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UNIX for Dummies Questions & Answers
single user mode - user accounts passwords
Post 65812 by Perderabo on Wednesday 9th of March 2005 08:54:03 AM
03-09-2005
Ahem, another "relic" checking in here... 
The NCR Tower ran AT&T System V, not Xenix. You need to keep that ADDS terminal since the software needs to run curses based programs with a limited number of supported terminal types.
It's been almost 15 years since I've seen an NCR Tower and I don't remember enough about them to be helpful. However I have a TOWER 32/8XX Support Student Manual dated 1989. It is very terse, but I might have a procedure that may work. You will need an OOS tape to do it. These instructions are for Release 010100 by the way.
"Press the RESET button on the System Control Submodule on the Master AP." I seem to remember opening a door to expose all of the cards to reach this switch, but I'm not sure.
You should get a menu "Select Start-Up Function". Select "1. Load". You will be asked for the load device and you need to use "st00". You should now see a "System Loader Functions" menu. Select "5 Load Out-of-Service System". This should give you a list of terminal types. Pick yours.
You should get a OOS menu. I think "3. Service Utility Shell" is the best choice. You want to get to a bourne shell prompt. Now you need the name of the root disk. If you don't know, try the default:
mount /dev/dsk/10s1 /mnt
Now you need to fix /mnt/etc/passwd to change or remove the root password or create a root equivalent account with no password.. Exactly what you do depends on what programs you have available and I don't know what you have at this point. Any unix expert should be able to take it from here. Good luck.
The NCR Tower ran AT&T System V, not Xenix. You need to keep that ADDS terminal since the software needs to run curses based programs with a limited number of supported terminal types.It's been almost 15 years since I've seen an NCR Tower and I don't remember enough about them to be helpful. However I have a TOWER 32/8XX Support Student Manual dated 1989. It is very terse, but I might have a procedure that may work. You will need an OOS tape to do it. These instructions are for Release 010100 by the way.
"Press the RESET button on the System Control Submodule on the Master AP." I seem to remember opening a door to expose all of the cards to reach this switch, but I'm not sure.
You should get a menu "Select Start-Up Function". Select "1. Load". You will be asked for the load device and you need to use "st00". You should now see a "System Loader Functions" menu. Select "5 Load Out-of-Service System". This should give you a list of terminal types. Pick yours.
You should get a OOS menu. I think "3. Service Utility Shell" is the best choice. You want to get to a bourne shell prompt. Now you need the name of the root disk. If you don't know, try the default:
mount /dev/dsk/10s1 /mnt
Now you need to fix /mnt/etc/passwd to change or remove the root password or create a root equivalent account with no password.. Exactly what you do depends on what programs you have available and I don't know what you have at this point. Any unix expert should be able to take it from here. Good luck.
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LEARN ABOUT REDHAT
mitem_value
mitem_value(3X) mitem_value(3X) NAME
mitem_value - set and get menu item values SYNOPSIS
#include <menu.h> int set_item_value(ITEM *item, bool value); bool item_value(const ITEM *item); DESCRIPTION
If you turn off the menu option O_ONEVALUE (e.g., with set_menu_opts or menu_opts_off; see menu_opts(3X)), the menu becomes multi-valued; that is, more than one item may simultaneously be selected. In a multi_valued menu, you can used set_item_value to select the given menu item (second argument TRUE) or deselect it (second argument FALSE). RETURN VALUE
The function set_item_value returns one of the following: E_OK The routine succeeded. E_SYSTEM_ERROR System error occurred (see errno). E_REQUEST_DENIED The menu driver could not process the request. SEE ALSO
curses(3X), menu(3X). NOTES
The header file <menu.h> automatically includes the header file <curses.h>. PORTABILITY
These routines emulate the System V menu library. They were not supported on Version 7 or BSD versions. AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S. Raymond. mitem_value(3X)