virt-clone 命令

常用示例

说明

virt-clone creates a copy of an existing libvirt virtual machine. It clones the VM configuration and can duplicate or create new disk images, generating unique identifiers for the clone. The tool handles creating new UUIDs, MAC addresses, and storage paths to avoid conflicts with the original VM. It is commonly used for creating test environments or deploying multiple similar VMs. Disks marked as readonly or shareable are skipped by default unless --force-copy is used.

参数

-o, --original _name_

Name of the original VM to clone (must be shut off).

--original-xml _file_

Libvirt guest XML file to use as the original guest.

-n, --name _name_

Name for the new cloned VM.

--auto-clone

Automatically generate new name, storage, and MAC.

-f, --file _path_

Path for the new disk image. Repeat for multi-disk guests.

-m, --mac _address_

MAC address for the new VM (or RANDOM).

-u, --uuid _uuid_

UUID for the new guest (default: randomly generated).

--preserve-data

Do not clone storage; preserve disk images and reference them.

--reflink

Use copy-on-write reflinks if the filesystem supports it.

--nonsparse

Fully allocate new storage instead of creating sparse files.

--force-copy _target_

Force cloning of the specified disk target (e.g. 'hdc', 'sda').

--replace

Shut down and remove any existing guest with the target name.

--print-xml

Print generated clone XML and exit without cloning.

-c, --connect _uri_

Connect to specified hypervisor URI.

-d, --debug

Print debugging information.