Ygtjki

I created a Debian virtual machine with LVM encryption in virt-manager.

When I start the VM from virt-manager, I am asked to provide password for the LVM encryption.
But now when I start the VM and access it from virsh, why does it hang?

$ virsh start debian9.8
Domain debian9.8 started

$ virsh console debian9.8
Connected to domain debian9.8
Escape character is ^]

Is it correct that I should reconfigure it

• to remove virtual graphics card from the VM , and


• to have the console on serial

so that I can access that console from a terminal emulator on the host? How?

In the vm's xml file, do I have to change

 <graphics type='spice' autoport='yes'>
 <listen type='address'/>
 <image compression='off'/>
 </graphics>

and

 <serial type='pty'>
 <target type='isa-serial' port='0'>
 <model name='isa-serial'/>
 </target>
 </serial>
 <console type='pty'>
 <target type='serial' port='0'/>
 </console>

?

I didn't edit the xml file directly, but removed the Graphics in virt-manager. Now I still can't connect to the VM:

$ virsh console debian9.8 
Connected to domain debian9.8
Escape character is ^]
error: operation failed: Active console session exists for this domain

What shall I do?
Thanks.

/etc/libvirt/qemu/debian9.8.xml:

<!--
WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
OVERWRITTEN AND LOST. Changes to this xml configuration should be made using:
 virsh edit debian9.8
or other application using the libvirt API.
-->

<domain type='kvm'>
 <name>debian9.8</name>
 <uuid>45462948-154e-454b-baea-ea78603cda0c</uuid>
 <memory unit='KiB'>1048576</memory>
 <currentMemory unit='KiB'>1048576</currentMemory>
 <vcpu placement='static'>1</vcpu>
 <os>
 <type arch='x86_64' machine='pc-i440fx-bionic'>hvm</type>
 <boot dev='hd'/>
 </os>
 <features>
 <acpi/>
 <apic/>
 <vmport state='off'/>
 </features>
 <cpu mode='custom' match='exact' check='partial'>
 <model fallback='allow'>Opteron_G3</model>
 </cpu>
 <clock offset='utc'>
 <timer name='rtc' tickpolicy='catchup'/>
 <timer name='pit' tickpolicy='delay'/>
 <timer name='hpet' present='no'/>
 </clock>
 <on_poweroff>destroy</on_poweroff>
 <on_reboot>restart</on_reboot>
 <on_crash>destroy</on_crash>
 <pm>
 <suspend-to-mem enabled='no'/>
 <suspend-to-disk enabled='no'/>
 </pm>
 <devices>
 <emulator>/usr/bin/kvm-spice</emulator>
 <disk type='file' device='disk'>
 <driver name='qemu' type='qcow2'/>
 <source file='/home/t/VirtualMachines/debian9.8.qcow2'/>
 <target dev='hda' bus='ide'/>
 <address type='drive' controller='0' bus='0' target='0' unit='0'/>
 </disk>
 <controller type='usb' index='0' model='ich9-ehci1'>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x7'/>
 </controller>
 <controller type='usb' index='0' model='ich9-uhci1'>
 <master startport='0'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0' multifunction='on'/>
 </controller>
 <controller type='usb' index='0' model='ich9-uhci2'>
 <master startport='2'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x1'/>
 </controller>
 <controller type='usb' index='0' model='ich9-uhci3'>
 <master startport='4'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x2'/>
 </controller>
 <controller type='pci' index='0' model='pci-root'/>
 <controller type='ide' index='0'>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
 </controller>
 <controller type='virtio-serial' index='0'>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
 </controller>
 <interface type='network'>
 <mac address='52:54:00:23:08:56'/>
 <source network='default'/>
 <model type='rtl8139'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
 </interface>
 <serial type='pty'>
 <target type='isa-serial' port='0'>
 <model name='isa-serial'/>
 </target>
 </serial>
 <console type='pty'>
 <target type='serial' port='0'/>
 </console>
 <channel type='spicevmc'>
 <target type='virtio' name='com.redhat.spice.0'/>
 <address type='virtio-serial' controller='0' bus='0' port='1'/>
 </channel>
 <input type='mouse' bus='ps2'/>
 <input type='keyboard' bus='ps2'/>
 <input type='tablet' bus='usb'>
 <address type='usb' bus='0' port='3'/>
 </input>
 <graphics type='spice' autoport='yes'>
 <listen type='address'/>
 <image compression='off'/>
 </graphics>
 <sound model='ich6'>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
 </sound>
 <video>
 <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
 </video>
 <redirdev bus='usb' type='spicevmc'>
 <address type='usb' bus='0' port='1'/>
 </redirdev>
 <redirdev bus='usb' type='spicevmc'>
 <address type='usb' bus='0' port='2'/>
 </redirdev>
 <memballoon model='virtio'>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
 </memballoon>
 </devices>
</domain>