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musv
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Joined: 01 Dec 2002
Posts: 3337
Location: de
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 Posted: Tue May 20, 2014 4:51 pm Post subject: [solved] libvirt demands ipv6 |
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Hi there,
after a long time with some updates I wanted to start qemu with libvirt. And of course, it's not running anymore:
| Code: | Virtuelles Netzwerk «default» konnte nicht gestartet werden: direct firewall backend requested, but /sbin/ip6tables is not available: Datei oder Verzeichnis nicht gefunden
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/uihelpers.py", line 689, in validate_network
virnet.create()
File "/usr/lib64/python2.7/site-packages/libvirt.py", line 2669, in create
if ret == -1: raise libvirtError ('virNetworkCreate() failed', net=self)
libvirtError: direct firewall backend requested, but /sbin/ip6tables is not available: Datei oder Verzeichnis nicht gefunden |
Or in English:
Virtual network «default» couldn't be started, direct firewall backend requested, but /sbin/ip6tables is not available: File or directory not found.
That sounds logical to me. I don't have any ipv6 support yet. But I didn't find an option to deactivate ipv6. For my side, there's no need for any ipv6 support. How can I deactivate that?
If I remove the network adapters from the virtual machine, I can start the guests.
Installed versions:
- libvirt-1.2.4 (caps libvirtd macvtap nfs nls numa parted pcap policykit qemu systemd udev vepa virt-network -audit -avahi -firewalld -fuse -iscsi -lvm -lxc -openvz -phyp -rbd -sasl -selinux -uml -virtualbox -xen ELIBC="glibc")
- qemu-2.0.0 ((aio alsa bluetooth caps curl fdt filecaps gtk jpeg ncurses opengl png python sdl seccomp spice ssh static-user threads usb uuid vhost-net vnc xfs -accessibility -debug -glusterfs -iscsi -pulseaudio -rbd -sasl -selinux -smartcard -static -static-softmmu -systemtap -tci -test -tls -usbredir -vde -virtfs -xattr -xen KERNEL="linux -FreeBSD" PYTHON_TARGETS="python2_7 -python2_6" QEMU_SOFTMMU_TARGETS="arm i386 x86_64 -aarch64 -alpha -cris -lm32 -m68k -microblaze -microblazeel -mips -mips64 -mips64el -mipsel -moxie -or32 -ppc -ppc64 -ppcemb -s390x -sh4 -sh4eb -sparc -sparc64 -unicore32 -xtensa -xtensaeb")
Last edited by musv on Sun May 25, 2014 6:34 am; edited 1 time in total |
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turtles
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Joined: 31 Dec 2004
Posts: 1654
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| Posted: Wed May 21, 2014 1:38 am Post subject: |
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What are your use flags? Are you not using virt-network?
Oops nevermind I see you posted them right there.
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musv
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Joined: 01 Dec 2002
Posts: 3337
Location: de
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| Posted: Sun May 25, 2014 6:33 am Post subject: |
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It seems libvirt is really looking for the hardcoded "/sbin/ip6tables". 
I've set a Symlink:
| Code: | | lrwxrwxrwx 1 root root 8 25. Mai 08:01 /sbin/ip6tables -> iptables |
Works. |
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Moriah
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Joined: 27 Mar 2004
Posts: 2360
Location: Kentucky
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| Posted: Sat Aug 23, 2014 7:32 pm Post subject: |
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Ran into the same problem today. Hadn't used KVM in several weeks, did a few updates during that time, then KVM failed to start for the same reason. The symlink fix was elegantly simple, and work great for me. Thanks for the answer! 
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