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[Libcdio-devel] libcdio tools cannot read multi-exent files with Joliet

From: Ben Kohler
Subject: [Libcdio-devel] libcdio tools cannot read multi-exent files with Joliet exensions on
Date: Thu, 23 Jun 2022 09:54:44 -0500


I'm not sure where the problem lies, but I've found that for an iso
created with (cdrtools) mkisofs -J -iso-level 3, libcdio tools like
iso-info and iso-read are not able to handle multi-extent files.  I'm
noticing this issue because Rufus is having trouble unpacking the ISO
created with these options for the Gentoo Livegui ISO.  I've attached
a log of iso-info output, there should be a ~5GB image.squashfs file
in the ISO root directory.

I was able to reproduce the problem with a simpler test case:
$ mkisofs -J -l -V "Test ISO" -o ~/test.iso -z -iso-level 3 test/
Where test/ dir contains a large >4GB file.

When I re-create the iso without -J (disabling Joliet extensions), it
works as expected.

Is this something that should be handled properly by libcdio, or am I
using an improper combination of options on mkisofs?


Attachment: iso-info.log
Description: Text Data

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