ImVirt(3)

📦
version 0.9.6 · 7 versions
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💖 ImVirt 💖

okay so bestie, welcome to the ImVirt(3) manual page — it's literally here to detect several virtualizations, and the vibe is very “am I in a container or not?” ✨

📛 NAME

ImVirt — detects several virtualizations

✨ SYNOPSIS ✨

    use ImVirt;
    print imv_get(IMV_PROB_DEFAULT, imv_detect()),"\n";

🫶 DESCRIPTION 🫶

The ImVirt package tries to figure out whether it's running inside a virtualization container. At least these containers should get detected:

  • ARAnyM
  • KVM
  • lguest
  • LXC
  • OpenVZ
  • QEMU
  • UML
  • VirtualBox
  • Virtual PC/Server
  • VMware
  • Xen

🔍 DETECTION HEURISTIC 🔍

⚠️ bestie warning: the detection is based on a heuristic — you should not trust the result at all. like, fr fr, no cap.

ImVirt pokes at different well-known characteristics of different virtualization containers. Whether each characteristic is found or not found, it gets weighted by how significant it is.

The heuristic's result is a weighted tree. The leaves are the containers that got detected — and the ones that didn't. 🦋

🧚 FUNCTIONS 🧚

Use these functions to pull out the detected virtualization containers:

  • imv_get($prob) — gives you exactly one string describing the detected container. If the detected container's match probability is smaller than $prob, you get the string 'Unknown' back instead. 😭
  • imv_get_all() — gives you back a hash where any positive detected containers are the keys, and their corresponding match probability is the value.
  • imv_get_pos_results() — gives you a list of all possible results which might be returned by all detection modules. Those list entries might get some extra data appended, like version numbers etc.

💌 cute sign-off: this ImVirt(3) page is from perl v5.44.0, dated 2026-10-17. mwah, go detect those virtualizations bestie, slay 💅🦋

📦 where this page comes from