Does LIBREELEC not support BD-R UDF 2.6 format discs?

ryusez · December 21, 2021 at 12:43 AM

MY Hardware :

RPI4B 2G V1.2

LIBREELEC 9.2.8

i have BD-ROM(USB-DRIVER) .

when it's connect RPI4 .. will show <optic disc> menu on Main screen menu..

and the <optic disc> menu, only two options operation <player> and <eject CD>...

but put the BD-DISK it's UDF 2.6 format... it's not BD PLayer format..

so i want BD-ROM can usage like USB-HDD Driver As Files can be reader...

how can i do..

thank you ..

ryusez · December 23, 2021 at 1:03 AM

First of all, my English is not good, so let me say sorry first.

After testing for about a day,

For the above questions, the preliminary understanding is as follows.

BD-ROM (USB-DEVICE) is recognized and installed by the system.

The main problem is the problem of inserting the <disc>.

Insert a general DVD teaching disc, it can be recognized normally, and the disc file path can be accessed. (just like USB-HDD).

But if you put in a BD-R(25G) disc (UDF 2.6 format), it will not be recognized.

that BD-R Disk is burned into a data disc (UDF 2.6 format) with CDBurnerXP Tools(Ver 4.5.8.7128) .

BD-ROM (USB-DEVICE) and BD-R (25G) discs are installed on win 7 & 10 systems

It can recognize and read the disc data normally.

Does LIBREELEC is not support BD-R UDF 2.6 format discs?

OR How can i do some thing to fix this problem.

Thank all..

---------------------

The system log records as follows: (BD-R 25G DISC)

------------------------

2021-12-22 20:44:40.169 T:2992628544 INFO: CD Analysis Report

2021-12-22 20:44:40.169 T:2992628544 INFO: __________________________________

2021-12-22 20:44:40.188 T:2992628544 INFO: CD-ROM with unknown filesystem

2021-12-22 20:44:40.191 T:2992628544 INFO: Tracks overall:1; Audio tracks:0; Data tracks:1

2021-12-22 20:44:40.191 T:2992628544 INFO: Using protocol D:\

2021-12-22 20:44:40.191 T:2992628544 WARNING: Filesystem is not supported

------------------------

---------------------

The system log records as follows: (general DVD teaching disc)

------------------------

2021-12-22 20:43:19.700 T:2992628544 INFO: Detecting DVD-ROM media filesystem...

2021-12-22 20:43:19.710 T:2992628544 INFO: CD Analysis Report

2021-12-22 20:43:19.710 T:2992628544 INFO: __________________________________

2021-12-22 20:43:19.720 T:2992628544 INFO: CD-ROM with ISO 9660 filesystem

2021-12-22 20:43:19.720 T:2992628544 INFO: ISO 9660: 563744 blocks, label

2021-12-22 20:43:19.725 T:2992628544 INFO: Tracks overall:1; Audio tracks:0; Data tracks:1

2021-12-22 20:43:19.955 T:2992628544 INFO: Using protocol iso9660://

2021-12-22 20:43:19.955 T:2992628544 INFO: Disc label:

**chewitt** · December 23, 2021 at 5:50 AM

Code

#
# CD-ROM/DVD Filesystems
#
CONFIG_ISO9660_FS=m
CONFIG_JOLIET=y
CONFIG_ZISOFS=y
CONFIG_UDF_FS=m
# end of CD-ROM/DVD Filesystems

^ We set those options in kernel defconfig. I'm not sure what BD-ROM needs, if different. Does the drive/disc work in a general purpose distro like Ubuntu or Fedora?

ryusez · December 23, 2021 at 8:17 AM

Thanks for your guidance. I can try it

But I am new to linux system...

Can the above settings explain the edited path and file name..

thanks

GDPR-7 · December 23, 2021 at 10:40 PM

Quote from chewitt

I'm not sure what BD-ROM needs

Blu-ray - Wikipedia

en.wikipedia.org

=> "Filesystem"

Universal Disk Format - Wikipedia

=> "Compatibility" => "Linux kernel 2.6.26 and newer"

so it should read that disk ...

Quote from ryusez

2021-12-22 20:44:40.188 T:2992628544 INFO: CD-ROM with unknown filesystem

ryusez

according to this:

How to mount cdrom in Linux

In this Linux mount cdrom tutorial, we cover the step by step instructions to mount a CD or DVD on a Linux system.

linuxconfig.org

one {s,c}ould identify the Type with command "blkid"

ryusez · December 24, 2021 at 1:52 PM

Thank you GDPR-7 for the explanation..

