I'll try to find the way to install X11 compatibility libraries for debian 64 bit systems.
a) When I typed fshalt I got an error that I don't have permissions to
call /bin/echo. It seems like echo from the host system was called
instead of echo from 9legacy. Is this a bug or did I forget something ?
I'm not sure what is your issue here. Anyway, you don't need to
run fshalt on 9vx, because there is usually no file system running.
I wasn't sure why echo from the host was called out of the guest and if I have forgotten something to initialize.