Re: kern/147082: [uart] Serial ports unusable


On Wed, May 26, 2010 at 6:42 PM, Mayo Jordanov <mayo@oyam.ca> wrote:
>
> On 2010-05-26, at 12:42 , remko@FreeBSD.org wrote:
>
>> Synopsis: [uart] Serial ports unusable
>>
>> State-Changed-From-To: open->feedback
>> State-Changed-By: remko
>> State-Changed-When: Wed May 26 19:42:36 UTC 2010
>> State-Changed-Why:
>> I send my working serial line to Mayo, set status to feedback
>>
>> http://www.freebsd.org/cgi/query-pr.cgi?pr=3D147082
>
> I'm gona re-reply here, to preserve the history.
>
>>>> How-To-Repeat:
>>> 1) Edit /etc/ttys, do the ttyu0 line reads:
>>> ttyu0 =A0 =A0 =A0 =A0"/usr/libexec/getty std.9600" =A0 vt100 =A0 on sec=
ure
>>> 2) kill -HUP 1
>>> 3) Try connecting to it with terminal application
>>
>>
>> /etc/ttys
>> console =A0 =A0"/usr/libexec/getty Pc" =A0 =A0 =A0 =A0 cons25 =A0on =A0s=
ecure
>>
>> /boot/loader.conf
>> console=3D"comconsole"
>>
>> That enabled serial access to my Soekris device running on FreeBSD8(PFse=
nse), it also works for several remote machines I have.
>>
>> Can you confirm that you have these settings in loader.conf and rebooted=
?!
>>
>> --
>> /"\ =A0 Best regards, =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| r=
emko@FreeBSD.org
>> \ / =A0 Remko Lodder =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0| remko@=
EFnet
>> X =A0 =A0http://www.evilcoder.org/ =A0 =A0|
>> / \ =A0 ASCII Ribbon Campaign =A0 =A0| Against HTML Mail and News
>
> test# cat /boot/loader.conf
> console=3D"comconsole"
>
> looking at the /etc/ttys entry you pasted above, will that enable serial =
console? That looks like a regular console on the machine itself.
>
> I have rebooted numerous times, and I do get the kernel messages during b=
oot on serial up to the point where getty starts (presumably... I see porti=
on of the messages as nics are getting setup and then nothing).
>
> I have some machines where serial works fine, but I have some machines wh=
ere it doesn't and behaves the same way as described above. If necessary, I=
 can provide access to a troublesome machine.

    All of this is described in more grusome detail at
http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/serialconsole-set=
up.html
..
HTH,
-Garrett
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