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I have access to some Debian Linux vps servers, however I cannot access their controls panel directly: only server administrator himself can do that.

Is there any way to find out what visualization technology is used on server from inside VPS? I need it only to know which kernel header package should I install (xen, openvz or any other).

IBr
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1 Answers1

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Several methods for detecting the virtualization technology are listed on http://www.dmo.ca/blog/detecting-virtualization-on-linux/. Among the suggestions, my preferred method is dmidecode:

  • VMWare:

    # dmidecode | egrep -i 'manufacturer|product'
Manufacturer: VMware, Inc.
Product Name: VMware Virtual Platform

  • Microsoft VirtualPC:

    # dmidecode | egrep -i 'manufacturer|product'
Manufacturer: Microsoft Corporation
Product Name: Virtual Machine

  • QEMU or KVM:

    # dmidecode | egrep -i 'vendor'
Vendor: QEMU

  • Virtuozzo or OpenVZ:

    # dmidecode
/dev/mem: Permission denied

  • Xen:

    # dmidecode | grep -i domU
Product Name: HVM domU
200_success
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  • openvz (and I think Virtuozzo) creates a /proc/usr_beancounters - to refine the detection :-) (There could be other virtualisation techniques which disallow reading /dev/mem - I'm for example not sure about lxc / linux namespaces. – mifritscher Sep 19 '17 at 16:03