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Bug 1065642 - libcdio 0.90 iso-read cannot read many Linux .iso, cannot read RHEL 7's .iso >4GB
Summary: libcdio 0.90 iso-read cannot read many Linux .iso, cannot read RHEL 7's .iso ...
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: libcdio
Version: 7.0
Hardware: All
OS: Linux
Target Milestone: rc
: ---
Assignee: Frantisek Kluknavsky
QA Contact: Desktop QE
Depends On:
TreeView+ depends on / blocked
Reported: 2014-02-15 10:42 UTC by mapsonder
Modified: 2014-06-18 08:47 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Rebase: Bug Fixes and Enhancements
Doc Text:
Clone Of:
Last Closed: 2014-06-13 10:42:29 UTC
Target Upstream Version:

Attachments (Terms of Use)

Description mapsonder 2014-02-15 10:42:09 UTC
Description of problem:

With libcdio 0.90 iso-read gives bad results for .iso files > 4GB.  Notably RHEL 7's own rhel-7-public-beta-x86_64-dvd.iso is 4.4GB large.  Also it cannot read Linux .iso files that use Rock Ridge for file name encoding.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:

1.  From bug report get most recent file at

2.  Run that file either plain or with a single parameter 5000, such as
./ 5000

3.  At the end of output see a lot of "read DEFECT" where you should see nothing but "read back OK".

Actual results:

At the end of output see a lot of "read DEFECT".

Expected results:

You should see nothing but "read back OK".

Additional info:

There were more than one problems in libcdio 0.90, not just the 4G limit.  E.g. Rock Ridge support (often needed for Linux) wasn't compiled in by default.

libcdio 0.92 fixes a lot of problems, and has been out for a couple of months, and has been working well so far.

I don't think relevant fixes can be isolated for patching 0.90.

There also is a discussion in docs files at

RHEL 7.0 should release with a healthy libcdio 0.92.

Comment 5 Vadim Rutkovsky 2014-03-21 11:16:18 UTC
Verified on libcdio-0.92-1.el7.x86_64:
Overall success of :)

Comment 6 Ludek Smid 2014-06-13 10:42:29 UTC
This request was resolved in Red Hat Enterprise Linux 7.0.

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