Re: [leaf-user] Re: Bering uClibc on a serial console

[Eric S. <E.S...@in...>]

Hello Ricardo,

You can use the following "trick" if you have a linux PC:
rename etc.lrp to etc.tar.gz
unpack etc.tar.gz to a temp directory
edit etc/inittab
repack by doing "tar -c * | gzip -9 >etc.lrp" from within the temp directory.

Eric


> Thanks Eric,
>
>
> So I guess my next question is... how do I edit inittab, if it is in an
> lrp? I have a chicken-and-egg situation
>
>
> What I mean is, if I can't even login to the box (since the getty is not
> enabled) how do I alter inittab.
>
> Is there an lrp available that already has the ttyS0 getty enabled? Is it
>  the etc.lrp that needs to be modified?
>
> Ricardo
>
>
> ----- Original Message -----
> From: "Eric Spakman" <E.S...@in...>
> To: "Charles Steinkuehler" <ch...@st...>
> Cc: "Ricardo Kleemann" <ri...@am...>;
> <ka...@us...>; <lea...@li...>
> Sent: Tuesday, February 28, 2006 6:41 AM
> Subject: Re: [leaf-user] Re: Bering uClibc on a serial console
>
>
>
>> Hello Ricardo,
>>
>>
>> Every Bering-uClibc kernel have serial support compiled in, but you
>> have to make sure you enable a getty on /dev/ttyS0 in /etc/inittab.
>>
>> In other words uncomment:
>> T0:23:respawn:/sbin/getty -L ttyS0 19200 vt100
>>
>>
>> You can comment the following lines:
>> #1:2345:respawn:/sbin/getty 38400 tty1
>> #2:23:respawn:/sbin/getty 38400 tty2
>>
>>
>> Eric
>>
>>
>>>
>>> Ricardo Kleemann wrote:
>>>
>>>
>>>> Hi,
>>>>
>>>>
>>>>
>>>> I'm trying to install Bering uClibc on a net4501. It boots up but
>>>> the problem I'm having is that it is not opening up a serial console
>>>>  connection. It attempts to open up /dev/tty1 and /dev/tty2, which
>>>> fail (as expected),
>>>> but it won't open up /dev/ttyS0
>>>>
>>>> I have another net4501 working with an older version of Bering, but
>>>>  this one isn't working for some reason.
>>>>
>>>> I have added this in my syslinux.cfg:
>>>>
>>>>
>>>>
>>>> append console=ttyS0,19200 nodma=hda ide=nodma
>>>>
>>>> (which is what I have in my other net4501 system)
>>>>
>>>>
>>>>
>>>> But still, it doesn't open up ttyS0.
>>>>
>>>>
>>>>
>>>> Do you know what could be wrong, or can you point me to someone
>>>> that might be able to help me out?
>>>
>>> Please direct requests for support to the leaf-user mailing list.
>>>
>>>
>>>
>>> For the comsole=ttyS0 kernel command line to work properly, you have
>>> to have serial support compiled into the kernel.  Make sure the kernel
>>> you
> are
>>> using has serial support compiled in, not compiled as a module.
>>>
>>> I'm not familiar enough with the Bering kernels to know which (if
>>> any) have serial support compiled in.
>>>
>>> - --
>>> Charles Steinkuehler
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>>
>>
>>
>
>