[solved]libvirt /dev/net/tun error

I had set up virtualization several weeks ago using libvirt and virt-manager on my system, but when I tried to use it the other day the clients won't launch.  I get this error:
Feb 4 22:39:51 it-alanmlap libvirtd[29964]: Unable to open /dev/net/tun, is tun module loaded?: No such device
/dev/net/tun exists, and has permissions 666.
I tried the procedure outlined here:
http://wiki.libvirt.org/page/Guest_won% … terface%29
But it did not have any effect on the problem.
My VM's are just using NAT networking, but the error persists no matter what I set the networking to.
I'm stumped, any suggestions?
Last edited by lykwydchykyn (2014-02-07 17:38:32)

lykwydchykyn wrote:
brain0 wrote:When you update the kernel, you need to reboot. You updated the kernel without rebooting.
Well, maybe; that's one of the first things I checked, but it looked like I was running the latest kernel.
How exactly did you check? Were
pacman -Q linux
and
uname -r
the same?

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         at sun.applet.AppletClassLoader.access$100(Unknown Source)
         at sun.applet.AppletClassLoader$1.run(Unknown Source)
         at java.security.AccessController.doPrivileged(Native Method)
         at sun.applet.AppletClassLoader.findClass(Unknown Source)
         at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)
         at java.lang.ClassLoader.loadClass(Unknown Source)
         at sun.applet.AppletClassLoader.loadClass(Unknown Source)
         at java.lang.ClassLoader.loadClass(Unknown Source)
         at sun.applet.AppletClassLoader.loadCode(Unknown Source)
         at sun.applet.AppletPanel.createApplet(Unknown Source)
         at sun.plugin.AppletViewer.createApplet(Unknown Source)
         at sun.applet.AppletPanel.runLoader(Unknown Source)
         at sun.applet.AppletPanel.run(Unknown Source)
         at java.lang.Thread.run(Unknown Source)
    load: class oracle.forms.engine.Main not found.
    java.lang.ClassNotFoundException: java.io.IOException: javax.net.ssl.SSLException: SSL handshake failed: X509CertChainInvalidErr
         at oracle.security.ssl.OracleSSLSocketImpl.startHandshake(Unknown Source)
         at oracle.jinitiator.protocol.https.HttpsClient.doConnect(Unknown Source)
         at sun.net.www.http.HttpClient.openServer(Unknown Source)
         at sun.net.www.http.HttpClient.openServer(Unknown Source)
         at sun.net.www.http.HttpClient.<init>(Unknown Source)
         at sun.net.www.http.HttpClient.<init>(Unknown Source)
         at sun.plugin.protocol.jdk12.http.HttpClient.<init>(Unknown Source)
         at oracle.jinitiator.protocol.https.HttpsClient.<init>(Unknown Source)
         at oracle.jinitiator.protocol.https.HttpsClient.New(Unknown Source)
         at oracle.jinitiator.protocol.https.HttpsURLConnection$1.run(Unknown Source)
         at java.security.AccessController.doPrivileged(Native Method)
         at oracle.jinitiator.protocol.https.HttpsURLConnection.connect(Unknown Source)
         at sun.plugin.protocol.jdk12.http.HttpURLConnection.getInputStream(Unknown Source)
         at java.net.HttpURLConnection.getResponseCode(Unknown Source)
         at sun.applet.AppletClassLoader.getBytes(Unknown Source)
         at sun.applet.AppletClassLoader.access$100(Unknown Source)
         at sun.applet.AppletClassLoader$1.run(Unknown Source)
         at java.security.AccessController.doPrivileged(Native Method)
         at sun.applet.AppletClassLoader.findClass(Unknown Source)
         at sun.plugin.security.PluginClassLoader.findClass(Unknown Source)
         at java.lang.ClassLoader.loadClass(Unknown Source)
         at sun.applet.AppletClassLoader.loadClass(Unknown Source)
         at java.lang.ClassLoader.loadClass(Unknown Source)
         at sun.applet.AppletClassLoader.loadCode(Unknown Source)
         at sun.applet.AppletPanel.createApplet(Unknown Source)
         at sun.plugin.AppletViewer.createApplet(Unknown Source)
         at sun.applet.AppletPanel.runLoader(Unknown Source)
         at sun.applet.AppletPanel.run(Unknown Source)
         at java.lang.Thread.run(Unknown Source)

    You get the same error for all jar-files, not only for the ones regarding WEBUTIL. Does any form run with the specified config-section you use for webutil?

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