It is loaded and executed after self-test and initialization have completed successfully. Typically, when control is transferred to isl , an autoboot sequence takes place. An autoboot sequence allows a complete bootstrap operation to occur with no intervention from an operator. During an autoboot sequence, isl displays its revision and the name of any utility it executes. However, if autoboot is disabled, after isl displays its revision, it then prompts for input from the console device.
Acceptable input is any isl command name or the name of any utility available on the system.
If a non-fatal error occurs or the executed utility returns, isl again prompts for input. There are several commands available in isl . The following is a list with a short description. Parameters may be entered on the command line following the command name. They must be separated by spaces.