I recently bumped into a little problem when trying to import the Puppet OVF virtual machine into my Virtualbox. With all kind of imports of the extracted OVF file, I kept receiving the following error.
Failed to import appliance. Error reading 'filename.ovf': unknown resource type 1 in hardware item, line 95 DETAILS VBOX_E_FILE_ERROR
If you take a look at line 95 of the .ovh file, it will probably look similar to this.
<Item ovf:required="false">
<rasd:AddressOnParent>3</rasd:AddressOnParent>
<rasd:AutomaticAllocation>false</rasd:AutomaticAllocation>
<rasd:Description>Sound Card</rasd:Description>
<rasd:ElementName>sound</rasd:ElementName>
<rasd:InstanceID>9</rasd:InstanceID>
<rasd:ResourceSubType>vmware.soundcard.ensoniq1371</rasd:ResourceSubType>
<rasd:ResourceType>1</rasd:ResourceType>
</Item>
It’s a non-required item, but VirtualBox doesn’t seem to like that. You can simply remove the entire Item alltogether. However, if you import it later on, you’ll receive signing errors such as this.
Failed to import device. The SHA1 digest of 'file.ovf' doesn't match to the one in 'file.mf'.
The .mf file has the sha1-hash of the file, which you’ve just changed. Re-generate the SHA1-digest and edit the .mf file accordingly.
$ sha1sum *.ovf 85a0fa4791cb33d8f5fa96ca55ed9c1cb012161d learn_puppet_centos_pe2.0.1_ovf.2012.02.01.ovf
Now edit the .mf file and change the line where it indicates a SHA1-sum of the current .ovf file and replace it with whatever output you may have gotten from lyour own sha1sum.