You have to set up console logging yourself on a cpu server, like this:
aux/clog /mnt/consoles/fileserver /sys/log/fileserver &
where "fileserver" is the name of your file server. This assumes
you've already got consolefs(4) configured, running and mounted, and
that you've got the file server's serial console configured and wired
up to a serial port on the cpu server doing the logging. Add this to
your file server's plan9.ini:
console=0 baud=9600
It's a bit of work to set up, but very handy. Not only do you get a
console log, but you can access the console from any of your Plan 9
machines with:
C fileserver