Thank you very much for the detailed help! Your setup worked flawlessly. Best regards, Bogdan P.
> -----Original Message----- > From: Daniel P. Berrange [mailto:berra...@redhat.com] > Sent: Thursday, March 14, 2013 2:31 PM > To: Purcareata Bogdan-B43198 > Cc: libvirt-l...@redhat.com > Subject: Re: [libvirt] Libvirt + LXC terminals > > On Thu, Mar 14, 2013 at 11:10:31AM +0000, Purcareata Bogdan-B43198 wrote: > > Hello all, > > > > I am looking for a way to start a container with libvirt and bind > > multiple consoles to it. My container is running busybox, the filesystem > > created using the LXC package (0.8.0). My libvirt version is 0.10.1. > > > > Configuration of the filesystem: > > - in the container rootfs, /dev contains 2 devices - /dev/console and > > /dev/tty1 > > Ok, there's no need to put anything in /dev. Libvirt will mount a > tmpfs on /dev and a devpts on /dev/pts create all the devices nodes > itself. > > > - the inittab file looks like this: > > ::sysinit:/etc/init.d/rcS > > tty1::respawn:/bin/getty -L tty1 115200 vt100 > > console::askfirst:/bin/sh > > - it will link the /bin/sh process to /dev/console and the /bin/getty > > process to /dev/tty > > - when starting the container with lxc-start, each of these processes gets > > his own local /dev/pts > device: > > I'm not sure how sf.net LXC tools setup consoles, but what you have won't > work with Libvirt LXC. The primary console is setup as /dev/console and > /dev/tty1, so your inittab here is putting both processes on the same > console device. The second console is /dev/tty2 with libvirt. > > > I've found some documentation at [1], hence my trials in the presented > > .xml. Is my scenario possible > / supported? > > Here is the XML I have just used to test the scenario you want: > > <domain type='lxc'> > <name>busyinit</name> > <uuid>dda7b948-0846-1759-2873-0f375df7d7eb</uuid> > <memory unit='KiB'>32768</memory> > <currentMemory unit='KiB'>32768</currentMemory> > <vcpu placement='static'>1</vcpu> > <os> > <type arch='x86_64'>exe</type> > <init>/init</init> > </os> > <clock offset='utc'/> > <on_poweroff>destroy</on_poweroff> > <on_reboot>restart</on_reboot> > <on_crash>destroy</on_crash> > <devices> > <emulator>/usr/libexec/libvirt_lxc</emulator> > <filesystem type='mount' accessmode='passthrough'> > <source dir='/root/containers/root-busybox'/> > <target dir='/'/> > </filesystem> > <console type='pty'> > <target type='serial' port='0'/> > </console> > <console type='pty'> > <target type='serial' port='1'/> > </console> > <console type='pty'> > <target type='serial' port='2'/> > </console> > <console type='pty'> > <target type='serial' port='3'/> > </console> > </devices> > <seclabel type='static' model='selinux' relabel='no'> > <label>system_u:system_r:svirt_t:s0:c724,c995</label> > </seclabel> > </domain> > > > And I have this inittab > > # cat /root/containers/root-busybox/etc/inittab > ::sysinit:/etc/init.d/rcS > tty1::askfirst:/bin/sh > tty2::respawn:/bin/getty -L tty2 115200 vt100 > tty3::respawn:/bin/getty -L tty3 115200 vt100 > tty4::respawn:/bin/getty -L tty4 115200 vt100 > > > Now if you start this 'virsh -c lxc:/// start busyinit' > > Then > > # virsh -c lxc:/// console busyinit > Connected to domain busyinit > Escape character is ^] > > Please press Enter to activate this console. > /bin/sh: can't access tty; job control turned off > # ... > > > will connect you to the first console, which is tty1 and your /bin/sh > > To connect to the 2nd, 3rd, etc consoles you can use > > # virsh -c lxc:/// console --devname console1 busyinit > Connected to domain busyinit > Escape character is ^] > > t500wlan.home.berrange.com login: > > > Use 'virsh -c lxc:/// dumpxml busyinit' to see what console device > names libvirt gave to each - for LXC they'll be named 'console0', > 'console1', 'console2', etc. NB the tty paths in the XML are the > host side TTY names, which are different from the guest side names. > > Regards, > Daniel > -- > |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| > |: http://libvirt.org -o- http://virt-manager.org :| > |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| > |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
