Lguest

{{Use dmy dates|date=May 2023}}

{{Infobox software

| name = Lguest

| title = Lguest

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| author = Rusty Russell

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| operating system = Linux

| platform = Linux kernel

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| license = GNU General Public License

| website = {{URL|http://lguest.ozlabs.org/}}

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Lguest is a Linux kernel x86 virtualization hypervisor introduced in kernel version 2.6.23 (released 9 October 2007) and removed in kernel version 4.14 (November 2017).{{Cite news|url=https://lwn.net/Articles/733175/|title=The first half of the 4.14 merge window|last=Corbet|first=Jonathan|date=8 September 2017|work=LWN.net}} The hypervisor is an operating-system-level virtualization system capable of running unmodified 32-bit x86 Linux kernels as guest machines. Installation is as easy as running modprobe lg followed by tools/lguest/lguest to create a new guest.{{cite web

| url=https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/lguest/README?id=f938d2c892db0d80d144253d4a7b7083efdbedeb

| title=drivers/lguest/README

| first=Rusty

| last=Russell

| authorlink=Rusty Russell

| date=2007-07-26}}

Lguest can still be installed on kernel 4.14 and later through out-of-tree patches.

Lguest was maintained by Rusty Russell.{{cite web

| url=https://lists.ozlabs.org/pipermail/lguest/2017-October/002205.html

| title=Closing the curtain on lguest (and this mailing list!)

| author=Rusty Russell

| date=2017-10-15}}