump, the kdump- prefix is added to the configured network interface, but configuring fadump already added the same prefix before. The resulting interface name becomes kdump-kdump-eth0, and the final 0 is then truncated. This results in an invalid interface name kdump-kdump-eth, and kdump then fails to access the interface and save crash dumps to a remote target.