On Mon, Dec 11, 2000 at 02:54:36AM +0100, Marcus Brinkmann wrote: > Hi, > > plex86 CVS version boots GRUB. This means that you can try to boot gnumach > and eventually the Hurd in plex86. With increasing performance of plex86, > this might be a good alternative to dual boot under some circumstances. > Especially in favor of certain non-free products. > > You can get plex86 from www.plex86.org. Check out the CVS version and follow > the build instructions. To actually boot grub, you can use a grub floppy > disk. A config file comes with plex86 (conf/grub). I had to use a real disk > /dev/hdX to get grub to access the filesystem, a disk image wouldn't work, > but maybe I just didn't know how to do it. > > I tried to boot gnumach, but it dies in fpu_init() when trying to access > fpe_reg_segment. That's a gnumach kernel panic, but should be a bug in > plex86, or a missing feature. I disabled this by replacing #define FPE 1 > in i386/bogus/fpe.h with #undef FPE. Then gnumach came further along, until > somewhere in serverboot I think. Then plex86 crashes really hard. A similar > crash I get with oskit-mach, but a bit earlier I think. >
There might be some issues with the FPU code. As I understand it, as long as the host CPU supports FPU instructions there shouldn't be a problem. Maybe it can even be disabled. That can make it easier for me to work on gnumach's FPU emulation (yes, I still want to make it work right :-). After exams that is... Igor
