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[Bug 1411728] Re: Growisofs fails to burn DVD-R DL multisesion above 4.5Gb if argument -M /dev/device is before -use-the-force-luke=4gms in argument list.

 

Hi,

are you really sure that the medium is DVD-R DL and not DVD+R DL.
DVD-R DL is said to be incapable of multi-session at all. I never
bought one. So i cannot tell what my drives would offer to do with
them.
I would be interested in seeing the output of

  dvd+rw-mediainfo /dev/sr0

The 4GB-check-problem is obviously in the loop beginning at
growisofs.c:2990

    for (i=1;i<argc;i++)

The interpretation of no_4gb_check happens inside this loop
rather than after it.

        if (dev_found && in_device)
            ...
                    if (/*(mmc_profile&0xFFFF)<0x20 ||*/ 
                        ((mmc_profile&0xFFFF)<0x40 && !no_4gb_check))

Of course one would have to check carefully whether it is ok
to move this whole interpretation out of the loop.

An interesting question is why the the check is disabled for
Blu-ray media: ((mmc_profile&0xFFFF)<0x40
The problem tackled by this 4 GB check is in old Linux kernels
(and still in modern FreeBSD) which take the byte address of the
directory record (inode) as 32-bit inode number. So if the
directory tree is stored above 4 GB, the inode numbers roll over
and inodes are not found any more.
This mount problem does not depend on the media type.


Have a nice day :)

Thomas

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to dvd+rw-tools in Ubuntu.
https://bugs.launchpad.net/bugs/1411728

Title:
  Growisofs fails to burn DVD-R DL multisesion above 4.5Gb if argument
  -M /dev/device is before -use-the-force-luke=4gms in argument list.

Status in dvd+rw-tools package in Ubuntu:
  New

Bug description:
  Growisofs uses no_4gb_check flag before parsing -use-the-force-
  luke=4gms, if -M /dev/device is before it on argument list.

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