nodech <noderange> bootparams.addkcmdline= That should leave group definition intact and explicitly clear the override. I would have guessed " " would have worked, but the above definitely does.
From: "Pocina, Goran" <goran.poc...@deshawresearch.com> To: xCAT Users Mailing list <xcat-user@lists.sourceforge.net>, Date: 12/03/2012 03:15 PM Subject: Re: [xcat-user] Netbooting off a floppy or CD image. Tom, Thanks. If I can find a Linux based tool for updating the CMOS on these supermicro nodes, then runimage seems the way to go. Oddly, supermicro doesn’t seem to have one. Xiao, Jarrod, Thanks, boottarget works very well once “os=boottarget profile=bprofile” are set. Turns out its also well documented in wiki at http://sourceforge.net/apps/mediawiki/xcat/index.php?title=BootTarget There was one surprise. The node’s “addkcmdline” attribute was appended to the memdisk command line even after “addkcmdline” was set to a space at the node level. So if addkcmdline is defined at a group level, the only way to prevent it being appended is to remove the definition in the group. Hmmm, it might also be possible to add another group with a blank definition earlier in the group list. Didn’t try that. Thanks again, Goran From: Pocina, Goran Sent: Friday, November 30, 2012 10:12 AM To: xCAT Users Mailing list Subject: [xcat-user] Netbooting off a floppy or CD image. The following pxe boot file will boot a FreeDOS floppy disk image that runs a CMOS utility (after memdisk and the image file are copied to /tftpboot): [root@drdxcatmn1 xcat]# cat /tftpboot/pxelinux.cfg/develkv8 #run CMOS utility on FreeDOS DEFAULT Floppy LABEL Floppy LINUX memdisk APPEND initrd=xcat/floppy/cmos-settings.img IPAPPEND 2 Is there a way to have xCAT generate a similar pxe file when needed? Say when a “nodeset host netboot=smcmos” is run? It looks like the boottarget table can help, but I may not be setting it up correctly because “nodeset host netboot=smcmos” generates a missing kernel error. [root@drdxcatmn1 xcat]# tabdump boottarget #bprofile,kernel,initrd,kcmdline,comments,disable "smcmos","memdisk","xcat/floppy/cmos-settings.img",,, [root@drdxcatmn1 xcat]# nodeset develkv8 netboot=smcmos Error: Did you run "genimage" before running "packimage"? kernel cannot be found Error: Some nodes failed to set up netboot resources, aborting Also tried copying /tftpboot/memdisk to /tftpboot/xcat/netboot/smcmos/memdisk, but no help. Any suggestions? Thanks, Goran ------------------------------------------------------------------------------ Keep yourself connected to Go Parallel: BUILD Helping you discover the best ways to construct your parallel projects. http://goparallel.sourceforge.net _______________________________________________ xCAT-user mailing list xCAT-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xcat-user
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