This page was exported from phaq [ http://phaq.phunsites.net ]

Export date:Fri Aug 17 20:35:04 2018 / +0000 GMT

___________________________________________________


Title: Enabling Serial Console on Sun Ultra 5

---------------------------------------------------


On a Sun Ultra 5 keyboard and screen are used as default input/output devices. This causes the serial port not to be used by default, at least not unless you send a keypress over an attached terminal.

To change this behaviour, two values need to be changed in OpenBoot.

So first we need to enter OpenBoot by sending a Break over the serial line or STOP-A.

Examine the environment values like this and look out for the variables called 'input-device' and 'output-device':

# printenv
Variable Name    Value       Default Value
[output omitted]
output-device      screen      screen
input-device         keyboard  keyboard
[output omitted]

Set them as follows to enable the serial console to be used by default:

#setenv output-device virtual-console
#setenv input-device virtual-console

Next time the machine is powered on, the serial console should come up at once.

---------------------------------------------------


Images: 

---------------------------------------------------




---------------------------------------------------


Post date: 2007-02-16 21:50:46

Post date GMT: 2007-02-16 20:50:46

Post modified date: 2010-12-18 16:57:51

Post modified date GMT: 2010-12-18 15:57:51



____________________________________________________________________________________________


Export of Post and Page as text file has been powered by [ Universal Post Manager ] plugin from www.gconverters.com