Public bug reported: Hello, I started a virtual machine on the command line in Ubuntu 12.10 64bit via: sudo qemu-system-x86_64 -m 2048 -enable-kvm -cpu core2duo -usb -device usb-tablet,id=input0 -vga std -vnc 0.0.0.0:10 -net nic -net tap -drive file=/vmachine.qcow2
Instead of starting the machine, I got an error: /etc/kvm/kvm-ifup: could not launch network script qemu-system-x86_64: -net tap: Device 'tap' could not be initialized In any case I can understand, that the script cannot be launched since it doesn't exist. I found a blog, containing a script, that shows some solution for the problem. http://www.sjvs.nl/?p=147 But this does not work. Probably the script is truncated somehow (no brackets are closed in the for loop). I created a bridge as described in https://help.ubuntu.com/community/KVM/Networking Thus I installed libcap2-bin and bridge-utils and I changed my /etc/network/interfaces to auto lo iface lo inet loopback auto eth0 iface eth0 inet manual auto br0 iface br0 inet static address 192.168.115.15 network 192.168.115.0 netmask 255.255.255.0 broadcast 192.168.115.255 gateway 192.168.115.254 dns-nameservers 192.168.115.10 dns-search sirah.int bridge_ports eth0 bridge_stp off bridge_fd 0 bridge_maxwait 0 I executed sudo setcap cap_net_admin=ei /usr/bin/qemu-system-x86_64 and edited /etc/security/capability.conf. The kvm command mentioned above worked on Ubuntu 12.04 with the same adjustments. There the machine started and it was bridged to my network. At the moment I'm using kvm version 1:84+dfsg-0ubuntu16+1.2.0+noroms+0ubuntu2. ** Affects: kvm (Ubuntu) Importance: Undecided Status: New ** Description changed: Hello, I started a virtual machine on the command line in Ubuntu 12.10 64bit via: sudo qemu-system-x86_64 -m 2048 -enable-kvm -cpu core2duo -usb -device usb-tablet,id=input0 -vga std -vnc 0.0.0.0:10 -net nic -net tap -drive file=/vmachine.qcow2 Instead of starting the machine, I got an error: /etc/kvm/kvm-ifup: could not launch network script qemu-system-x86_64: -net tap: Device 'tap' could not be initialized In any case I can understand, that the script cannot be launched since it doesn't exist. - I found a blog, containing a script, that shows some solution for the problem. But this does not work. Probably the script is truncated somehow (no brackets are closed in the for loop). + I found a blog, containing a script, that shows some solution for the problem. + http://www.sjvs.nl/?p=147 + But this does not work. Probably the script is truncated somehow (no brackets are closed in the for loop). I created a bridge as described in https://help.ubuntu.com/community/KVM/Networking Thus I installed libcap2-bin and bridge-utils and I changed my /etc/network/interfaces to auto lo iface lo inet loopback auto eth0 iface eth0 inet manual auto br0 iface br0 inet static - address 192.168.115.15 - network 192.168.115.0 - netmask 255.255.255.0 - broadcast 192.168.115.255 - gateway 192.168.115.254 - dns-nameservers 192.168.115.10 - dns-search sirah.int - bridge_ports eth0 - bridge_stp off - bridge_fd 0 - bridge_maxwait 0 + address 192.168.115.15 + network 192.168.115.0 + netmask 255.255.255.0 + broadcast 192.168.115.255 + gateway 192.168.115.254 + dns-nameservers 192.168.115.10 + dns-search sirah.int + bridge_ports eth0 + bridge_stp off + bridge_fd 0 + bridge_maxwait 0 I executed sudo setcap cap_net_admin=ei /usr/bin/qemu-system-x86_64 and edited /etc/security/capability.conf. The kvm command mentioned above worked on Ubuntu 12.04 with the same adjustments. There the machine started and it was bridged to my network. At the moment I'm using kvm version 1:84+dfsg-0ubuntu16+1.2.0+noroms+0ubuntu2. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to kvm in Ubuntu. https://bugs.launchpad.net/bugs/1091579 Title: Networking when starting kvm in commandline To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kvm/+bug/1091579/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
