SYSTEMD-DETECT-VIRT(1) systemd-detect-virt SYSTEMD-DETECT-VIRT(1)
NAME
systemd-detect-virt - Detect execution in a virtualized environment
SYNOPSIS
systemd-detect-virt [OPTIONS...]
DESCRIPTION
systemd-detect-virt detects execution in a virtualized environment. It identifies the virtualization
technology and can distinguish full VM virtualization from container virtualization. systemd-detect-virt
exits with a return value of 0 (success) if a virtualization technology is detected, and non-zero (error)
otherwise. By default any type of virtualization is detected, and the options --container and --vm can be used
to limit what types of virtualization are detected.
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 │
├──────────┼────────────────┼───────────────────────────────┤
│ │ 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 │
│VM │ │ 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 │
├──────────┼────────────────┼───────────────────────────────┤
│ │ openvz │ OpenVZ/Virtuozzo │
│ ├────────────────┼───────────────────────────────┤
│ │ lxc │ Linux container │
│ │ │ implementation by LXC │
│ ├────────────────┼───────────────────────────────┤
│ │ lxc-libvirt │ Linux container │
│container │ │ implementation by libvirt │
│ ├────────────────┼───────────────────────────────┤
│ │ systemd-nspawn │ systemd's minimal container │
│ │ │ implementation, see systemd- │
-c, --container
Only detects container virtualization (i.e. shared kernel virtualization).
-v, --vm
Only detects VM virtualization (i.e. full hardware virtualization).
-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.
SEE ALSO
systemd(1), systemd-nspawn(1)
systemd 219 SYSTEMD-DETECT-VIRT(1)
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