virt-install 根据 qcow2 创建虚拟机

准备 qcow2 文件

ls -l /data/ctyunos/ctyun-2.0.1-02.qcow2

-rw------- 1 qemu qemu 21478375424 Jan 24 19:02 /data/ctyunos/ctyun-2.0.1-02.qcow2

净化 qcow2 

清除系统信息

virt-sysprep 会执行一系列操作，如清除 SSH 密钥、网络配置、日志文件等，确保映像在迁移或克隆后不会含有敏感信息。

virt-sysprep -a /data/ctyunos/ctyun-2.0.1-02.qcow2

[   0.0] Examining the guest ...
[  51.1] Performing "abrt-data" ...
[  51.1] Performing "backup-files" ...
[  52.2] Performing "bash-history" ...
[  52.2] Performing "blkid-tab" ...
[  52.3] Performing "crash-data" ...
[  52.3] Performing "cron-spool" ...
[  52.3] Performing "dhcp-client-state" ...
[  52.3] Performing "dhcp-server-state" ...
[  52.3] Performing "dovecot-data" ...
[  52.3] Performing "logfiles" ...
[  52.4] Performing "machine-id" ...
[  52.4] Performing "mail-spool" ...
[  52.4] Performing "net-hostname" ...
[  52.5] Performing "net-hwaddr" ...
[  52.5] Performing "pacct-log" ...
[  52.5] Performing "package-manager-cache" ...
[  52.5] Performing "pam-data" ...
[  52.5] Performing "passwd-backups" ...
[  52.6] Performing "puppet-data-log" ...
[  52.6] Performing "rh-subscription-manager" ...
[  52.6] Performing "rhn-systemid" ...
[  52.6] Performing "rpm-db" ...
[  52.6] Performing "samba-db-log" ...
[  52.6] Performing "script" ...
[  52.6] Performing "smolt-uuid" ...
[  52.7] Performing "ssh-hostkeys" ...
[  52.7] Performing "ssh-userdir" ...
[  52.7] Performing "sssd-db-log" ...
[  52.7] Performing "tmp-files" ...
[  52.7] Performing "udev-persistent-net" ...
[  52.7] Performing "utmp" ...
[  52.8] Performing "yum-uuid" ...
[  52.8] Performing "customize" ...
[  52.8] Setting a random seed
[  52.8] Setting the machine ID in /etc/machine-id
[  52.8] Performing "lvm-uuids" ...

创建虚拟机

virt-install \
  --name ctyun-2.0.1-02 \
  --ram 2048 \
  --vcpus 2  \
  --virt-type kvm \
  --os-variant generic \
  --description ctyun-2.0.1-02 \
  --network bridge=CN1,model=virtio \
  --network bridge=CN2,model=virtio  \
  --graphics vnc,listen=0.0.0.0 \
  --disk path=/data/ctyunos/ctyun-02_system.qcow2,format=qcow2,bus=virtio \
  --noautoconsole \
  --console pty,target_type=serial \
  --autostart \
  --boot hd

Starting install...
Domain creation completed.

查看虚拟机 ID

virsh list --all

 Id   Name             State
--------------------------------
 1    ctyun-2.0.1-01   running
 2    ctyun-2.0.1-02   running

登录虚拟机

virsh console 2

Connected to domain ctyun-2.0.1-02
Escape character is ^] (Ctrl + ])

localhost login: