problems with /dev/console and "job control"

[Christian Ruppert]

On 06/27/2010 12:15 AM, Denys Vlasenko wrote:
> On Saturday 26 June 2010 23:24, Christian Ruppert wrote:
>> On 06/26/2010 11:14 PM, Denys Vlasenko wrote:
>>> On Saturday 26 June 2010 19:22, Christian Ruppert wrote:
>>>> On 06/26/2010 06:35 PM, Denys Vlasenko wrote:
>>>>> On Saturday 26 June 2010 17:02, Christian Ruppert wrote:
>>>>>> On 06/26/2010 04:46 PM, Denys Vlasenko wrote:
>>>>>>> On Saturday 26 June 2010 13:30, Christian Ruppert wrote:
>>>>>>>> Hey guys,
>>>>>>>>
>>>>>>>> I try to setup busybox properly for my initrd although I don't get it
>>>>>>>> working with "job control".
>>>>>>>> I thought that console=... would help (kernel cmdline) but it doesn't.
>>>>>>>>
>>>>>>>> It works so far (at least CTRL+C) if I use openvt -s but that is no
>>>>>>>> solution for me.
>>>>>>>> I use my own /init script which later calls "exec /bin/sh" to enter a
>>>>>>>> rescue shell but CTRL+C etc. isn't working. :(
>>>>>>>
>>>>>>> Does this answer your question?
>>>>>>>
>>>>>>> http://busybox.net/FAQ.html#job_control
>>>>>>
>>>>>> Not really because how can I run the shell in a real console there?
>>>>>> I have no ttySX at all and other console= values doesn't seem to work.
>>>>>
>>>>> So you do not know what is your tty?
>>>> I do.. I'll rephrase it:
>>>> I don't have a serial cable connected or anything else so I can't test
>>>> different console= parameter.
>>>
>>> No one said that you need to.
>>>
>>> http://busybox.net/FAQ.html#job_control says:
>>>
>>> "Your should run your shell on a normal tty such as tty1 or ttyS0 and everything
>>> will work perfectly".
>>>
>>> It does not say "set your console= kernel parameter to tty1 or ttyS0".
>>>
>>> Please try running "sh </dev/tty1 >/dev/tty1 2>/dev/tty1"
>>>
>>
>> Still the same...
>> "sh: can't access tty; job control turned off"
> 
> Ok, now try
> 
> setsid sh -c 'exec sh </dev/tty1 >/dev/tty1 2>/dev/tty1'
>

That works, thanks! :)
One should add it to the FAQ :P

-- 
Regards,
Christian Ruppert

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