vobcopy and libdvdread undefined symbol: dlopen

[mattsteven]

Reproduce:

1. Install Oneric 64 bit, update to latest software as of Sept 29,2011.
2. Attempt to rip a dvd with vobcopy, ie:

vobcopy -i /media/mydvd -m -v -l

3. Receive fatal error:
vobcopy: symbol lookup error: /usr/lib/libdvdread.so.4: undefined symbol: dlopen

[mattsteven (matthew-matts)]

Description: Ubuntu oneiric (development branch)
Release: 11.10

vobcopy:
  Installed: 1.1.0-1ubuntu2
  Candidate: 1.1.0-1ubuntu2
  Version table:
 *** 1.1.0-1ubuntu2 0
        500 http://us.archive.ubuntu.com/ubuntu/ oneiric/universe amd64 Packages
        100 /var/lib/dpkg/status

[mattsteven (matthew-matts)]

When trying to build vobcopy from source, I find that this may be a bug with libdvdread.so actually.

/usr/lib/gcc/x86_64-linux-gnu/4.6.1/../../../../lib/libdvdread.so: undefined reference to `dlopen'
/usr/lib/gcc/x86_64-linux-gnu/4.6.1/../../../../lib/libdvdread.so: undefined reference to `dlclose'
/usr/lib/gcc/x86_64-linux-gnu/4.6.1/../../../../lib/libdvdread.so: undefined reference to `dlsym'

libdvdread4:
  Installed: 4.1.3-10ubuntu4
  Candidate: 4.1.3-10ubuntu4
  Version table:
 *** 4.1.3-10ubuntu4 0
        500 http://us.archive.ubuntu.com/ubuntu/ oneiric/universe amd64 Packages
        100 /var/lib/dpkg/status

[mattsteven (matthew-matts)]

One web search for similar problems indicates that it may not have been built properly, rather it should be built with -ldl

http://root.cern.ch/phpBB3/viewtopic.php?f=5&t=7384

Building from source the libdvdread-0.9.7 from Hardy* fixes this for me and I'm able to build and use vobcopy 1.2 from the author's web site.

* https://launchpad.net/ubuntu/+source/libdvdread

[Phillip Graham (5hillip)]

Yes, I've struck this issue too today after upgrading. I'm not complaining. That's what betas are for. I'm still looking at other options before using the Hardy Version of libdvdread.

Cheers
Phil

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Jared Greenwald (jetsaredim)]

Odd thing is that vlc and totem can play DVDs just fine, wonder why...?

[mattsteven (matthew-matts)]

Probably they don't use the code that needs the dlopen function to work, while vobcopy does. Should be a very quick & easy fix for the maintainer once the bug gets to them.

[mattsteven (matthew-matts)]

Updated the bug to invalidate the vobcopy portion- this is certainly only related to libdvdread4 since other things using it such as lsdvd also will deliver

lsdvd: symbol lookup error: /usr/local/lib/libdvdread.so.4: undefined symbol: dlopen

[mattsteven (matthew-matts)]

On reinstall, it appears to have been fixed. Marking as such.

[mattsteven (matthew-matts)]

Appears that the latest libdvdread fixed this. Reopen if others have problems.

[Aapo Rantalainen (aapo-rantalainen)]

Seems fixed version 4.1.3-10ubuntu4.1 must be download manually from https://launchpad.net/ubuntu/+source/libdvdread
as http://packages.ubuntu.com/oneiric/libdvdread4 has only broken one 4.1.3-10ubuntu4.
(I didn't manage to get it with apt-get from repository)

[cariboo (cariboo)]

The problem was solved for me, by doing a fresh install, once Oneiric was released.

[Aapo Rantalainen (aapo-rantalainen)]

I tested with fresh installed on Ubuntu 11.10. 'apt-get install vobcopy' and I got working version of libdvdread.

Then I tested with Ubuntu 11.04
apt-get install vobcopy
do-release-upgrade
apt-get update
apt-get upgrade
-> Ended with broken libdvdread
(After manually downloading+installing newer deb from https://launchpad.net/ubuntu/+source/libdvdread vobcopy works again)