[RndTbl] Need help with serial connection

[Adam Thompson]

Usually it's the other way 'round, as the mgmt port is used for remote "lights-out" installs.
You can connect to a virtual console port through the sun mgmt port, so you should never need both.


Kevin McGregor <kevin.a.mcgregor at gmail.com> wrote:

>No frame buffer is present. I just want to manage the machine via serial
>port for now. You can't use the management port until you've installed the
>OS and configured it, is my understanding.
>
>On Fri, May 27, 2011 at 2:28 PM, Adam Thompson <athompso at athompso.net>wrote:
>
>> Not if there's a frame buffer installed.  And that sound like you're in the
>> host serial port, not the management port.  Which do you want to be
>> connected to?
>>
>>
>> Kevin McGregor <kevin.a.mcgregor at gmail.com> wrote:
>>
>> >Do I have the wrong cable? I think it's one of those ones used to attach
>> to
>> >Cisco equipment, 9-pin RS-232 to RJ-45.
>> >
>> >I had it working, briefly, but it stopped again. I think it had booted
>> from
>> >the CD, and was pouring out messages about a buffer overflow plus a
>> >language-selection menu (repeatedly) as fast as 9600 bps would allow. Then
>> I
>> >removed the CD and rebooted and now nothing. With a Sun Fire, shouldn't I
>> be
>> >able to turn the front-panel switch to "Normal" and press the power
>> button?
>> >I did that, and I'm getting nothing on the serial interface. I should be
>> >getting POST messages at least.
>> >
>> >On Fri, May 27, 2011 at 10:43 AM, Adam Thompson <athompso at athompso.net
>> >wrote:
>> >
>> >> Turn off hardware flow control (RTS/CTS or DTS/DSR) and use software
>> flow
>> >> control (XON/XOFF) instead.
>> >> Also, if you don't want to use minicom, (the modem AT initialization is
>> a
>> >> pain to turn off completely) just use screen instead:
>> >> "screen /dev ttys0 9600"
>> >> -Adam
>> >>
>> >>
>> >> Kevin McGregor <kevin.a.mcgregor at gmail.com> wrote:
>> >>
>> >> >This is driving me nuts, since it was working and now it isn't and I
>> have
>> >> no
>> >> >idea what has changed. I hope someone can help.
>> >> >
>> >> >I have a SunFire V490 at work. I also have a HP ProLiant server in the
>> >> same
>> >> >rack, which is running Ubuntu Server 10.04. I've got the weird cyan
>> serial
>> >> >cable plugged in to the lone serial port on the ProLiant and the other
>> end
>> >> >plugged into the V490 port ("SERIAL"). I've got minicom running on the
>> >> Linux
>> >> >box configured for 9600, 8N1 on /dev/ttyS0. minicom's status line
>> reports
>> >> >"OFFLINE", and I get no response to any keyboard input.
>> >> >
>> >> >What's wrong? I can freely power off/on the SunFire and anything else I
>> >> want
>> >> >to do with it. I have the keys for the front panel, too. Do I have to
>> >> switch
>> >> >it to diagnostics mode or something? We had it working before, and it
>> was
>> >> >quite easy.
>> >> >
>> >> >Help!
>> >> >
>> >> >Kevin
>> >> >
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>
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