Configuring a local dump on a diskless client

[Hazel Araza]

I'm using two 10.20 systems that I've configured as a diskless server and client.
When I try to install a patch using the command "swcluster -i", the diskless client
panics during boot time with a trap type 15, and dump is disabled so I have no core file to analyze. I've tried adding the following line to the client's /stand/system:
dump
where is the HW path I got
from doing an "ioscan -funC disk" on the client, but dump is still disabled during boot time because "dump is not supported on LVM physical device ".

Does anyone know how I can configure a local dump for a diskless client, or make it so the
physical device I provide can support dump?