Missing keyboard at boot time?

[Patel Maqbool]

We are running SUN-OS 3.5 on SUN4/260. Occasionally during bootup the
system gives the message "Keyboard Not Found. Using RS232 Port A" and it
does not recognize the sun keyboard. I tried typing L1-A with no success.
Can somebody explain to me why this happens and what is the remedy.

Thanks in advance.

Patel, Maqbool
Drexel University,
Philadelphia PA 19104

patelms at duvm