Figure 2-1 Default Boot Mode - Sun Microsystems SPARC classic Service Manual

Power-on switch
Keyboard
attached
True
(default)
False (default)
Diag-
switch?
True
Boot from device
alias "net"
Sun Diagnostic
Executive
= Not applicable to the
SPARCclassic X terminal
Default Boot Mode
FIGURE 2-1
Yes
Stop-d
keys?
?
Yes
No
Display errors on
keyboard LEDs
and serial port A
System banner
appears on screen
High-level tests
Press Stop-a to get
False
Auto-
boot?
Boot from device
alias "disk"
No False (default)
Diag-
switch?
True
Low-level POST
No
POST
passed
Yes
Probe SBus devices and
interpret their drivers
to the ok prompt
Boot command at
ok prompt
Boot user-specified
device and program
Normal
operating system
Sundiag System
Exerciser
Chapter 2 Troubleshooting Overview
( ok prompt )
On-board diagnostics
2-3