On Fri, Jul 30, 2010 at 7:11 PM, Patrick Nolan <patrick.no...@stanford.edu> wrote: > I haven't written for a few days. I have tried a few things, with > no success.
I was wondering. > > I haven't yet tried UYOK because I'm not sure how to make a proper > kernel that would be better than the stock one. It's not clear > what needs to be changed. I don't think you need that. > (One thing that's never been clear to me is whether CentOS 5.2 can > handle the hardware on these new systems. The motherboards come > from SuperMicro. The head node is an H8DGU-F and the compute > nodes are H8QG6-F. All have Opteron 6100 CPUs and AMD chipsets.) > Hmm. Sounds a little like some of my hardware. Attach a USB DVD drive and install a node by hand if you suspect hardware issues. The installer will prompt you for a missing driver (for the USB drive), but you can pick it from the list. > I'm running out of ideas. At the bottom of the barrel there > are a couple that would be pretty painful: > > * Wipe out everything on the head node and put CentOS 5.2 on it. > I might get lynched by the developers who have already installed > a lot of stuff. > Just thought of this: Are you disabling selinux on the compute nodes? You need to do that. To verify this is not the problem... boot one of the compute nodes and interupt it before grub starts the OS. Edit the boot line, adding "selinux=0". If that solves the problem, make the change permanent in /boot/grub/menu.lst. Change it on your image before installing/reinstalling the nodes. As for reinstalling the head node... if the developers installed to /home/local or something, just back up their work and restore it after reinstalling. If you go that route, you might want to try 6.0.5. Someone from columbia recently posted additional packages that add all of the missing functionality of the older version. > * Pull one of the compute nodes out of the rack and remove its > InfiniBand card, just to see if it's the root of the problem. > I don't think that is the problem either. ------------------------------------------------------------------------------ The Palm PDK Hot Apps Program offers developers who use the Plug-In Development Kit to bring their C/C++ apps to Palm for a share of $1 Million in cash or HP Products. Visit us here for more details: http://p.sf.net/sfu/dev2dev-palm _______________________________________________ Oscar-users mailing list Oscar-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oscar-users
