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ivuorinen
2026-01-21 00:23:19 +00:00
parent 60190f32c7
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6 changed files with 64 additions and 15 deletions
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tldr/linux/virt-sysprep
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@@ -6,13 +6,19 @@ source: https://github.com/tldr-pages/tldr.git
# virt-sysprep
> Reset, unconfigure, or customize a virtual machine image.
> More information: <https://manned.org/virt-sysprep>.
> This command can be used on a virtual machine or directly on a virtual machine disk image.
> Note: You may need to pass `--connect URI` to the commands or set up the URI in `$XDG_CONFIG_HOME/libvirt/libvirt.conf`.
> More information: <https://libguestfs.org/virt-sysprep.1.html>.
- List all supported operations (enabled operations are indicated with asterisks):
- List all supported operations (default enabled operations are indicated with asterisks):
`virt-sysprep --list-operations`
- Remove sensitive system data from a virtual machine image:
- Run only the specified operations:
`sudo virt-sysprep {{[-d|--domain]}} {{vm_name}} --operations {{operation1,operation2,...}}`
- Remove sensitive system data from a virtual machine image (operations marked as default):
`sudo virt-sysprep {{[-a|--add]}} {{path/to/image.qcow2}}`
@@ -20,14 +26,18 @@ source: https://github.com/tldr-pages/tldr.git
`sudo virt-sysprep {{[-d|--domain]}} {{vm_name}} {{[-n|--dry-run]}}`
- Run only the specified operations:
- Reset NetworkManager network configurations, persistent MAC mappings, and the hostname to avoid network conflicts:
`sudo virt-sysprep {{[-d|--domain]}} {{vm_name}} --operations {{operation1,operation2,...}}`
`sudo virt-sysprep {{[-d|--domain]}} {{vm_name}} --operations machine-id,net-hwaddr,net-hostname,net-nmconn,customize --hostname {{new_hostname}}`
- Generate a new `/etc/machine-id` file and enable customizations to be able to change the host name to avoid network conflicts:
- Set the root password for a disk image:
`sudo virt-sysprep {{[-d|--domain]}} {{vm_name}} --enable {{customizations}} --hostname {{host_name}} --operation {{machine-id}}`
`sudo virt-sysprep {{[-a|--add]}} {{path/to/image.qcow2}} --operations customize --root-password password:{{new_password}}`
- Display help:
- Inject a new user with a defined password and add them to the sudo group:
`virt-sysprep {{[-he|--help]}}`
`sudo virt-sysprep {{[-a|--add]}} {{path/to/image.qcow2}} --run-command 'useradd -m {{username}} && echo {{username}}:{{password}} | chpasswd && usermod -aG sudo {{username}}'`
- Install specific package(s) on a disk image (use `--update` to upgrade all installed packages to latest):
`sudo virt-sysprep {{[-a|--add]}} {{path/to/image.qcow2}} --operations customize --network --install {{package_name1,package_name2,...}}`