On Mon December 28 2009, John A. Sullivan III wrote: > On Sun, 2009-12-27 at 05:01 -0600, Michael S. Zick wrote: > > On Sun December 27 2009, John A. Sullivan III wrote: > > > Hello, all. We are trying to install an Ubuntu Karmic amd64 guest onto > > > a CentOS 5.4 VServer host running kernel 2.6.28.7-vs2.3.0.36.7. apt-get > > > install xserver-xorg is failing on configuration. We are seeing errors > > > such as: > > > > > > kernel: vxW: [XsysctlX,31495:#40042|40042|40042] denied 22 access to > > > proc:ffff8801b15ca7b0[#0,65478792] > > > > > > > By design, guests do not have access to the host hardware. > > > > You can reduce the isolation provided to a guest by granting it the > > access to hardware and/or changing its capability sets. > > For X11, that is a whole lot of added capabilities to keep it happy. > > > > Or you can run your graphics using non-hardware X11, such as VNC. > > > > You should be able to find information on both solutions in the Wiki. > > > > Mike > > > >From what I've seen on other threads, it seems like it is trying to do > > > something to /proc/mtrr. We'll do battle with this on Monday but, if > > > someone knows what this is off the top of their head and can point us in > > > the right direction, we'd certainly appreciate it. Thanks - John > <snip> > Thanks. Just getting back to this now. That is what we do - these are > virtual desktops which we deliver using NX either via NoMachine's or > X2Go's (www.x2go.org) implementation. It worked fine under Hardy but > something must have changed in Karmic. I'll keep digging and let the > list know what I find. If anyone has already fought this battle, please > let me know! - John > Karmic uses a much newer kernel, complete with changes in the mtrr handling and a different version of X11 to match. You should be able to run the Karmic installation with the older kernel (I think). Mike > >