Книга: Knoppix: Knoppix, Damn Small Linux, Kanotix, Slitaz Gnu|linux, Musix Gnu+linux, Knoppix Std, Kurumin, Quantian, Hikarunix, Zonecd

Purchase includes free access to book updates online and a free trial membership in the publisher's book club where you can select from more than a million books without charge. Chapters: Knoppix, Damn Small Linux, Kanotix, Slitaz Gnu/linux, Musix Gnu+linux, Knoppix Std, Kurumin, Quantian, Hikarunix, Zonecd, Honeypot and Forensic Analysis Tool, Kaella, Cloop, Feather Linux, Morphix, Nepalinux, Klaus Knopper, Monoppix, Clusterknoppix, Oralux. Excerpt: The compressed loopback device or cloop is a module for the Linux kernel . It adds support for transparently decompressed, read-only block devices. It is not a compressed file system in itself. It was originally written for the Levanta Bootable Business Card by Rusty Russell , but is now maintained by Klaus Knopper , the author of Knoppix . cloop is mostly used as a convenient way to compress conventional file systems onto Live CDs . A compression ratio of about 2.5:1 is common for software. The Knoppix cloop image, for example, is 700MB compressed and around 1.8GB uncompressed. Design cloop images contain: The data blocks are compressed separately this makes it possible to seek to individual blocks without having to decompress the entire image from the start, but at the cost of slightly reducing the compression ratio. Live CD images typically use a block size of 256k as a compromise between decompression speed and space-efficiency. Apple uses a similar file format in the compressed variant of its DMG disk images. Limitations References (URLs online) See also (online edition) Websites (URLs online) A hyperlinked version of this chapter is at ClusterKnoppix is a specialized Linux distribution based on the Knoppix distribution, but which uses the openMosix kernel. Traditionally, clustered computing could only be achieved by setting up individual RSH keys, creating NFS shares, editing host files, setting static IPs, and applying kernel patches manually. ClusterKnoppix effectively renders most of this work unnecessary....