These commands let you attach and retrieve string data to a virtual
machine or to a VirtualBox configuration (by specifying
global instead of a virtual machine
name). You must specify a key (as a text string) to associate the data
with, which you can later use to retrieve it. For example:
VBoxManage setextradata Fedora5 installdate 2006.01.01 VBoxManage setextradata SUSE10 installdate 2006.02.02
would associate the string "2006.01.01" with the key installdate for the virtual machine Fedora5, and "2006.02.02" on the machine SUSE10. You could retrieve the information as follows:
VBoxManage getextradata Fedora5 installdate
which would return
VirtualBox Command Line Management Interface Version 5.2.4 (C) 2005-2017 Oracle Corporation All rights reserved. Value: 2006.01.01
You could retrieve the information for all keys as follows:
VBoxManage getextradata Fedora5 enumerate
To remove a key, the setextradata
command must be run without specifying data (only the key), for example:
VBoxManage setextradata Fedora5 installdate