When i boot plan9 bootable USB i get following output:
MBR...PBS2...
Plan 9 from Bell Labspirouting: ignoring south bridge PCI.xxxxxx.....
bios (usb) loader
cpu0: xxxxxxxx.........GenuineIntel P6(cpuid: xxxxxx....)
ELCR: xxxxxxxxxxx...........
into bios in real mode...