NAME¶

chshut - change the shutdown actions for Linux on System z

SYNOPSIS¶

chshut [halt | poff | reboot] [ipl | reipl | stop | vmcmd] [VM Command]

DESCRIPTION¶

chshut is a tool that can be used to configure the Linux on System z shutdown actions. The tool handles up to three parameters. The first specifies the shutdown trigger. A shutdown trigger is an event that will stop Linux. The following shutdown triggers are supported: "halt", "power off" and "reboot". There exists a fourth shutdown trigger "panic" which is controlled by the dumpconf(8) service script. The second argument specifies the shutdown action that you want to execute in case of the specified trigger. Valid action arguments are "ipl", "reipl", "stop" and "vmcmd". In case you have chosen "vmcmd" as action a third parameter is used for the CP command you want to execute under z/VM. Note: VM CP commands, device addresses, and guest names must be uppercase.

OPTIONS¶

-h or --help

Print help information, then exit.

 

-v or --version

Print version information, then exit.

 

EXAMPLES¶

Log off the z/VM guest if the Linux poweroff(8) command was executed successfully: # chshut poff vmcmd LOGOFF If the system is halted it should start again: # chshut halt ipl If the Linux poweroff(8) command is executed, send a message to guest MASTER and automatically log off the guest: # chshut poff vmcmd "MSG MASTER Going down" vmcmd "LOGOFF"

NOTES¶

For most Linux distributions, "halt" is mapped by default to "power off". In this case you have to use the shutdown trigger "poff" instead of "halt".

SEE ALSO¶

dumpconf(8) lsshut(8)