[RndTbl] Need help with serial connection

Adam Thompson athompso at athompso.net
Fri May 27 14:28:09 CDT 2011

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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