Power off on SCO 5.0.6 Post: 303014283

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Operating Systems SCO Power off on SCO 5.0.6 Post 303014283 by jgt on Thursday 8th of March 2018 01:14:37 PM

03-08-2018

Registered User

Read the following section of the init command man page.

Code:

0                                                                            
       Shut the machine down so it is safe to remove the power.              
       Have the machine remove power if it can. This state can be            
       executed only from the console.                                       
       Note that init 0 should not be used if you have a USB                 
       keyboard attached to the console. During an init 0, the               
       USB stack gets shut down and the system then waits for a              
       keyboard keypress interrupt before rebooting. Since USB is            
       gone, there's no way for a keypress on the USB keyboard to            
       get serviced, and the system does not respond. If this                
       occurs, you must either press the hardware reset button or            
       power cycle the system.                                               
1                                                                            
       Put the system in single-user mode. Unmount all file                  
       systems except the root filesystem. All user processes are            
       killed except those connected to the console. It is                   
       recommended that this state be executed only from the                 
       console.                                                              
2                                                                            
       Put the system in multiuser mode. All multiuser                       
       environment terminal processes and daemons are spawned.               
   5                                                                            
          Stop the UNIX system and go to the firmware monitor.                  
   6                                                                            
          Stop the UNIX system and reboot to the run-level defined              
          by the initdefault entry in /etc/inittab.

The above is from the 6.0.0 documentation but is backwards compatible to Xenix.

---------- Post updated at 01:14 PM ---------- Previous update was at 01:09 PM ----------

If you are unable to power down the system, because the cmos does not support it, you may be able to create a workaround using a UPS that you can send a "power off in 5 minutes" command to just prior to shutting down the SCO system.

jgt

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boot up failure unix sco after power failure

hi power went out. next day unix sco wont boot up error code 303. any help appreciated as we are clueless.

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shutdown

SHUTDOWN(8)							     shutdown							       SHUTDOWN(8)

NAME

       shutdown - Halt, power-off or reboot the machine

SYNOPSIS

       shutdown [OPTIONS...] [TIME] [WALL...]

DESCRIPTION

       shutdown may be used to halt, power-off or reboot the machine.

       The first argument may be a time string (which is usually "now"). Optionally, this may be followed by a wall message to be sent to all
       logged-in users before going down.

       The time string may either be in the format "hh:mm" for hour/minutes specifying the time to execute the shutdown at, specified in 24h clock
       format. Alternatively it may be in the syntax "+m" referring to the specified number of minutes m from now.  "now" is an alias for "+0",
       i.e. for triggering an immediate shutdown. If no time argument is specified, "+1" is implied.

       Note that to specify a wall message you must specify a time argument, too.

       If the time argument is used, 5 minutes before the system goes down the /run/nologin file is created to ensure that further logins shall
       not be allowed.

OPTIONS

       The following options are understood:

       --help
	   Prints a short help text and exits.

       -H, --halt
	   Halt the machine.

       -P, --poweroff
	   Power-off the machine (the default).

       -r, --reboot
	   Reboot the machine.

       -h
	   Equivalent to --poweroff, unless --halt is specified.

       -k
	   Do not halt, power-off, reboot, just write wall message.

       --no-wall
	   Do not send wall message before halt, power-off, reboot.

       -c
	   Cancel a pending shutdown. This may be used cancel the effect of an invocation of shutdown with a time argument that is not "+0" or
	   "now".

EXIT STATUS

       On success, 0 is returned, a non-zero failure code otherwise.

SEE ALSO

       systemd(1), systemctl(1), halt(8), wall(1)

systemd 208															       SHUTDOWN(8)

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shutdown