Author Archives: admin

Assign hardware to DomU with PCIBack as module [Update]

If the Dom0’s kernel is built with pciback as a module (grep CONFIG_XEN_PCIDEV_BACKEND /boot/config-`uname -r`), using the kernel command-line parameter pciback.hide won’t work. There is of course more than solution how you can assign hardware to a domU, but the probably easiest one is to to pass the hide parameter to the pciback module in /etc/modprobe.conf: The xensouce mailing list… Read more »

Shutting down xen domUs without saving them

Per default, CentOS 5.3 saves a domU’s state when the hypervisor is shut down. In principle this a nice behaviour: The domU will restore its state automagically when the hypervisor comes up again and just continue working. But there are some services (e.g. mldonkey) that don’t like to be restored and refuse to work (i.e. keep in a blocked state… Read more »

Online resizing ext3 partitions

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First, we have to delete our current partition and create a bigger one (don’t be afraid, no data will be lost): Type m to get a list of all commands: Let’s print out the partition table and look for the ext3 partition, we want to enlarge (it’s easy here, there is just one partition): Now we delete the old partition… Read more »

Staring X applications through an ssh tunnel

If you encounter the problem of being unable to start an X application through an ssh-tunnel and run into an error message similar to or you should check that you used ssh -X[…] to enable X11 forwarding when connecting to the server that the xauth-package is installed correctly on your server xauth is used to edit and display the authorization… Read more »

Customizing Gnome keyboard shortcuts

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It’s possible to define keyboard shortcuts for your own commands in addition to the predefined Gnome actions. Since metacity is Gnome’s default window manager, you have to edit the metacity keys in your GConf configuration system. The easiest way is doing it with the gconf-editor (although you can of course edit the xml-definition in ~/.gconf/apps/metacity/ by hand). So open your… Read more »