2. Turn off the system.3. Wait 30 seconds, and turn on the system.4. After the keyboard indicator appears during startup, and before the tone sounds,press the F6 key on a directly attached keyboard (or the number 6 key on an ASCIIterminal).5. Enter any requested passwords.After any requested passwords have been entered, the system attempts to boot fromthe first device of each type found on the list. If no bootable image is found on the firstdevice of each type on the list, the system does not search through the other devices ofthat type for a bootable image; instead, it polls the first device of the next type.If all types of devices in the boot list have been polled without finding a bootable image,the system restarts, this gives the user the opportunity to start the System ManagementServices (by pressing the F1 key on a directly attached keyboard or the number 1 onan ASCII terminal) before the system attempts to boot again.Default Boot List and Service Mode Boot ListThe default boot list is:1. Diskette drive2. CD-ROM drive3. Tape drive4. Disk drive5. Network adapterv Token-ringv EthernetPressing the F5 key on a directly attached keyboard (or the number 5 key on an ASCIIterminal) causes the system to load Standalone Diagnostics provided that adiagnostic CD is present in the CD-ROM drive.Pressing the F6 key on a directly attached keyboard (or number 6 key on an ASCIIterminal) loads Online Diagnostics using the service mode boot list. No diagnostic CDshould be in the CD-ROM drive because Online Diagnostics are typically run from ahard disk. Like the default boot list, the service mode boot list can contain five entries.The F6 and 6 keys work like the F5 and 5 keys, with the following exceptions:v The system searches for a boot record according to the service mode boot list.v If the service mode boot list is discovered by a cyclical redundancy check to becorrupted, the system rebuilds the service mode boot list according to the defaultboot list. (The default boot list contains five entries, and for each matching devicetype found in the system unit, the system makes an entry in the service mode bootlist.)v If no service mode boot list is present, the system uses the default boot list.182 Service Guide
