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Userspace does not expect that the initial console is a controlling TTY. systemd can deal with that, others not. On sysv init distros getty will fail to spawn a controlling on /dev/console or /dev/tty1. Which will cause to whole container to reboot upon ctrl-c. This patch changes the behavior of libvirt to match the kernel behavior where the initial TTY is also not controlling. The only user visible change should be that a container with bash as PID 1 would complain. But this matches exactly the kernel be behavior with init=/bin/bash. To get a controlling TTY for bash just run "setsid /bin/bash". Signed-off-by: Richard Weinberger <richard@nod.at>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>