Creating, running, and destroying a Ubuntu 16.04 minimal cloud image KVM under Linux Mint 18.3

kvm-with-ubuntu-cloud-image.log

... in steps below:

$ sudo apt install qemu-kvm libvirt-bin virtinst bridge-utils cloud-image-utils
$ wget http://cloud-images.ubuntu.com/minimal/releases/xenial/release/ubuntu-16.04-minimal-cloudimg-amd64-disk1.img
$ qemu-img convert -O qcow2 ubuntu-16.04-minimal-cloudimg-amd64-disk1.img ubuntu-16.04-minimal-cloudimg-amd64-disk1.qcow2
$ qemu-img resize ubuntu-16.04-minimal-cloudimg-amd64-disk1.qcow2 +8G
$ qemu-img create -f qcow2 -b ubuntu-16.04-minimal-cloudimg-amd64-disk1.qcow2 ubuntu-16.04-amd64.img
$ cat config

#cloud-config
password: qaz
chpasswd: { expire: False }
ssh_pwauth: True

$ cloud-localds config.img config
$ cat ./virt-install.sh

virt-install --connect=qemu:///system
--name ubuntu-16.04-amd64
--ram 2048
--vcpus=2
--os-type=linux
--os-variant=ubuntu16.04
--disk ubuntu-16.04-amd64.img,device=disk,bus=virtio
--disk config.img,device=cdrom
--graphics none
--import

$ sudo virsh change-media ubuntu-16.04-amd64 hda --eject --config
$ sudo virsh -c qemu:///system list --all
$ sudo virsh net-autostart default
$ sudo virsh net-start default
$ sudo ./virt-install.sh
$ sudo virsh shutdown ubuntu-16.04-amd64 --mode acpi
$ sudo virsh start ubuntu-16.04-amd64
$ sudo virsh console ubuntu-16.04-amd64
$ sudo virsh shutdown ubuntu-16.04-amd64 --mode acpi
$ sudo virsh undefine ubuntu-16.04-amd64

Deleting a virtual machine:

evergreen ~ # virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     ubuntu-16.04-amd64             shut off
 -     ubuntu-16.04-node1             shut off
 -     ubuntu-16.04-node2             shut off
evergreen ~ # virsh dumpxml --domain ubuntu-16.04-node1 | grep 'source file'
      <source file='/home/vit/prjs/~...~/node1/ubuntu-16.04-amd64.img'/>
      <source file='/home/vit/prjs/~...~/node1/config.img'/>
evergreen ~ # ls -la /home/vit/prjs/~...~/node1/ubuntu-16.04-amd64.img /home/vit/prjs/~...~/node1/config.img
-rw-rw-r-- 1 libvirt-qemu kvm       374784 Dec  5 23:50 /home/vit/prjs/~...~/node1/config.img
-rw-r--r-- 1 root         root 10546774016 Feb  1 02:00 /home/vit/prjs/~...~/node1/ubuntu-16.04-amd64.img
evergreen ~ # virsh undefine --domain ubuntu-16.04-node1
Domain ubuntu-16.04-node1 has been undefined
evergreen ~ # virsh list --all
 Id    Name                           State
----------------------------------------------------
 -     ubuntu-16.04-amd64             shut off
 -     ubuntu-16.04-node2             shut off

evergreen ~ # 

Try to ignore that cmd, and go ahead.

…

On Wed, Aug 28, 2019 at 6:21 PM NCLI ***@***.***> wrote: I know these are just intended as notes for you, but I'm having trouble with this exact process. When I try to run $ virsh change-media ubuntu-16.04-amd64 hda --eject --config, I get an error: error: failed to get domain 'ubuntu-16.04-amd64' error: Domain not found: no domain with matching name 'ubuntu-16.04-amd64' Do you have any idea what I might be doing wrong? — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <https://gist.github.com/80dd7f603898bd5dc81273092e412b34?email_source=notifications&email_token=AAKE256YA22D6YVHHOHL4PLQG2JXFA5CNFSM4IRKDD5KYY3PNVWWK3TUL52HS4DFVNDWS43UINXW23LFNZ2KUY3PNVWWK3TUL5UWJTQAFXYHA#gistcomment-3010672>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAKE253QFUI5AHTOR62HMVDQG2JXFANCNFSM4IRKDD5A> .

Virtual Machine Setup for QEMU in Linux