Projects / zisofs-tools

zisofs-tools

The zisofs filesystem is an extension to the ISO9660 filesystem that allows files, on a file-by-file basis, to be stored compressed and decompressed in real time. The zisofs filesystem is supported by recent versions of Linux (2.4.14 or later). Legacy systems can still read uncompressed files. zisofs-tools contains the tools necessary to create such a compressed ISO9660 filesystem and to read compressed files on a legacy system.

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Recent releases

  •  17 May 2007 06:44

    Release Notes: This release fixes the --sloppy option, which was documented but did not work.

    •  24 Jul 2004 04:59

      Release Notes: Portability fixes were made.

      •  14 Jun 2004 07:44

        Release Notes: Portability improvements were made.

        •  07 Nov 2002 07:11

          Release Notes: This version supports incrementally rebuilding a compressed filesystem tree, which can be substantially faster than recreating the tree from scratch.

          •  13 Nov 2001 07:41

            Release Notes: The included patch to cdrtools (mkisofs) was updated.

            Recent comments

            23 Mar 2010 18:01 cp5184

            is it possible, or would it be possible to use bz2 compression? I assume thiz uses gz.

            18 Aug 2008 20:44 craigmjackson

            Hard size limit
            I am trying to master a LiveCD using zisofs. I have been very successful so far in creating many DVDs and have it scripted well. Is there a hard size limit of zisofs and/or the portion of the kernel that supports it? If there is not I believe I have a bug against one of them since the only thing I changed was the size (uncompressed) from 3.5GB to 5GB.

            Screenshot:

            http://epitos.org/ziso-or-linux-bug.bmp

            Thank you Peter and crew. Very useful tool!

            04 Jun 2006 08:21 bugmenot

            Re: read from stdin
            Tried to pipe from mkzftree to mkisofs without success.
            Could not find a hint in the manpage and the web how to
            to that if it is possible at all...

            13 Jun 2004 14:46 hpa

            Re: read from stdin
            % mkisofs "/tmp/isofiles" |
            > mkzftree -F -
            > result.iso


            Doesn't really work... mkzftree is run before mkisofs, not after...

            08 Dec 2003 03:26 slacklive

            read from stdin
            It could be great if mkzftree could read a file
            (with -F) from stdin. Then I could use pipe like
            this:

            mkisofs "/tmp/isofiles" | mkzftree -F -
            result.iso

            It tries to open "-" as a real file instead of
            replacing it by stdin.

            Screenshot

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