Always revert to snapshot on close?

[tramonjr]

Hi,
I am about to deploy VirtualBox in a university computer lab. Host OS is Windows XP, the guest OS is OpenSUSE.
Ideally I want to lock the guest OS so that when a student is done with it and they log off, the next student can use the guest OS in a pristine state.
Is there a way to set the guest OS to always revert to a snapshot when closed? Something like DeepFreeze?

[Perryg]

You can convert the HDD to immutable and once shutdown it will not save the state. However I do not know if this would work using snapshots. I have never tried it with snapshots.
See VBoxManage modifyhd in the VirtualBox users guide.

[tramonjr]

Thanks. Yes, that is what I am trying to do: convert the disk to immutable. Do you know where there are decent how-to's on this process?

[Perryg]

Nothing other then the VirtualBox Users Guide that is included with the program.
See specifically 5.4. Special image write modes
You may find some tutorials on the internet though. I have not searched.
Just put convert normal to immutable in VirtualBox in Google