"Hall, Ken (IDS ECCS)" wrote: > I had to add the "ctrlaltdel" line to /etc/inittab. I also made a > modification to the "/etc/init.d/halt" script to issue "hcp logoff" at the > end. For some reason, the options in zipl.conf caused me > problems, but I forget exactly why.
To clear this matter up a bit, here is a quick description of how the signal shutdown facility in Linux works: - any guest running a Linux kernel compiled with CONFIG_SCLP enabled is listening for a 'signal shutdown' - once a 'signal shutdown' is received by Linux, the ctrlaltdel action is triggered - Linux will call the command defined in /etc/inittab for ctrlaltdel. This should be a 'shutdown' command. - after the shutdown command has finished, Linux will signal completion of 'signal shutdown' processing. - the system that issued 'signal shutdown' will log off guests that signalled the completion of 'signal shutdown' processing - any system which is signalled but does not signal completion after a timeout interval (if specified) will be forced to log off I recommend the following approach: 1) add an entry for 'ctrlaltdel' to /etc/inittab. The associated command should be a 'shutdown' command. 2) do not modify the init scripts as this will prevent the kernel from signalling completion of 'signal shutdown' processing 3) do not specify 'vmpoff' or 'vmhalt' commands as these will be ignored Hope this helps. Regards, Peter Oberparleiter
