I've managed to install plan9. Finally.  It appears I misunderstood the error message (messages actually - plural). The problem was that the hard-drive image I created wasn't big enough. 1GB seems to be enough though. However my troubles aren't over it seems, since as soon as I log in as glenda the screen goes blank or white with a bit of garbage (blank when the mode is 640x480x8, white when the mode is 800x600x16 or 800x600x24)

2010/11/14 Eugene Gorodinsky <e.gorodinsky@gmail.com>
Hi list!
I've been trying to install plan9 today, on a qemu vm. When trying to install from local the installer seems unable to find quite a few files in plan9's src directory. It seems there's some problem with the cdimage. I tried booting from the floppy image, but got stuck at the point where one needs to enter boot media (it seems I need something of the form fd0!file, but I have no idea what file needs to be specified) 

Also, when trying to install in qemu from net, the installer cannot autoconfigure network from dhcp, and doesn't work on manual configuration either (I tried 10.0.2.1 for gateway, 10.0.2.15 for ip and 255.255.255.0 for netmask, which should be the correct qemu settings). The boot prompt indicates that the virtual network card has been found, though. Has anyone tried to do a netinstall of plan9 in qemu?