Lguest Reviews

Lguest Description

Lguest allows you to run multiple copies of the same 32-bit kernel, simply modprobe lg, then run Documentation/lguest/lguest to create a new guest. This is something I recommend you do. Lguest is very easy to set up. It's also very useful: I can test-boot Kernels with it in less that a second, which is about 10x faster then basic qemu and 100x faster as a real boot. It uses a pty console so you can pipe it through grep. lguest is a single kernel patch that includes the launcher. It is in 2.6.23.git13 and higher. Lguest is designed to isolate the guest from the host, so that it can't reach outside (except for virtual devices supplied to the host). A malicious guest kernel can pin host memory, but only up to the amount allowed to it. Images are usually set up to create console virtual consoles (/dev/tty0 etc), however, the lguest console can be found at /dev/hvc0.