# Deployment failed when using 8021Q Vlan Network Driver

**URL:** <https://forum.opennebula.io/t/deployment-failed-when-using-8021q-vlan-network-driver/1696>\
**Category:** Product Support\
**Created:** [January 20, 2016, 5:46pm UTC](https://forum.opennebula.io/t/deployment-failed-when-using-8021q-vlan-network-driver/1696 "2016-01-20T17:46:02Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![svega](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/svega/32/5504_2.png) [@svega](https://forum.opennebula.io/u/svega)\
**Post date:** [January 20, 2016, 5:46pm UTC](https://forum.opennebula.io/t/deployment-failed-when-using-8021q-vlan-network-driver/1696/1 "2016-01-20T17:46:02Z")

</div>

Hello  
I’m having this [same issue](https://forum.opennebula.io/t/vm-deployment-failed-host-with-openvswitch-crash-in-nic-rb/506)  
with the difference that I’m using 8021Q Network Driver, LXC and OpenNebula 4.14.2. Is there any workaround in this case?

This is the log

Wed Jan 20 12:04:09 2016 [Z0][VM][I]: New state is ACTIVE  
Wed Jan 20 12:04:10 2016 [Z0][VM][I]: New LCM state is PROLOG  
Wed Jan 20 12:04:11 2016 [Z0][VM][I]: New LCM state is BOOT  
Wed Jan 20 12:04:11 2016 [Z0][VMM][I]: Generating deployment file: /var/lib/one/vms/4/deployment.0  
Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: Command execution fail: /var/tmp/one/vnm/802.1Q/pre 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  
Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: /var/tmp/one/vnm/nic.rb:36:in `new_nic': undefined method`new’ for nil:NilClass (NoMethodError)  
Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /var/tmp/one/vnm/vm.rb:46:in `block in initialize' Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /usr/lib/ruby/2.1.0/rexml/element.rb:902:in`block in each’  
Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /usr/lib/ruby/2.1.0/rexml/xpath.rb:67:in `each' Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /usr/lib/ruby/2.1.0/rexml/xpath.rb:67:in`each’  
Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /usr/lib/ruby/2.1.0/rexml/element.rb:902:in `each' Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /var/tmp/one/vnm/vm.rb:45:in`initialize’  
Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /var/tmp/one/vnm/vnm\_driver.rb:46:in `new' Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /var/tmp/one/vnm/vnm_driver.rb:46:in`initialize’  
Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /var/tmp/one/vnm/vlan.rb:29:in `initialize' Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /var/tmp/one/vnm/802.1Q/vlan_tag_driver.rb:38:in`initialize’  
Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /var/tmp/one/vnm/vnm\_driver.rb:56:in `new' Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /var/tmp/one/vnm/vnm_driver.rb:56:in`from\_base64’  
Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: from /var/tmp/one/vnm/802.1Q/pre:24:in `'  
Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: ExitCode: 1  
Wed Jan 20 12:04:12 2016 [Z0][VMM][I]: Failed to execute network driver operation: pre.  
Wed Jan 20 12:04:12 2016 [Z0][VMM][E]: Error deploying virtual machine  
Wed Jan 20 12:04:12 2016 [Z0][VM][I]: New LCM state is BOOT\_FAILURE

Thanks

---

<div class="post-metadata">

**Author:** ![svega](https://yyz1.discourse-cdn.com/flex031/user_avatar/forum.opennebula.io/svega/32/5504_2.png) [@svega](https://forum.opennebula.io/u/svega)\
**Post date:** [January 20, 2016, 6:05pm UTC](https://forum.opennebula.io/t/deployment-failed-when-using-8021q-vlan-network-driver/1696/2 "2016-01-20T18:05:24Z")

</div>

I think I found a workaround.  
In case anyone else encounters this issue, modify **/var/lib/one/remotes/vnm/vnm\_driver.rb**. Find this:

```
    def detect_hypervisor
        lsmod = `#{VNMNetwork::COMMANDS[:lsmod]}`
        xen_file = "/proc/xen/capabilities"
        kvm_dir = "/sys/class/misc/kvm"

        if File.exists?(xen_file)
            "xen"
        elsif lsmod.match(/kvm/) || File.exists?(kvm_dir)
            "kvm"
        else
            nil
        end
    end

```

and replace it with this

```
    def detect_hypervisor
        lsmod = `#{VNMNetwork::COMMANDS[:lsmod]}`
        xen_file = "/proc/xen/capabilities"
        kvm_dir = "/sys/class/misc/kvm"

        if File.exists?(xen_file)
            "xen"
        else
            "kvm"
        end
    end

```

[Here](https://forum.opennebula.io/t/vm-deployment-failed-host-with-openvswitch-crash-in-nic-rb/506) @ruben already explained why this happened. In this case, I’m using nested virtualization (node is a KVM virtual machine instead of a physical machine), this could be the reason why **lsmod | grep kvm** comes out empty.