Problem with blu-ray in Slackware 13.0

Monkey114 · 12-25-2009, 11:59 AM

Hi,

I would like to be able to mount data blu-ray discs on my Slackware 13.0 computer. Not view blu-ray movies, just read the data blu-ray discs I have burned. I would like to be able to mount then in console mode, I don't want to need XWindows to see content of my discs. When I try to mount a blu-ray discs I get that error message:

Code:

mount: wrong fs type, bad option, bad superblock on /dev/sr0,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

It work perfectly when I try to mount a normal DVD.

Here is my fstab file:

Code:

/dev/cdrom       /mnt/cdrom       auto        noauto,owner,ro  0   0

/dev/cdrom is a link to /dev/sr0 .

I don't know if udf support is enabled in the slackware 13.0 default kernel, but the udf module is not loaded. When I try to load it I get that error message:

Code:

root@darkstar:/mnt# modprobe udf
FATAL: Error inserting udf (/lib/modules/2.6.29.6-smp/kernel/fs/udf/udf.ko): Device or resource busy

When I'm in XWindows (kde 4.2) I can see the content of DVD discs but not blu-ray discs.

Anybody have a clue?

AleLinuxBSD · 12-26-2009, 02:40 AM

I think your computer device don't support blue ray disk (this is normal only recently they cost a little less ...).

Monkey114 · 12-26-2009, 11:14 PM

Quote:

Originally Posted by AleLinuxBSD

I think your computer device don't support blue ray disk (this is normal only recently they cost a little less ...).

No it support it, I paid an extra 250$ for a blu-ray burner... Besides it works perfectly in Micro$oft Windows XP...

jschiwal · 12-27-2009, 03:08 AM

Post the results of "sudo /sbin/modinfo udf". Is the version at least 2.5?

Does "lsmod" show that the udf module is already loaded?

Grep for "UDF" in /boot/config-<version> or /proc/config.gz. Is UDF enabled for your kernel?

Also look at "file -s /dev/sr0".

Monkey114 · 12-27-2009, 04:34 AM

Here's what is say in /boot/config-huge-smp-2.6.29.6-smp :

Code:

# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=y
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=y
CONFIG_UDF_NLS=y

The UDF filesystem support seem included in the kernel...

Here is the output of "modinfo udf", it seem to be the right version:

Code:

root@darkstar:/boot# modinfo udf
filename:       /lib/modules/2.6.29.6-smp/kernel/fs/udf/udf.ko
license:        GPL
description:    Universal Disk Format Filesystem
author:         Ben Fennema
depends:        crc-itu-t
vermagic:       2.6.29.6-smp SMP mod_unload 686

When I do a lsmod the module udf doesn't show in the list...

Here is what it say for "file -s /dev/sr0" with a blu-ray disc in the drive:

Code:

root@darkstar:/boot# file -s /dev/sr0
/dev/sr0: writable, no read permission

with a normal CD in the drive it say that:

Code:

root@darkstar:/boot# file -s /dev/sr0
/dev/sr0: ISO 9660 CD-ROM filesystem data 'S13_0d1                        ' (bootable)

Hope this help...

jschiwal · 12-28-2009, 11:49 AM

Log out of KDE and try modprobing the udf module again from a virtual terminal. If it fails try "sudo tail -f /var/log/messages". The kernel messages may provide more precise information on what the problem is.

Also try modprobing UDF before inserting a disc in the drive.

Monkey114 · 01-01-2010, 03:56 PM

Sorry if it took a long time to respond, I had to reinstall all my Linux system because I changed my hard drive. Also I installed the latest version of the kernel, 2.6.32.2 to see if that could help with my blu-ray problem... I made sure to include UDF support in the kernel before compiling, but my blu-ray discs don't mount even with the new kernel... Normal DVD's work fine...

I tried "sudo tail -f /var/log/messages" and it doesn't show anything about UDF of blu-ray or CD-ROM...

Monkey114 · 01-01-2010, 05:02 PM

I think I found the cause of the problem. I googled a little bit and I found out that Blu-Ray discs use UDF version 2.50 and BD-R (Recordable blu-ray) uses UDF 2.60. I tried to mount a movie Blu-Ray disc that I bought and it worked. I then did some more googling and apparently UDF 2.60 isn't supported by the Linux kernel yet. OpenBSD, FreeBSD and NetBSD support it. So I think I just have to wait until the Linux kernel support it, since many other opensource operating system have support for it it shouldn't be too long...

Thanks for the help, I learned a few thing...