[Lxc-users] Need simple configuration for embedded ARM LXC

[Somnath Mitra]

Is there a workaround/resolution to this?

I had filed a bug
http://sourceforge.net/tracker/?func=detail&aid=3610837&group_id=163076&atid=826303


Thanks,
SM.


On Mon, Apr 15, 2013 at 1:08 PM, Daniel Lezcano <daniel.lezcano at free.fr>wrote:

> On 04/15/2013 03:26 AM, Serge Hallyn wrote:
> > Quoting Somnath Mitra (somnath.mitra at xockets.com):
> >> On Fri, Apr 12, 2013 at 6:53 AM, Serge Hallyn <serge.hallyn at ubuntu.com
> >wrote:
> >>
> >>> Quoting Somnath Mitra (somnath.mitra at xockets.com):
> >>>
> >>  > Since the container rootfs is shared with host I am confused why it
> >>> cannot
> >>>> find lxc-init?
> >>> Sounds like a compilation/packaging problem.  It works for me
> >>> here, with ubuntu raring:
> >>>
> >>> cat > lxc.conf << EOF
> >>> cat > lxc.conf << EOF
> >>> lxc.utsname = beta
> >>> lxc.network.type = empty
> >>> lxc.rootfs = /
> >>> lxc.aa_profile = unconfined
> >>> EOF
> >>> lxc.utsname = beta
> >>> lxc.network.type = empty
> >>> lxc.rootfs = /
> >>> lxc.aa_profile = unconfined
> >>> EOF
> >>>
> >>> sudo lxc-execute -n foobar -f lxc.conf -l info -o outout -- ps -ef
> >>> UID        PID  PPID  C STIME TTY          TIME CMD
> >>> root         1     0  0 08:46 pts/1    00:00:00
> >>> /usr/lib/x86_64-linux-gnu/lxc/lxc-init -- ps -ef
> >>> root         2     1  0 08:46 pts/1    00:00:00 ps -ef
> >>>
> >>> (an interactive shell doesn't work - just hangs, I don't use
> >>> lxc-execute so always forget what is expect to work and what
> >>> isn't)
> >>>
> >> Hangs for me too (on the embedded board). Can you comment on possible
> root
> >> cause or workaround so we can investigate. My target application shall
> need
> >> stdin, stdout and, possibly, stderr.
> > Hi Daniel,
> >
> > can you comment on this by chance?  I frankly don't use lxc-execute, and
> > I know you know of all sorts of special circumstances surrounding it...
> > For me,
> >
> >       cat > lxc.conf << EOF
> > lxc.utsname = beta
> > lxc.network.type = empty
> > lxc.rootfs = /
> > lxc.aa_profile = unconfined
> > EOF
> >
> >       lxc-execute -n foobar -f lxc.conf -- ps -ef
> >
> > works fine, while
> >
> >       lxc-execute -n foobar -f lxc.donf -- /bin/sh
> >
> > hangs - some tty session thing?
>
> At the first glance, yes.
>
> Probably a SIGTTIN / SIGTTOU signal received. Something change with the
> pid group/session leader ?
>
> >
> >>>> I have already checked that kernel is configured correctly using
> >>>> lxc-checkconfig.
> >>>>
> >>>> Pls send a pointer to a simple working configuration for embedded
> >>> systems.
> >>>
> >>> Take a look at src/lxc/execute.c:choose_init().  It will look for
> >>> lxc-init in three places:
> >>>
> >>>         LXCINITDIR "/lxc/lxc-init"
> >>>         /usr/lib/lxc/lxc-init
> >>>         /sbin/lxc-init
> >>>
> >>> LXCINITDIR in ubuntu is /usr/lib/x86_64-linux-gnu, and lxc-init is in
> >>> fact at /usr/lib/x86_64-linux-gnu/lxc/lxc-init.  (You can find your
> >>> LXCINITDIR in config.log if you built your own lxc).  But the
> >>> easier thing might be to just copy lxc-init into /sbin.
> >>>
> >> Yes I had put lxc-* binaries in /usr/bin. Putting them in /sbin solved
> it.
> >>
> >> Thanks,
> >> SM.
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.linuxcontainers.org/pipermail/lxc-users/attachments/20130419/adf6b4d3/attachment.html>