Ok I want to document this in a few places ( 2.8 enhancement). But I just found this comment in the Schema. Are we going to do this, if not I want to remove it. Support will be added in the future for the postscripts attribute to run the scripts before the reboot in AIX.
Lissa K. Valletta 8-3/B10 Poughkeepsie, NY 12601 (tie 293) 433-3102 From: John Simpson/Poughkeepsie/IBM@IBMUS To: xCAT Users Mailing list <[email protected]> Date: 01/04/2013 07:56 AM Subject: Re: [xcat-user] Post BOOT scripts There is another other twist. If the node is diskfull then there is a new site environment variable that we added, RUNBOOTSCRIPTS, which when set to "yes" will invoke the postbootscripts on the installation and each reboot of the node. If it is not set to "yes" then the postbootscripts will only be run on the initial boot and not on any reboots. runbootscripts: If set to 'yes' the scripts listed in the postbootscripts attribute in the osimage and postscripts tables will be run during each reboot of stateful (diskful) nodes. This attribute has no effect on stateless and statelite nodes. Please run the following command after you change the value of this attribute: 'updatenode <nodes> -P setuppostbootscripts' John Simpson HPC Clusters Systems Management 2455 South Road Poughkeepsie, NY 12601-5400 email: [email protected] Phone Ext: 845-433-7917 Tie: 8-293-7917 Fax: 845-433-8363 Inactive hide details for Lissa Valletta---01/04/2013 07:10:52 AM---When they run actually depends on the OS and whether it is Lissa Valletta---01/04/2013 07:10:52 AM---When they run actually depends on the OS and whether it is a diskless or diskfull install. Run man From: Lissa Valletta/Poughkeepsie/IBM@IBMUS To: xCAT Users Mailing list <[email protected]>, Cc: [email protected] Date: 01/04/2013 07:10 AM Subject: Re: [xcat-user] Post BOOT scripts When they run actually depends on the OS and whether it is a diskless or diskfull install. Run man postscripts and look at the explanation of the attributes. These script do run after install. My understanding was you just wanted the script to do different things when run on boot and when run from updatenode. Going back to your note, I see you want the script to only run when booting and not to run on updatenode -P, but only when you specifically run updatenode -P <script>. A couple of solutions come to mind. Probably someone could think of something better. Have two scripts, one in the postscripts table for boot and one not in the postscripts table to run with updatenode. -P <scriptname> Have a parameter that you input when you run updatenode to drive the logic you want. You can run updatenode -P "script parm1 parm2.." When you go on a node, look in /xcatpost/mypostscript. That is the script we generate to run the postscripts. You will see all the exported variables. We export every attribute in the site table plus others. So if it helps you, you can add your own attributes to the site table to drive your scripts. In 2.8 (next release) we opened up this interface even more , you can read about it here, in the section on creating templates. https://sourceforge.net/apps/mediawiki/xcat/index.php?title=Updatenode_Performance_Enhancements Lissa K. Valletta 8-3/B10 Poughkeepsie, NY 12601 (tie 293) 433-3102 Inactive hide details for Craig West ---01/03/2013 10:20:59 PM---Lissa, So the only real difference between postscripts and posCraig West ---01/03/2013 10:20:59 PM---Lissa, So the only real difference between postscripts and postbootscripts is From: Craig West <[email protected]> To: [email protected] Date: 01/03/2013 10:20 PM Subject: Re: [xcat-user] Post BOOT scripts Lissa, So the only real difference between postscripts and postbootscripts is that postbootscripts don't get run during the kickstart phase, and only after the first boot? I was hoping there might be something that was more like a postinstallscript - something that is only run after the machine has been installed, and not via updatenode. Ideally it would still be a postscript so that it can be run manually if required. We could write a postscript that installs an initscript and deletes itself after it is run. > There is also one other option, when you run the script with > updatenode, we export an environment variable in the mypostscript > file which your script can check. This will tell it, it is being run > by updatenode vs during install. > UPDATENODE=1 > export UPDATENODE > > So you will see checks in our postscripts like the following to run > different logic whether it is being run by updatenode or during install. > You could put this check at the start of the script and exit when run by > updatenode. > > if [ -n "$UPDATENODE" ] && [ $UPDATENODE -eq 1 ]; then Ok, thanks this might be useful as a work around the problem. The only issue I do see is that I won't be able to run the script manually either... that is if I run updatenode <node> -P <script> I expect the UPDATENODE variable will be set and thus my script will abort before changes are made, which really means I'd be better off removing the script from the postscripts table and just running it manually when the node comes online - which is what I am looking to avoid. Is there a list of other variables that are set that we can see to get an idea of other tweaks we can do to our scripts? Cheers, Craig. ------------------------------------------------------------------------------ Master HTML5, CSS3, ASP.NET, MVC, AJAX, Knockout.js, Web API and much more. Get web development skills now with LearnDevNow - 350+ hours of step-by-step video tutorials by Microsoft MVPs and experts. 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