Virtualbox 4.1.24 works well for me.
On Feb 24, 2013, at 12:48 PM, Rikard Lang <rikard.l...@gmail.com> wrote: > My first post to 9fans; Hi! > > I am currently running 9Front on real hardware (mini-itx board with an Atom > CPU), I also run 9Front using Virtualbox. I have had issues getting regular > Plan 9 to install using Virtualbox. I know it wasn't a problem in the past. > Anyway, as I was walking through some sites related to this I found this post: > > "I had a look at Plan 9 and I can only say that their idea of real mode is > miles away from Intel's. Plan 9 crashes because it calls BIOS with an > environment that only vaguely resembles real mode in that CR0.PE is 0, but > segment limits and attributes are totally all over the place. For example > they leave the 'B' bit for the stack segment set, which causes rather > interesting behavior of instructions that manipulate the stack. That then > triggers an extremely obscure bug in VirtualBox which probably affects no > other OS on the planet. > > The Plan 9 folks should probably re-read chapter 9.9.2 (Switching Back to > Real-Address Mode) of the Intel 64/IA-32 SDM (Volume 3) and implement their > mode switching code the way Intel says they should. This is their code in > sys/src/9/pcboot/realmode0.s." > > The post is located at: > https://forums.virtualbox.org/viewtopic.php?f=4&t=52431 > > It was one of very few posts that contained any technical information > whatsoever. Most posts I come across just say that the installation hangs. I > do not know if the above is of any help or even useful in any way, but I > thought I'd post it here, since it might help. > > -- > Rikard Lang > > >
