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   Linux FAQ > 4. Compatibility with Other Operating Systems
Question:  4.3. Does Linux Support Compressed Ext2 File Systems?

The ext2compr project provides a kernel patch Information about them is located at

There is also a Web site for the e2compr patches. The code is still experimental and consists of patches for the 2.0 and 2.1 kernels. For more information about the project, including the latest patches, and the address of the mailing list, look up the URL at

[Roderich Schupp, Peter Moulder]

zlibc is a program that allows existing applications to read compressed (GNU gzip'ed) files as if they were not compressed. Look at The author is Alain Knaff.

There is also a compressing block device driver, "DouBle," by Jean-Marc Verbavatz, which can provide on-the-fly disk compression in the kernel. The source-only distribution is located at This driver compresses inodes and directory information as well as files, so any corruption of the file system is likely to be serious.

There is also a package called tcx (Transparently Compressed Executables), which allows you to keep infrequently used executables compressed and only uncompress them temporarily when in use. It is located at

This FAQ is from Linux Frequently Asked Questions with Answers, maintained by Robert Kiesling

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