virtualbox.org

Linux host - running this to a windows 7 VM. Tried with VM running and switched off, still returns value of 0.

VBoxManage setextradata "/home/VirtualBox VMs/7vm/7vm.vbox" VBoxInternal/Devices/pcbios/0/Config/DmiSystemSerial $(hostname -s)-win7vm

Then I run this on my host.

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echo $?

Returns "0"

Running this on the Windows VM.

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wmic bios get serialnumber

Returns "0" as well.

Anyone have an idea as to why this is failing?

I don't know what you expected "echo $" to do. Setextradata makes changes to your VMs xml settings file, in this case it would have set the selected key to "$(hostname" I would think. I can't comment on "wmic" - it isnt a VirtualBox tool, nor am I familiar with it. In previous discussions people have used DmiDecode.

virtualbox.org

VBoxManage DmiSystemSerial not working.

VBoxManage DmiSystemSerial not working.

Re: VBoxManage DmiSystemSerial not working.