Installing OpenSolaris on HP SmartArray
Solaris and OpenSolaris does not include SmartArray drivers, these need to be download from HP Website
After that, extract the .pkg directory onto a USB stick
Then start the LiveCD, open terminal and type :
pfexec touch /ADD_DRV_IGNORE_ROOT_BASEDIR
after that install the driver :
pfexec pkgadd -d path/to/pkgdir
Now you can start installation, it should see the array.