Yes. its important if you want to have the internet connection for your Virtualbox. For instance you have used the initial image with minimal and want to use yum later to Upgrade then use the following steps
switch the user to root
run dhclient
Next use yum. if the commands are failing earlier will get passed.
This has killed me several hours of a day to understand and upgrade.
How is dhclient is important while using VirtualBOX
Tags:
upgrade