Re: Duplicate inodes in 5.4-RELEASE-i386-disc1.iso

From: Marius Strobl (marius_at_alchemy.franken.de)
Date: 06/23/05

  • Next message: Gregg Cooper: "Re: Duplicate inodes in 5.4-RELEASE-i386-disc1.iso" 
    Date: Thu, 23 Jun 2005 23:03:13 +0200
To: Gregg Cooper <bsdcrank@squbes.com>

    On Thu, Jun 23, 2005 at 12:58:11PM -0400, Gregg Cooper wrote:
    > Dag-Erling Smørgrav wrote:
    >
    > >Scott Long <scottl@samsco.org> writes:
    > >
    > >
    > >>Gregg Cooper wrote:
    > >>
    > >>
    > >>>15005 -r--r--r-- 2 root wheel 0 May 8 03:05 dumpdates
    > >>>15005 -r--r--r-- 2 root wheel 142 May 8 03:05 fbtab
    > >>>83266 -r--r--r-- 2 root wheel 0 May 8 03:01 locale
    > >>>83266 -r--r--r-- 2 root wheel 31 May 8 03:01 mm.tmac
    > >>>83269 -r--r--r-- 2 root wheel 0 May 8 03:01 se_locale
    > >>>83269 -r--r--r-- 2 root wheel 97 May 8 03:01 se_ms.cov
    > >>>99056 -r--r--r-- 2 root wheel 0 May 8 03:05 utmp
    > >>>99056 -r--r--r-- 2 root wheel 18425 May 8 03:04 Makefile.dist
    > >>>
    > >>>
    > >>Maybe it's a bug in mkisofs?
    > >>
    > >>
    > >
    > >ISO 9660 filesystems donn't have inode numbers. The cd9660 code fakes
    > >them based on the location of each file's contents. This model breaks
    > >down for empty files, which have no contents and thus no meaningful
    > >location. Apparently, mkisofs simply keeps track of the last extent
    > >written and uses that for the location of the next file regardless of
    > >whether it actually has any contents, so empty files get the same
    > >inode number as the previous non-empty file.
    > >
    > >The attached patch will make mkisofs assign the lowest valid non-zero
    > >address to all empty files. They will therefore appear to be hard
    > >links to eachother, but not to random non-empty files.
    > >
    > >DES
    > >
    > >
    > Scott: Thanks for the Makefile snippet.
    >
    > DES: So fast - thanks! You provided a solution in less time than I spent
    > scratching my head ...
    >
    > marius: As port maintainer, can you shepherd this change into the
    > cdrtools project?
    >

    Please run it through the author of cdrtools first (Joerg Schilling
    <schilling@fokus.fraunhofer.de>). If he thinks it's the right thing
    to do I'm happy to add it to the port.

    Marius

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