On Wed, Jul 2, 2008 at 9:19 PM, Jordan Brown <Jordan.Brown at sun.com> wrote: > Mike Gerdts wrote: >> >> Sometimes a runonce service needs to trigger a reboot. It looks to me >> as though all runonce services will be running at the same time - >> making such a thing somewhat risky. Is this something that you are >> intending to support? > > First, note that this is something I just threw together this afternoon... > it hasn't been deeply designed. > > If a particular run-once had additional dependencies, presumably they could > be specified for its instance. Whether that'd let it reboot safely... > maybe. You'd really like to single-thread something that wants to reboot > the system, so that nothing else is in the middle of doing its work.
Perhaps a special exit code for "reboot required" would cause run-once to trigger a dependent service to initiate a reboot after all the run-once services had completed. >>> sh -c "$RUN" >> >> One of the things that I commonly need to run on first boot is an ELF >> executable. Is there a reason to force a Bourne shell wrapper? As >> currently implemented it could cause confusion for software targeting >> OpenSolaris and Solaris because /bin/sh in OpenSolaris 2008.05 is >> really ksh93. This would mean that a Korn shell script tested on >> OpenSolaris will work just fine but will fail on Solaris 10. > > I think you missed the "-c". That means "Hey, shell, here is a command > line. Process it.". What it means is that the command that you specify > must be acceptable to the Bourne shell. That command might well be the name > of an ELF executable, or a perl script, or... whatever. Yep - I missed the -c. Looks good. If the run-once service leaves something running in the background the "svcadm disable" may kill off that thing. Is ctrun needed in the mix? > You could set $RUN to any of > > /opt/myapp/myprog > /bin/rm -rf / > echo hello > echo hello > /etc/passwd > echo $PATH > > and they would all do sensible and obvious things. So long as shooting oneself in the foot is sensible, I agree. :) -- Mike Gerdts http://mgerdts.blogspot.com/
