We developed "HTTP-FUSE Xenoppix" which boots Linux, Plan9, and NetBSD on Virtual Machine Monitor "Xen" with a small bootable (6.5MB) CD-ROM. The bootable CD-ROM includes boot loader, kernel, and miniroot only and most part of files are obtained via Internet with network loopback device
HTTP-FUSE CLOOP. It is made from cloop (Compressed Loopback block device) and FUSE (Filesystem USErspace). HTTP-FUSE CLOOP can reconstruct a block device from many small block files of HTTP servers. In this paper we describe the detail of the implementation and its performance.