On 03.10.2015 00:07, poma wrote:

Hi Fi,

cmdline: console=hvc0 systemd.wants=getty@hvc0

Connect via virt-manager - View / Text Consoles / Text Console no.:

Fedora 24 (Rawhide) Kernel 4.3.0-0.rc3.git2.4.fc24.x86_64 on an x86_64 (hvc0)

localhost login: root Last login: Fri Oct 2 17:28:36 on hvc0 # tty /dev/hvc0 # systemctl status getty@hvc0.service ● getty@hvc0.service - Getty on hvc0 Loaded: loaded (/usr/lib/systemd/system/getty@.service; enabled; vendor preset: enabled) Active: active (running) since Fri 2015-10-02 17:28:39 EDT; 26s ago Docs: man:agetty(8) man:systemd-getty-generator(8) http://0pointer.de/blog/projects/serial-console.html Main PID: 2034 (login) CGroup: /system.slice/system-getty.slice/getty@hvc0.service ‣ 2034 login -- root

Oct 02 17:28:39 localhost systemd[1]: Started Getty on hvc0.

It obviously works.

Connect via virsh:

# virsh console <domain> console1 Connected to domain <domain> Escape character is ^] error: operation failed: Active console session exists for this domain

# virsh console --devname console1 <domain> Connected to domain <domain> Escape character is ^] error: operation failed: Active console session exists for this domain

Obviously does not work.

Is it possible to connect hvc via virsh, if domain/guest is started with the virt-manager? Is it possible at all, to connect hypervisor virtual console via virsh?

The answer is, of course! Connect via virt-manager - View / Text Consoles / Text Console 1: Fedora 24 (Rawhide) Kernel 4.3.0-0.rc3.git2.4.fc24.x86_64 on an x86_64 (hvc0) localhost login: root # tty /dev/hvc0 # cat /proc/cmdline BOOT_IMAGE=vmlinuz0 initrd=initrd0.img root=live:CDLABEL=Rawhide-Xfce-Live-1001 rootfstype=auto ro rd.live.image console=hvc0 systemd.wants=getty@hvc0 console=hvc1 systemd.wants=getty@hvc1 Connect via virsh to "Text Console 2": # virsh console <domain> console0 Connected to domain <domain> Escape character is ^] error: operation failed: Active console session exists for this domain - This console is obviously busy! # virsh console <domain> console1 Connected to domain <domain> Escape character is ^] Fedora 24 (Rawhide) Kernel 4.3.0-0.rc3.git2.4.fc24.x86_64 on an x86_64 (hvc1) localhost login: root Last login: Fri Oct 2 18:41:46 on hvc0 # tty /dev/hvc1 Conclusion: It is necessary to shutdown domain/guest and disconnect from hypervisor, after the connection established via virt-manager, to free up a slot for next connection, via virsh. And vice versa. Even better is if defined more "Text Consoles" i.e. hypervisor virtual consoles, as shown here.