20 Sep
2001
20 Sep
'01
9:03 a.m.
On Thu, 20 Sep 2001, salo wrote:
after pressing 'on/off' button, during startup
hold 'reset' button on
the back side, it will fall into firmware.
Generally you can press this 'reset' button at any time; it behaves more
like an 'interrupt'. In practise it's best to at least let the system
progress past self-test number 3 before pressing it, or not going near the
button at any time the OS is running.
then you should be able to boot into single user mode
from harddisk
typing:
b ncsc(sd(0),0) -s
the format here is:
ctrlr(dev(instance,target,lun)) file options
^ ^ ^ ^ ^ ^ ^
| | | | | | |
| | | | | | a runlevel may be specified
| | | | | | such as '-s' or '-3'.
| | | | | | initdefault for a newly-installed
| | | | | | DG-UX is runlevel 's' (single-user)
| | | | | |
| | | | | traditionally, 'root:/dgux'
| | | | | an alternate file may be specified
| | | | |
| | | | default '0'
| | | |
| | | SCSI target (ID) of desired boot device
| | |
| | controller instance number. traditionally '0'
| |
| 'sd' for SCSI disk or CD-ROM
| 'st' for SCSI tape
| other values for SMD or ESDI device
|
controller type
'insc' for workstation onboard SCSI
'ncsc' for VME SCSI
other values for other controllers
lun, file, and options may be omitted for default values.
btw. i have another problem. i have Sony GDM-1601/8
monitor (shipped by Data
General with own logo) connected to my AV 530 with graphics card by 3 BNC RGB
cable made from standard 50ohm coaxial cables (i know there should be 75ohm
ones, but i just wanted to try it).
Probably not a good idea, the 52-ohm coaxial centre conductor has a larger
diametre than that of 75-ohm coax. It's possible to damage the jacks by
using the wrong able.
It sounds like you have a different problem, though. You need to re-set
the default vertical refresh frequency. There are two possible values---60
Hz or 72 Hz. I have some notes at home on how I was able to accomplish
this. I'll send a followup later this evening.
are shifted to each other and it is shaking a bit. i
hoped that sync on green
was enogh but now i am not sure. graphics card i have is some data general 8
The monitor should display nothing if it does not find a sync signal
present. It seems more likely you just need to set the refresh rate.
ok
r.