Blu-ray drive in Linux? (missing /dev/sr0)

kaschey

I have Baikal chipset and there is no /dev/sr0
There are only /dev/sg0 and /dev/sg1, but looks like they are not related to the Blu-ray drive.

I tried 5.4.210-whitehax0r and 5.4.213-whitehax0r-DF_AUS kernels, both are compiled with the "CONFIG_BLK_DEV_SR=y", initramfs by Nazky.

I'd like to read BD discs in PS4Linux. Any advice would be appreciated.

P.S.

$ cat /proc/sys/dev/cdrom/info 
CD-ROM information, Id: cdrom.c 3.20 2003/12/17

drive name:
drive speed:
drive # of slots:
Can close tray:
Can open tray:
Can lock tray:
Can change speed:
Can select disk:
Can read multisession:
Can read MCN:
Reports media changed:
Can play audio:
Can write CD-R:
Can write CD-RW:
Can read DVD:
Can write DVD-R:
Can write DVD-RAM:
Can read MRW:
Can write MRW:
Can write RAM:`

P.P.S. Attaching a SATA BD using USB to SATA converter works, and the /dev/sr0 successfully created. But it's an external drive, I'd like to use the PS4 drive. According to https://www.psxhax.com/threads/ps4-optical-drive-to-pc.1429/ it should be a regular SATA drive. I wonder why it doesn't work in PS4 Linux.

noob404

This will not be as easy, as just enabling the Blu-Ray Driver in the kernel. I believe no one (atleast publicly) has been able to get the internal BD drive working on PS4 Linux.

DF_AUS

noob404 I personally was on this subject some months back.
If i recall correctly, vast majority of the requirements was already enabled by default in the 5.4.213 whitehax0r kernel source, although there was a few that did need enabling.
I have snapshots (somewhere) on my PC
However, even with the kernel requirements enabled i was still unsuccessful with enabling the internal Drive.
The Op is correct, by adding an external player the path is mounted correctly (sr0)
I also tested by installing the exact same Linux iso Distro (installer) on my PC and my PS4 (to start from scratch) , the PC automatically detects the internal drive upon fresh installation WHERE AS the PS4 does not.
The only differences between installs was the kernel and initramfs.
So it's either I'm still missing said requirements from the kernel OR something related to the initramfs.
It's something I'll most likely come back to in the near future.

kaschey

Hm, I also noticed that the existing kernels have appeared more than a year ago, and nothing has been changed since then. Basically fresh kernels is a vanilla kernel + patches that add PS4 support, I haven't noticed that these patches have been updated or so.

I wonder who initially wrote these patches, is it planned to bring them upstream at some point, is there a place (like github) where people can submit a bug or fix a peace of code that will be maintained, does anybody gather such info at one place?

noob404

kaschey From what I know, it was originally written by the great Marcan, and groups like fail0verflow. As for bringing newer kernels, it requires a lot of hard work.