According to the instructions provided, the following instructions are provided for reference after executing the relevant instructions

Still unable to mount BDROM DISK

RPI-4B-2G:~ # blkid

/dev/mmcblk0: PTUUID="ee03917a" PTTYPE="dos"

/dev/mmcblk0p1: SEC_TYPE="msdos" LABEL_FATBOOT="LIBREELEC" LABEL="LIBREELEC" UUID="2410-0508" TYPE="vfat" PARTUUID="ee03917a-01"

/dev/mmcblk0p2: LABEL="STORAGE" UUID="09814adf-0b3e-462b-ad3f-abd8815b9b92" TYPE="ext4" PARTUUID="ee03917a-02"

/dev/sda1: LABEL="TOSHIBA_EXT" UUID="8fec9cc5-2bf7-1043-9012-006c93b01856" TYPE="ext4" PARTUUID="f5acfc11-01"

/dev/loop0: TYPE="squashfs"

/dev/sr0: UUID="2010112200000000" LABEL="MV-223-20200729" TYPE="udf"

RPI-4B-2G:~ #

RPI-4B-2G:/ # mkdir /media/cdrom

RPI-4B-2G:/ # mount /dev/sr0 /media/cdrom

mount: mounting /dev/sr0 on /media/cdrom failed: Invalid argument

RPI-4B-2G:/ #

RPI-4B-2G:/ # ^C

RPI-4B-2G:/ # mount -t udf /dev/sr0 /media/cdrom

mount: mounting /dev/sr0 on /media/cdrom failed: Invalid argument

RPI-4B-2G:/ #

https://imgur.com/aO1QjrU

=====================================

In addition, I tring use GOOGLE to do some thing ...

and Find the following command reference

But this instruction cannot be executed in LIBREELEC 9.2.8 system

No longer can create usable UDF images - Pali/Udftools

UDF formatting a BD-RE under Linux - media type "bdr" unknown?

This is on Ubuntu 20.04.1, Pioneer BDR-XS07, 50 GB BD-RE (multiple discs from different vendors tested). Formatting the disc with UDF version 2.50 works: $…

superuser.com

Formatting the disc with UDF version 2.50 works:
$ sudo mkudffs --utf8 --blocksize=2048 --media-type=bdr --udfrev=0x0250 --lvid=Backup2 --vid=Backup2 /dev/sr0

====================================

If you need me to help test related commands, or provide related system information.

Please guide me again. I can follow the instructions and provide information on the results of the execution.

Thanks for the assistance.

GDPR-7 · December 24, 2021 at 11:12 PM

Quote from ryusez

Please guide me again

sorry, no x-mas present to offer

I'm also only able to search the inet for a solution...

diederik · December 29, 2021 at 10:33 AM

Quote from ryusez

Formatting the disc with UDF version 2.50 works:
$ sudo mkudffs --utf8 --blocksize=2048 --media-type=bdr --udfrev=0x0250 --lvid=Backup2 --vid=Backup2 /dev/sr0

After doing that, were you able to mount the disk then? I'm guessing 'yes' as you said it works, but better to verify then assume.

If you then do the same command, but then explicitly use '2.60', would it fail like before or would that work?

Another interesting test would be to only specify the required parameters, so it uses the default values for all others

Why? It won't be the first time a Windows tool doesn't create things/disks according to spec/standard and while it may work on a or that specific Windows machine (possibly 'assisted' by that same disk creation tool), another tool working according to spec, may choke on it.

The homepage of the 'udftools' package on Debian is https://github.com/pali/udftools and I'm guessing LE uses that too. You may find additional hints there (in issues f.e.).

If you can reproduce the problem on a disk created on a Linux machine, that's also the (best) place to report it, so it can be fixed.

**chewitt** · December 29, 2021 at 2:47 PM

You guess incorrectly. LE uses libudfread, which is linked with libbluray.

ryusez · December 30, 2021 at 1:46 PM

diederik

As explained in the above reply. The following command cannot be executed on LE 9.2.8 system

"mkudffs --utf8 --blocksize=2048 --media-type=bdr --udfrev=0x0250 --lvid=Backup2 --vid=Backup2 /dev/sr0"

I also tried LE 10.0.1 & Raspberry Pi OS, and it was the same situation.

and i think the BDrom DISK, that need use the custom command method to read it.

So ask everyone,

How to set mkudffs to execute on LE 9.2.8 system (RPI 4B) ...

Thank you also chewitt for your reply

============================

i think mkudffs maybe to Re-compiler on LE ..

But I don't know how to use Linux system...

just only follow Someone can provide the SOP guideline .

Step by step follow the instructions

Thank all...