NexentaにSSHログインしてエキスパートモードを有効にする手順

usr@example:/$ ssh root@nexenta Password: 
nmc@nexenta:/$ option expert_mode=1 
nmc@nexenta:/$ !bash
You are about to enter the Unix ("raw") shell and execute low-level Unix command(s). Warning: using low-level Unix commands is not recommended! Execute? Yes