RAMDISK IMAGES(2): ash has no job control ??? ... can't access tt y; job control turned off

RAMDISK IMAGES(2): ash has no job control ??? ... can't access tt y; job control turned off

[James Don]

Hi,

I am looking at a ramdisk image ... I am curious if anyone could give me a
tip as to why when my bash starts I have no "job contol" (ctrl-z etc) ... se
below ...

BusyBox v0.60.5 (2003.01.09-00:51+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.
sh: can't access tty; job control turned off

As always thanks,

Jim

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Re: RAMDISK IMAGES(2): ash has no job control ??? ... can't access tt y; job control turned off

[Der Herr Hofrat]

>
> Hi,
>
> I am looking at a ramdisk image ... I am curious if anyone could give me a
> tip as to why when my bash starts I have no "job contol" (ctrl-z etc) ... se
> below ...
>
> BusyBox v0.60.5 (2003.01.09-00:51+0000) Built-in shell (ash)

busybox builtin shell has no job control by default - for ash you have to
enable it at compile time.

hofrat

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Re: RAMDISK IMAGES(2): ash has no job control ??? ... can't access tt y; job control turned off

[Eugene Surovegin]

James,

At 11:19 AM 1/12/2003, you wrote:
>I am looking at a ramdisk image ... I am curious if anyone could give me a
>tip as to why when my bash starts I have no "job contol" (ctrl-z etc) ... se
>below ...
>
>BusyBox v0.60.5 (2003.01.09-00:51+0000) Built-in shell (ash)
>Enter 'help' for a list of built-in commands.
>sh: can't access tty; job control turned off


Look at inittab for busybox.

There should be the line which starts shell on system console:

::askfirst:-/bin/sh

Change it to somethinbg like:

ttyS0::askfirst:-/bin/sh

where the first name is the name of your console device, in this case I
have console on serial port


  Eugene Surovegin <mailto:ebs@innocent.com>


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Re: RAMDISK IMAGES(2): ash has no job control ??? ... can't access tt y; job control turned off

[Eugene Surovegin]

At 11:24 AM 1/12/2003, you wrote:
> > I am looking at a ramdisk image ... I am curious if anyone could give me a
> > tip as to why when my bash starts I have no "job contol" (ctrl-z etc)
> ... se
> > below ...
> >
> > BusyBox v0.60.5 (2003.01.09-00:51+0000) Built-in shell (ash)
>
>busybox builtin shell has no job control by default - for ash you have to
>enable it at compile time.

If ash has been built _without_ job control support it will _never_
complain about it,
especially it will never print out that "job control turned off".

If you look at the source code of ash in busybox, you'll see that this
particular message means that shell cannot access controlling tty.


  Eugene Surovegin <mailto:ebs@innocent.com>


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Re: RAMDISK IMAGES(2): ash has no job control ??? ... can't access tt y; job control turned off

[Wolfgang Denk]

In message <5.1.0.14.2.20030112121009.02d9da10@pop.prodigy.net> you wrote:
>
> If ash has been built _without_ job control support it will _never_
> complain about it,
> especially it will never print out that "job control turned off".

Absolutely correct.

> If you look at the source code of ash in busybox, you'll see that this
> particular message means that shell cannot access controlling tty.

...which is probably Jim's main problem.


Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
Man is the best computer we can put aboard a spacecraft ...  and  the
only one that can be mass produced with unskilled labor.
                                                 -- Wernher von Braun

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