1SYSTEMD-DETECT-VIRT(1) systemd-detect-virt SYSTEMD-DETECT-VIRT(1)
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6 systemd-detect-virt - Detect execution in a virtualized environment
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9 systemd-detect-virt [OPTIONS...]
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12 systemd-detect-virt detects execution in a virtualized environment. It
13 identifies the virtualization technology and can distinguish full VM
14 virtualization from container virtualization. systemd-detect-virt
15 exits with a return value of 0 (success) if a virtualization technology
16 is detected, and non-zero (error) otherwise. By default any type of
17 virtualization is detected, and the options --container and --vm can be
18 used to limit what types of virtualization are detected.
19 When executed without --quiet will print a short identifier for the
21 detected virtualization technology. The following technologies are
22 currently identified:
23 Table 1. Known virtualization technologies (both VM, i.e. full hardware
25 virtualization, and container, i.e. shared kernel virtualization)
26 ┌──────────┬────────────────┬─────────────────────┐
27 │Type │ ID │ Product │
28 ├──────────┼────────────────┼─────────────────────┤
29 │ │ qemu │ QEMU software │
30 │ │ │ virtualization │
31 │ ├────────────────┼─────────────────────┤
32 │ │ kvm │ Linux KVM kernel │
33 │ │ │ virtual machine │
34 │ ├────────────────┼─────────────────────┤
35 │ │ zvm │ s390 z/VM │
36 │ ├────────────────┼─────────────────────┤
37 │ │ vmware │ VMware Workstation │
38 │ │ │ or Server, and │
39 │ │ │ related products │
40 │ ├────────────────┼─────────────────────┤
41 │ │ microsoft │ Hyper-V, also known │
42 │ │ │ as Viridian or │
43 │ │ │ Windows Server │
44 │VM │ │ Virtualization │
45 │ ├────────────────┼─────────────────────┤
46 │ │ oracle │ Oracle VM │
47 │ │ │ VirtualBox │
48 │ │ │ (historically │
49 │ │ │ marketed by innotek │
50 │ │ │ and Sun │
51 │ │ │ Microsystems) │
52 │ ├────────────────┼─────────────────────┤
53 │ │ xen │ Xen hypervisor │
54 │ │ │ (only domU, not │
55 │ │ │ dom0) │
56 │ ├────────────────┼─────────────────────┤
57 │ │ bochs │ Bochs Emulator │
58 │ ├────────────────┼─────────────────────┤
59 │ │ uml │ User-mode Linux │
60 ├──────────┼────────────────┼─────────────────────┤
61 │ │ openvz │ OpenVZ/Virtuozzo │
62 │ ├────────────────┼─────────────────────┤
63 │ │ lxc │ Linux container │
64 │ │ │ implementation by │
65 │ │ │ LXC │
66 │ ├────────────────┼─────────────────────┤
67 │ │ lxc-libvirt │ Linux container │
68 │ │ │ implementation by │
69 │container │ │ libvirt │
70 │ ├────────────────┼─────────────────────┤
71 │ │ systemd-nspawn │ systemd's minimal │
72 │ │ │ container │
73 │ │ │ implementation, see │
74 │ │ │ systemd-nspawn(1) │
75 │ ├────────────────┼─────────────────────┤
76 │ │ docker │ Docker container │
77 │ │ │ manager │
78 └──────────┴────────────────┴─────────────────────┘
79 If multiple virtualization solutions are used, only the "innermost" is
81 detected and identified. That means if both VM virtualization and
82 container virtualization are used in conjunction, only the latter will
83 be identified (unless --vm is passed).
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86 The following options are understood:
87 -c, --container
89 Only detects container virtualization (i.e. shared kernel
90 virtualization).
91 -v, --vm
93 Only detects VM virtualization (i.e. full hardware virtualization).
94 -q, --quiet
96 Suppress output of the virtualization technology identifier.
97 -h, --help
99 Print a short help text and exit.
100 --version
102 Print a short version string and exit.
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105 If a virtualization technology is detected, 0 is returned, a non-zero
106 code otherwise.
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109 systemd(1), systemd-nspawn(1)
110systemd 219 SYSTEMD-DETECT-VIRT(1)