News: No Ubuntu 12.10 Guests in VirtualBox 4.2.2
An interesting development; I had Ubuntu 12.10 Quantal Quetzal working quite happily all the way through the Alpha and Beta releases in Oracle VirtualBox 4.1 and 4.2.
I use the Oracle version rather than the one in the Ubuntu repos not because I love Oracle (I don't) but because it is updated more frequently and has USB support built in (the repo version lacks this).
However with the official release of 12.10, I get an interesting result. My 12.10 guest boots into LightDM, I can log in, then I get a lovely blank desktop. No Unity -no top panel, no launcher. No alt-f2, no terminals. Nada.
Session information states that VTX and nested paging are disabled (no they're not). I have no graphics acceleration (it's enabled). If I'm lucky, Compiz tries to start but then crashes. If not, it just fails with no notification. 12.10 is broken as a guest.
From what I've gleaned form the VirtualBox forums and a referenced support ticket, this is a known and being worked on.
The upshot is if you're trying to use Ubuntu 12.10 as a guest in Oracle VirtualBox 4.2.2; it doesn't work.
Holding my breath... RC