Downloading and installing VirtualBox on my OpenSolaris box was a snap. Running and installing on it was a bit harder. First off, you need qt installed. Easy instructions are at VirtualBox on OpenSolaris. Then you need to tell it that something other than Right-Ctrl is your host key - you need to do this because Sun keyboards do not have that key . I chose my Right-Meta key. Imagine VirtualBox has your mouse and keyboard, your screensaver kicks in, and you can't get the system to understand you want to bring it to life.

Telling the tool how to load my OpenSolaris iso image was a bit counterintuitive. But the biggest problem I ended up having was only giving 8M to my graphics card. The Developer's install seemed okay with that, but the normal graphical install would puke on it. I was able to do a text install, until the point the install decided I was doing a NFS install and did not like the path I was giving. It also would not see the attached iso as a cdrom.

Kicking both tyres together - VirtualBox and Indiana was very helpful for this issue, Alan casually mentions you need 32M of Video Ram. I gave the system that and could then do the graphical install. And it correctly identified the iso as a cdrom. I'll bring that value down once I finish the install. I'm not going to install a GUI on this machine.