<s>
Lguest	B-Application
is	O
a	O
Linux	B-Operating_System
kernel	I-Operating_System
x86	B-General_Concept
virtualization	I-General_Concept
hypervisor	B-Operating_System
introduced	O
in	O
kernel	B-Operating_System
version	O
2.6.23	O
(	O
released	O
9	O
October	O
2007	O
)	O
and	O
removed	O
in	O
kernel	B-Operating_System
version	O
4.14	O
(	O
November	O
2017	O
)	O
.	O
</s>
<s>
The	O
hypervisor	B-Operating_System
is	O
an	O
operating-system-level	B-Application
virtualization	I-Application
system	O
capable	O
of	O
running	O
unmodified	O
32-bit	O
x86	O
Linux	B-Operating_System
kernels	I-Operating_System
as	O
guest	O
machines	O
.	O
</s>
<s>
Installation	O
is	O
as	O
easy	O
as	O
running	O
modprobe	O
lg	O
followed	O
by	O
tools/lguest/lguest	O
to	O
create	O
a	O
new	O
guest	O
.	O
</s>
<s>
Lguest	B-Application
can	O
still	O
be	O
installed	O
on	O
kernel	B-Operating_System
4.14	O
and	O
later	O
through	O
out-of-tree	O
patches	O
.	O
</s>
<s>
Lguest	B-Application
was	O
maintained	O
by	O
Rusty	O
Russell	O
.	O
</s>
