27 Dec
2007
27 Dec
'07
9:32 p.m.
Edward Tomasz Napierala said:
I just got a Sun 3/60, 8MB RAM, no disk. I have
several questions:
1. Were these used with an external disk? There is some room inside the
machine, but there are also several strange looking capacitors there.
You can use a SCSI disk there, but then, depending on the model and
capacity, you need to set some parameters in /etc (IIRC some format.dat
file) to make it known to SunOS. Typically, those machines where used as
diskless clients from a bootp server with sufficient storage. The client
boots from the network and receives a tftpboot image which then pulls in
the SunOS kernel and uses NFS to mount some /export/root, /export/swap and
/usr file systems. /export/root and /export/swap are per-system instances
of the root file system and swap file for the client, /usr is usually
readonly for all clients.
Unless you have a boot media (QIC24 tape or floppies) and can hook an
external drive to the machine, you better set up a server for diskless
clients. This can also be a Sparc machine.
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:
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?
The above is correct behaviour. With the diag switch set to NORM, the
machine expects a keyboard/mouse and monitor; it will then usually wait
for a boot command at the ">" prompt. Typing "b le()" attempts to
boot
from the server; "b st(0,,0)" would boot a
QIC tape to be connected, "b
(0,3,0)/vmunix" should boot a disk connected
to SCSI with normal settings
IIRC. You should also see a ">" prompt after self test at the serial
console.
Regards
Holger