Why does the Dashboard Installer require a restart on Mac OS X? A launchctl unload and app quit prior to running and launchctl load afterwards works just fine.
hi am not sure on a mac but maybe its suggested to prevent files from being locked, such as how sometimes a windows patch / installation needs a reboot etc?
either way if you got it to do what you wanted without a restart, and if it’s still working fine for you then well done 
Dashboard installs the most current version of the iSCSI enabler.
Since that is a kext (kernel extension), it requires a restart.