VirtualBox Error VERR_CFGM_VALUE_NOT_FOUND (SOLVED)

[jmazaredo]

I got this problem when I'm trying to configure forwarding port

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VBoxManage setextradata WindowsXp "VBoxInternal/Devices/pcnet/0/LUN#0/Config/www/HostPort" 80
VBoxManage setextradata WindowsXp "VBoxInternal/Devices/pcnet/0/LUN#0/Config/www/GuestPort" 80
VBoxManage setextradata WindowsXp "VBoxInternal/Devices/pcnet/0/LUN#0/Config/www/Protocol" TCP

After struggling for forward to work changed the network card from pcnet to intel pro .

on the process of starting the virtualbox this error showed. Tried to change the card back to pcnet but no avail.

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Fixed the error

jmazaredo@linux:~/.VirtualBox/Machines/WindowsXp$ gedit WindowsXp.xml

removed what seems to be get stacked up

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<ExtraDataItem name="VBoxInternal/Devices/e1000/0/LUN#0/Config/www/GuestPort" value="80"/>
      <ExtraDataItem name="VBoxInternal/Devices/e1000/0/LUN#0/Config/www/HostPort" value="80"/>
      <ExtraDataItem name="VBoxInternal/Devices/e1000/0/LUN#0/Config/www/Protocol" value="TCP"/>
      <ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/ssh/GuestPort" value="22"/>
      <ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/ssh/HostPort" value="22"/>
      <ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/ssh/Protocol" value="TCP"/>
      <ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/www/GuestPort" value="80"/>
      <ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/www/HostPort" value="80"/>
      <ExtraDataItem name="VBoxInternal/Devices/pcnet/0/LUN#0/Config/www/Protocol" value="TCP"/>

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<Adapter slot="0" enabled="true" MACAddress="080027666DC5" cable="true" speed="0" type="Am79C970A"/>
        <Adapter slot="1" enabled="false" MACAddress="080027368A27" cable="true" speed="0" type="82540EM">
          <BridgedInterface name="wlan0"/>
        </Adapter>
        <Adapter slot="2" enabled="false" MACAddress="080027CEB988" cable="true" speed="0" type="Am79C973">
          <InternalNetwork name="intnet"/>
        </Adapter>
        <Adapter slot="3" enabled="false" MACAddress="080027CDDF91" cable="true" speed="0" type="virtio">
          <InternalNetwork name="intnet"/>
        </Adapter>
        <Adapter slot="4" enabled="false" MACAddress="0800273E9836" cable="true" speed="0" type="Am79C973"/>
        <Adapter slot="5" enabled="false" MACAddress="080027D69F71" cable="true" speed="0" type="Am79C973"/>
        <Adapter slot="6" enabled="false" MACAddress="080027D98786" cable="true" speed="0" type="Am79C973"/>
        <Adapter slot="7" enabled="false" MACAddress="080027FEB146" cable="true" speed="0" type="Am79C973"/>

VirtualBox should not be working when editing.

[ome bos]

Hi

I got the exact same problem on my Mac host with Ubuntu guest. This came, I believe, because I first tried to forward some ports incorrectly.

I removed the doubled, and incorrect, settings in the <ExtraData> tag, but can't simply see what you mean with the 'doubles' of <Adapter> in the <Network> section.

Here's the code:

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<Network>
        <Adapter slot="0" enabled="true" MACAddress="080027F3FAB2" cable="true" speed="0" type="82540EM">
          <NAT>
            <DNS pass-domain="true" use-proxy="false" use-host-resolver="false"/>
            <Alias logging="false" proxy-only="false" use-same-ports="false"/>
          </NAT>
        </Adapter>
        <Adapter slot="1" enabled="false" MACAddress="080027671738" cable="true" speed="0" type="82540EM">
          <DisabledModes>
            <NAT>
              <DNS pass-domain="true" use-proxy="false" use-host-resolver="false"/>
              <Alias logging="false" proxy-only="false" use-same-ports="false"/>
            </NAT>
          </DisabledModes>
        </Adapter>
        <Adapter slot="2" enabled="false" MACAddress="080027EFB90B" cable="true" speed="0" type="82540EM">
          <DisabledModes>
            <NAT>
              <DNS pass-domain="true" use-proxy="false" use-host-resolver="false"/>
              <Alias logging="false" proxy-only="false" use-same-ports="false"/>
            </NAT>
          </DisabledModes>
        </Adapter>
        <Adapter slot="3" enabled="false" MACAddress="080027DB1232" cable="true" speed="0" type="82540EM">
          <DisabledModes>
            <NAT>
              <DNS pass-domain="true" use-proxy="false" use-host-resolver="false"/>
              <Alias logging="false" proxy-only="false" use-same-ports="false"/>
            </NAT>
          </DisabledModes>
        </Adapter>
        <Adapter slot="4" enabled="false" MACAddress="0800272094AA" cable="true" speed="0" type="82540EM">
          <DisabledModes>
            <NAT>
              <DNS pass-domain="true" use-proxy="false" use-host-resolver="false"/>
              <Alias logging="false" proxy-only="false" use-same-ports="false"/>
            </NAT>
          </DisabledModes>
        </Adapter>
        <Adapter slot="5" enabled="false" MACAddress="08002704DC8D" cable="true" speed="0" type="82540EM">
          <DisabledModes>
            <NAT>
              <DNS pass-domain="true" use-proxy="false" use-host-resolver="false"/>
              <Alias logging="false" proxy-only="false" use-same-ports="false"/>
            </NAT>
          </DisabledModes>
        </Adapter>
        <Adapter slot="6" enabled="false" MACAddress="080027B39FB4" cable="true" speed="0" type="82540EM">
          <DisabledModes>
            <NAT>
              <DNS pass-domain="true" use-proxy="false" use-host-resolver="false"/>
              <Alias logging="false" proxy-only="false" use-same-ports="false"/>
            </NAT>
          </DisabledModes>
        </Adapter>
        <Adapter slot="7" enabled="false" MACAddress="0800273A9314" cable="true" speed="0" type="82540EM">
          <DisabledModes>
            <NAT>
              <DNS pass-domain="true" use-proxy="false" use-host-resolver="false"/>
              <Alias logging="false" proxy-only="false" use-same-ports="false"/>
            </NAT>
          </DisabledModes>
        </Adapter>
      </Network>

Can you help me out? This would be much appreciated!

Regards.

Douwe Pieter

[ome bos]

OK, I removed all adapters from slot 3 till 7. Still not working and VirtualBox sets the XML back to it's original settings. Weird.

VB was not working while I edited it, so it can't be that. Any thoughts?