I have some VMs on my Linux machine which run under VirtualBox 6. When I first created the VMs, I accepted the default directory "VirtualBox VMs" in $HOME. After a while this long directory name containing a space irked me and I looked into ways of renaming it. I found lots of old articles that suggested steps like dumping the old VM and then rereading it, or detaching the VM disks and reattaching.
It turns out that in VirtualBox 6 on Linux (and perhaps earlier versions, I cannot say), it's trivial. The configuration information is held in the configuration file $HOME/.config/VirtualBox/VirtualBox.xml With VirtualBox not running, I changed all instances of "VirtualBox VMs" to VMs, and moved the directory of course. Upon starting VirtualBox, everything worked as before.
If you have N VMs there will be N+1 instances of the old directory name in that XML file, one for each VM and one for the base directory of VMs that are created.
It turns out that in VirtualBox 6 on Linux (and perhaps earlier versions, I cannot say), it's trivial. The configuration information is held in the configuration file $HOME/.config/VirtualBox/VirtualBox.xml With VirtualBox not running, I changed all instances of "VirtualBox VMs" to VMs, and moved the directory of course. Upon starting VirtualBox, everything worked as before.
If you have N VMs there will be N+1 instances of the old directory name in that XML file, one for each VM and one for the base directory of VMs that are created.
