Vax 4000-200 - The Saga continues

arcarlini at iee.org arcarlini at iee.org
Fri Nov 17 02:24:01 CST 2006


Rod Smallwood wrote:

> SET/STARTUP OPA0:
> SET WINDOW_SYSTEM 0
> SET WRITESYSPARAMS 0
> CONTINUE

OK so this bit says "start fromm  OPA0: (the console), don't do any of
this next time".

> $ SPAWN
> $ @SYS$SYSTEM:STARTUP

After this bit you have enough of OpenVMS running to fiddle with the
system manager's password.

At this stage you would do:

$ SET DEFAULT SYS$SYSTEM:
$ MC AUTHORIZE
UAF> MOD SYSTEM/PASS=somethingmemorable/PWDLIF=0
UAF> EXIT

(It's been years since I've had to break in so I may
have mis-typed or missed a step ... I'm sure someone will
chip in if I have)

So now reboot and when the system comes up normally you just
login as SYSTEM with your memorable password.


> This is mostly correct.... But what they don't say is the system gets
> left in a minimum condition.

Did you log out and did it reboot?

> In my case only the drive it booted from ie no 2/3rd drives, no tape
> and no ethernet devices.
> Under the low level prompt (>>>) all devices are shown as present.
> i.e. DIA0 (RF71), DIA1 (RF72), DIA2 (RF72) MUA0 (Tape) and EZA0
> (ethernet) 

I'm guessing that
 $ MC SYSGEN A A /LOG
would have sorted you out but ...

> 
> OK so lets try reversing the commands at the SYSBOOT prompt
> 
> SYSBOOT>  SET/STARTUP SYS$SYSTARTUP_VMS.COM;2

Should this not be SYS$SYSTEM:STARTUP.COM? It absolutely should not
have a version number in there.

> SYSBOOT>  SET WINDOW_SYSTEM 1
> 
> SYSBOOT>  SET WRITESYSPARAMS 1
> 
> SYSBOOT>  CONTINUE
> 
> startup begins,
> 
> Then the following errors:
> 
>     invalid logical name
>     previous value of SYSUAF has been superseded
>     error opening SYS$SYSROOT:[SYSMGR]BT$DEFINE_SYSTEMS.COM; as input
>     file not found
>     ON MIN OR UPGRADE START UP CLUE IS NOT RUN

You are using the wrong startup procedure and some pre-requisite has not
run.

> Then a load of OPCOM messages

Definitely set the startup procedure properly.

> If anybody does know where the answer is a link would be nice.

After your first reboot the startup would have been restored
to the correct value. WRITESYSPARAMS of 0 means "don't write anything
I've changed back to a file on exit so none of the changes will be
present on next boot". If all you've changed is as described above,
then reset the startup procedure (WINDOW_SYSTEM is fine as is)
and you'll be OK.

Antonio






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