6802081b_anuals___System_Administration__aptosid
[Runlevel] init S [Debian] This is where early boot time services are executed on a 'once only basis'. You cannot switch to it after it has been run. [aptosid] 
This is where early boot time services are executed on a 'once only basis'. You cannot switch to it after it has been run.
aptosid Manuals - System Administration
aptosid