I have created sles 12 preloaded ISO image using autoyast, and the environment is cisco ucs blade server with SAN boot lun, the preloaded ISO image is working if i use this on same hardware, but if i use this on other blade server getting below error.

"No hard disks were found for the installation, please check your hardware"

Below are the entry in autoyast.xml file.

<append> resume=/dev/disk/by-uuid/xxxxxxxx splash=silent quiet showopts</append>