systemd-detect-virt (1)
NAME
systemd-detect-virt - Detect execution in a virtualized environmentSYNOPSIS
- systemd-detect-virt [OPTIONS...]
DESCRIPTION
systemd-detect-virt
When executed without --quiet will print a short identifier for the detected virtualization technology. The following technologies are currently identified:
Table 1. Known virtualization technologies (both VM, i.e. full hardware virtualization, and container, i.e. shared kernel virtualization)
| Type | ID |
Product
|
| VM | qemu |
QEMU software virtualization
|
| kvm | Linux KVM kernel virtual machine | |
| zvm | s390 z/VM | |
| vmware | VMware Workstation or Server, and related products | |
| microsoft | Hyper-V, also known as Viridian or Windows Server Virtualization | |
| oracle | Oracle VM VirtualBox (historically marketed by innotek and Sun Microsystems) | |
| xen | Xen hypervisor (only domU, not dom0) | |
| bochs | Bochs Emulator | |
| uml | User-mode Linux | |
| parallels | Parallels Desktop, Parallels Server | |
| Container | openvz |
OpenVZ/Virtuozzo
|
| lxc | Linux container implementation by LXC | |
| lxc-libvirt | Linux container implementation by libvirt | |
| systemd-nspawn | systemd's minimal container implementation, see systemd-nspawn(1) | |
| docker | Docker container manager | |
| rkt | rkt app container runtime |
If multiple virtualization solutions are used, only the "innermost" is detected and identified. That means if both machine and container virtualization are used in conjunction, only the latter will be identified (unless --vm is passed).
OPTIONS
The following options are understood:
-c, --container
- Only detects container virtualization (i.e. shared kernel virtualization).
-v, --vm
- Only detects hardware virtualization).
-r, --chroot
- Detect whether invoked in a chroot(2) environment. In this mode, no output is written, but the return value indicates whether the process was invoked in a chroot() environment or not.
-q, --quiet
- Suppress output of the virtualization technology identifier.
-h, --help
- Print a short help text and exit.
--version
- Print a short version string and exit.
EXIT STATUS
If a virtualization technology is detected, 0 is returned, a non-zero code otherwise.