Bela runs the same kernel as the gateway machine plan9, the
only configuration difference is the sound setup.
3rd Ed. Sound setup
sp700 contains an unsupported ess16xx sound card, as well as the
ISA soundblaster 16. This requires
2 audio entries in plan9.ini
the first for the unsupported card, and the second for the
working ISA soundblaster card. To use the card just bind
the device into /dev
bind '#A1' /dev
Also notice in the plan9.ini that this machine can also be booted
as a terminal.
4th Ed. Sound setup
We were unable to make sound work on bela under the 4th Ed. because of
conficts with the onboard sound card. Instead we setup another cpuserver
Bela has recently been upgraded to a Geforce2 MX video card.
The nvidia driver and install instructions are available from
To support the Geforce2 card requires adding a line to vgadb,
for our card this line is:
0xC00CB="NVIDIA GeForce2 MX"
To run at depths > 8 requires removing the check on depth
(or using the updated version from
and changing the depth in
4th Ed. video setup
with the 4th Ed. this card is supported out of the box.
4th Ed. Tv tuner setup
Note: decjunk was a 3rd Ed. machine that was not upgraded to
the 4th Ed.
The alpha version of plan9 will not boot if a keyboard is not
plugged it. We are working on a fix for this.
The only network card we had that was suported by the SRM
firmware was a DEC DE500, however this card is not
detected correctly by the plan9 driver. So we use the
DE500 to bootp the machine and then
a Kingston tulip card for the normal network connection.
We also had troubles with the sd53x8xx driver hanging the
boot process, so we removed it from apccpu.
Useful debug info from David Gordon Hogan.
Last Modified: May 27 2002