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Re: [Qemu-discuss] newbie question: how to connect to a running guest wi

From: Lentes, Bernd
Subject: Re: [Qemu-discuss] newbie question: how to connect to a running guest with qemu monitor
Date: Tue, 5 Jun 2018 17:35:45 +0200 (CEST)

----- On May 31, 2018, at 7:47 AM, Han Han address@hidden wrote:

> virsh qemu-monitor-command is the answer.
> You can use it by following:
> For qmp command:
> # virsh qemu-monitor-command  $VM_NAME $QMP_COMMAND
> For hmp commmand:
> # virsh qemu-monitor-command --hmp $VM_NAME $HMP_COMMAND
> On Thu, May 31, 2018 at 2:28 AM, Jakob Bohm <address@hidden> wrote:


that's it.


virsh # qemu-monitor-command --hmp mausdb2 info block
drive-virtio-disk0 (#block118): /var/lib/libvirt/images/mausdb/mausdb.dd (raw)
    Cache mode:       writethrough, direct

drive-ide0-0-0 (#block371): 
 (raw, read-only)
    Removable device: not locked, tray closed
    Cache mode:       writeback, direct

That's most of what i need. But isn't it possible to connect with the 
qemu-monitor/conscole to the GUI of an already running guest ?
Without vnc which is an extra layer. Do i need to start the guest with special 
options ?

"man qemu-kvm" says:
For instance you could use this to allow a single stdio chardev to be used by 
two serial ports and the QEMU monitor:

                   -chardev stdio,mux=on,id=char0 \
                   -mon chardev=char0,mode=readline \
                   -serial chardev:char0 \
                   -serial chardev:char0

Isn't that what i need ? How do i connect to char0 ?


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