problems with /dev/console and "job control"

[Denys Vlasenko]

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'

-- 
vda