Thanks, both. I use VB because it works well for what I need it for (running Linux on Win and Mac) and for me it works better than qemu in that respect. I'd rather stick to one virtualisation solution if possible. I've narrowed the problem down to the emulated ethernet card - the Intel MT PRO/1000 Server was the only card that worked with Plan9 and now it does not. So if anyone has any advice on how to debug this I'd be grateful. Ironically 9front is the only variant that does work, because it has a driver for virtio-net. Well done cinap and thank you. Pete On Thu, 28 Jul 2016 at 08:16 Matthew Veety wrote: > I run 9front in virtualbox, and, while I totally agree that its a > waste of time to test it because they *always* break something in > vbox, you're pretty safe if you stay on the 4.3 series and 5.0 series > (on my end: 4.3 on freebsd is tested and 5.0 on windows is tested). I > know you don't get the latest and greatest features, but it works and > you can get your work done which is more important than features. > If you want to try fixing things, I'm sure the patches would be > accepted, but I don't think you should unless you have *very* good > reasons to because of how terrible virtualbox is. > > -- > Veety > >