From: Geoff Thorpe <Geoff.Thorpe@freescale•com>
To: linuxppc-embedded@ozlabs•org
Subject: Re: Problems starting /init
Date: Wed, 4 Jan 2006 18:20:10 -0500 [thread overview]
Message-ID: <200601041820.10133.Geoff.Thorpe@freescale.com> (raw)
In-Reply-To: <43BC542F.5040302@comcast.net>
On January 4, 2006 06:03 pm, David H. Lynch Jr. wrote:
[snip]
> starting a c "Hello World" application that uses glibc, fputs,
> printf, fwrite, to display a string - again works fine.
>
> But I can not get busybox to output a thing either run as /init or
> run as /bin/sh.
busybox tries to open the console device and does fairly extensive
surgery with the stdio descriptors. So your apps that assume fds
0,1,2 to be stdin/stdout/stderr are functioning fine, but busybox is
probably choking because it's opening/configuring the console
devices. I've worked through this with someone before when we wanted
busybox to just run with the existing fds - we eventually beat it
into submission but then ended up changing/replacing the console
driver instead and going back to vanilla busybox. If you take a look
through the busybox source, you should find the various
fork/dup/ctrl/exit gymnastics and with a little patience, you might
be able to hack around it. But it might be easier in the long run to
figure out where the opening/manipulation of /dev/console (or
whatever it's opening) is going wrong.
Sorry I can't help you further. Good luck.
Cheers,
Geoff
--
Geoff Thorpe
Freescale Semiconductor
next prev parent reply other threads:[~2006-01-04 23:20 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-08 15:19 Need help for Linux hangs jimmy liu
2005-12-08 16:05 ` Vitaly Bordug
2005-12-08 23:21 ` Wolfgang Denk
2005-12-08 23:19 ` Wolfgang Denk
2006-01-04 7:05 ` Problems starting /init David H. Lynch Jr.
[not found] ` <6AD9F6A5F6E096408F0B703773355A070E705B@CHN-SNR-MBX01.wipro.com>
2006-01-15 9:13 ` Problems starting /sbin/init David H. Lynch Jr.
2006-01-04 23:03 ` Problems starting /init David H. Lynch Jr.
2006-01-04 23:20 ` Geoff Thorpe [this message]
2006-01-04 23:19 ` RESEND:Problems " David H. Lynch Jr.
2006-01-09 18:45 ` Shawn Jin
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