* As root:
# vmstat -i

make note of the irqs that have nonzero rates
and are not clk* or rtc*

Issue the command:
# rndcontrol -s n

for 2 or 3 of these irqs where "n" is the irq number

What you are doing here is telling the OS to use these devices to collect randomness from. 

##</code><code>##

 
rand_irqs={some good irq numbers here}