First to open in the bios Intel-vt, KVM code is incorporated into the Kernel, so installation is relatively simple.
michael@homeserver:~$ sudo apt update michael@homeserver:~$ sudo apt install qemu qemu-kvm libvirt-bin bridge-utils virt-manager michael@homeserver:~$ service libvirtd start michael@homeserver:~$ update-rc.d libvirtd enable
Configuring Bridge is the difficulty of default is NAT, so it is hard to access the resources of the machine, Ubuntu desktop using NetworkManager, I feel it is not particularly easy to use, uninstalled NetworkMananger want in exchange for the original system-networkd eventually lead to very complex , the net Rom. The system also nothing, in order to save time. Reinstall the system using Netplan configuration.
michael@homeserver:~$ cat /etc/netplan/01-network-manager-all.yaml
# Let NetworkManager manage all devices on this system
network:
version: 2
renderer: NetworkManager
ethernets:
eno1:
dhcp4: no
dhcp6: no
bridges:
br0:
interfaces: [eno1]
dhcp4: no
addresses: [192.168.200.5/24]
gateway4: 192.168.200.1
nameservers:
addresses: [192.168.1.1,192.168.200.1]
michael@homeserver:~$ sudo netplan --debug apply
I do not know why, restart the service is not what I finally restart the machine.
michael@homeserver:~$ ifconfig
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.200.5 netmask 255.255.255.0 broadcast 192.168.200.255
inet6 fe80::c4e1:3dff:fe5a:3b4 prefixlen 64 scopeid 0x20<link>
ether 34:e6:d7:43:f6:e9 txqueuelen 1000 (Ethernet)
RX packets 2767094 bytes 912150605 (912.1 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 860281 bytes 6305749082 (6.3 GB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 34:e6:d7:43:f6:e9 txqueuelen 1000 (Ethernet)
RX packets 3696177 bytes 1556421623 (1.5 GB)
RX errors 0 dropped 38 overruns 0 frame 0
TX packets 5155253 bytes 6569117858 (6.5 GB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 20 memory 0xf7200000-f7220000
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 722801 bytes 6280259738 (6.2 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 722801 bytes 6280259738 (6.2 GB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:79:1b:f0 txqueuelen 1000 (Ethernet)
RX packets 583 bytes 89412 (89.4 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 352 bytes 313486 (313.4 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
vnet0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet6 fe80::fc54:ff:fe50:92eb prefixlen 64 scopeid 0x20<link>
ether fe:54:00:50:92:eb txqueuelen 1000 (Ethernet)
RX packets 161600 bytes 14098109 (14.0 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 272378 bytes 319406090 (319.4 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
michael@homeserver:~$ brctl show
bridge name bridge id STP enabled interfaces
br0 8000.34e6d743f6e9 yes eno1
vnet0
virbr0 8000.525400791bf0 yes virbr0-nic
When installing Windows 10, and found that there are two mouse, and very difficult to control. Someone made a start time to join, -usb -usbdevice tablet. KVM is not too much to understand, so they looked, a foreigner gave a solution, a final solution.
The equivalent for that is to open up the virtual machine details > Add Hardware > Input > EvTouch USB Graphics Tablet
homeoffice environmental objectives are as follows:
Reference:
https://www.linuxtechi.com/install-configure-kvm-ubuntu-18-04-server/
https://www.linuxquestions.org/questions/slackware-14/mouse-cursor-in-kvm-guest-4175575243/