Technical data

5-8 9050 Diagnostics
Normal Operation Sequence (continued)
Operation
Self-Test
(OS).
Normal
Indication
"Loader
Rev._" on
output device.
No System
Loader Error
Messages on
output device (or
I/O card cage
LEOs lit).
"Testing
Memory" on
output device.
"Looking for
system" on out-
put device.
"OS 10#_"
on output
device.
"Load Done"
on output
device.
Load LED off.
No Operating
System Error
messages.
Copyright mes-
sages displayed.
Self- Test LED
off.
Run LED on.
What Normal Indicates
Boot loader is running.
I/O cards passed self-tests.
Internal HP-IB passed self-
tests.
SCM passed self-test.
NVM is good.
1/0 bus is good.
RTC is operating.
Loader memory test is being
performed.
Boot Loader completed
memory test and has confi-
gured memory.
Boot loader is looking for
operating system.
Boot Loader found an oper-
ating system.
Operating system is loaded in
RAM and loader transferred
control to operating system.
Stack, 110 cards. and
peripherals passed OS Self-
Tests.
OS checksum was checked.
lIO devices were assigned
addresses.
liO outputs were initialized.
Default structure established.
Operating System is ready for
run operation.
Probable Failure
No output device.
Output device failed its self-test.
Output device not powered up.
110 cards.
SCM board.
Motherboard.
Output device.
"Not enough usable memory ... " in-
dicates "no" usable memory (except
that used for loader).
Peripheral. with OS, not ready.
No operating system.
Refer to System Loader Messages.
Not enough good RAM.
Mass storage device failure.
Error in loading OS.
Boot loader ROM and OS revision
level are incompatible or console in-
terface not on select code 0 (OS
stops after transfer of control from
loader).
Refer to Operating System Error
Messages.
Failure to find root device. "System
halted" error message.