27 Dec
2007
27 Dec
'07
6:45 p.m.
Edward Tomasz Napierala wrote:
I just got a Sun 3/60, 8MB RAM, no disk. I have
several questions:
Do you have the monitor and/or keyboard for it, too?
1. Were these used with an external disk? There is
some room inside the
machine, but there are also several strange looking capacitors there.
Yes, they were used with either an external SCSI disk enclosure
known as a "shoebox" or with a network disk (NFS). The latter
setup was known as a diskless workstation.
2. With diag switch set to "norm", there is
nothing (no output) on the
serial console; the machine just blinks one of the LEDs. With diag
switch set to "diag", the following appears:
OK; if you have a keyboard plugged in, then the boot messages
will go to the built-in framebuffer (i.e. the video monitor).
Without a keyboard, the machine boots up "headless" and sends
messages to the serial port.
Boot PROM Selftest
PROM Checksum Test
Context Reg Test
Segment Map Wr/Rd Test
Segment Map Address Test
Page Map Test
Memory Path Data Test
NXM Bus Error Test
Interrupt Test
TOD Clock Interrupt Test
MMU Access Bit Test
MMU Access/Modify Bit Test
MMU Invalid Page Test
MMU Protected Page Test
Parity Test
Memory Size = 0x00000008 Megabytes
Selftest passed.
Type a character within 10 seconds to enter Menu Tests...
(e for echo
mode)
Is that a sign of EEPROM problem? Failed battery?
It looks OK to me. What happens if you wait 10 seconds? Do you
get a monitor prompt? To boot from the external SCSI disk (which
I presume you don't yet have) there's a "boot sd(0,0,0)" command
(or similar). I think there may be help built-in at the monitor
command level, but it all depends on how old the monitor ROMs
are. Old versions had less helpful help than newer versions...
--
John Honniball
coredump at gifford.co.uk