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12-09-2011 08:13 AM
12-09-2011 08:13 AM
Bypass Xwindows after VMS boots?
I have an Alpha Server running OPenVMS 7.3-2. When it boots, I get the regular operator console, but then at the end of the boot it asks for the system account and password and it goes into Xwindows and from there I can launch a terminal emulator and issue vms commands. Is there a way to have the machine boot but NOT go into Xwindows?
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12-09-2011 08:57 AM
12-09-2011 08:57 AM
Re: Bypass Xwindows after VMS boots?
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12-09-2011 01:00 PM
12-09-2011 01:00 PM
Re: Bypass Xwindows after VMS boots?
Yes, there are ways. You need to know what your system/user base needs first, though. Do you want the system to be a "server only" without any support for X-Windows at all?
You could either 1) take out the graphics card, disconnect the mouse and keyboard or 2) you could set the system parameter WINDOW_SYSTEM to 0. It all depends on what you need that system to do. OpenVMS itself will, most likely, work just fine either way.
bob
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12-09-2011 02:08 PM
12-09-2011 02:08 PM
Re: Bypass Xwindows after VMS boots?
I set Window_system to 0 and rebooted. Xwindows still comes up. I checked the window_system parameter after boot and it is still set to '0'. Any other ideas?
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12-09-2011 03:09 PM
12-09-2011 03:09 PM
Re: Bypass Xwindows after VMS boots?
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12-09-2011 03:34 PM
12-09-2011 03:34 PM
Re: Bypass Xwindows after VMS boots?
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12-12-2011 06:27 AM
12-12-2011 06:27 AM
Re: Bypass Xwindows after VMS boots?
See Disabling DECwindows Startup for a newer description.
>(Boy, that "reading" thing is a miracle. In this context, "not particularly reliable" seems to be a synonym for "doomed".)
That text was intended as a generic comment to folks that were then-attempting to use the then-older approach on the then-newer releases. At the time, setting WINDOW_SYSTEM did work on older releases (and was the
"preferred" approach, but it wasn't be reliable on the then-newer releases. That particular text was written shortly after that, well, silly "yes I really mean to disable DECwindows" switch-over was implemented.
Off-hand, I don't recall which version of OpenVMS and DECwindows implemented the WINDOW_SYSTEM reset.
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12-12-2011 12:52 PM
12-12-2011 12:52 PM
Re: Bypass Xwindows after VMS boots?
DE you want Xwindows to be started jus on your console but be able to use it in a later state: You can change systartup_vms.com to bypass Xwindows to start. There are lines that state:
$! The following command should be used only if you do not wish the DECwindows $! startup file to be run. The DECwindows startup file should be run on all $! types of machines, even if they are not using a DECwindows display. If $! you wish to run the DECwindows startup file at a later time during system $! startup remove the comment delimiter ($!) from the line below. $! $! Until a solution if found for the problems using DecWindows, ignore it. $! $! DEFINE DECW$IGNORE_DECWINDOWS TRUE $!
Just uncomment the last line
It will disable DecWindows to start at teh console but allows you to use it at a later moment (eg from a xwindows emulator)
OpenVMS Developer & System Manager
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12-12-2011 03:48 PM
12-12-2011 03:48 PM
Re: Bypass Xwindows after VMS boots?
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12-13-2011 09:05 AM
12-13-2011 09:05 AM
Re: Bypass Xwindows after VMS boots?
The method of using window_system, was changed back in 6.2 of OpenVMS. This was a sysgen resource setting that allowed a system manager to toggle between, EWS, Decwindows, and No Windows.
window_system = 0 - Disabled Windows
window_system = 1 - Decwindows XUI/Motif
window_system = 2 - EWS - Elan Windowing System.
The use of window_system sysgen parameters are no longer used by OpenVMS for enabling or disable the window system. The setting should be set to 1 on all systems.
To disable Decwindows from starting, you can use the logicals
$ DEFINE DECW$IGNORE_DECWINDOWS TRUE
$! Disables the Startup of Decwindows completely, including the loading of any Decw$* images into memory.
$ DEFINE DECW$IGNORE_WORKSTATION TRUE
$! Disables the startup of the Decw$server_0 process (which is the X display Server) but enables and
$! defines the logicals needed to run Decwindows and X based applications remotely to remote X Servers
$! running on PC's using eXcursion, ReflectionX, or Hummingbird eXceed, or any Open Source X Server, Unix
$! system, Linux Systems, or other OpenVMS systems that has the Decw$server_0 process running.
You can find details about these logicals and other Decwindows Logicals in the OpenVMS Decwindows System Management Guide.
http://h71000.www7.hp.com/doc/83final/decwindows/dwindows_mgmt.pdf
Page 2-6 Section: 2.3.1 Definining DECwindows System Logicals
Cheers,
Rick Retterer