Optical Drive not being found

[johna]

For those using LXC (containers) I was able to get 1.10.10 working by:

1. Adding additional devices.allow to <container>/conf for sg devices
lxc.cgroup.devices.allow = c 21:* rwm

2. Include creation of new node in my node creation script (called via lxc.hook.autodev):
mknod -m 666 ${LXC_ROOTFS_MOUNT}/dev/sg3 c 21 3

This is for a privileged container. Entries may be different for your environment.

[aurik]

Actually the easiest way to determine a) whether you have the "sg" driver loaded AND which sg device corresponds to your optical drive is to use the lsscsi command with the "-g" option:

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root@media-srv:/export/src/makemkv# lsscsi -g
[0:0:0:0]    disk    ATA      ST1000LM024 HN-M 2AR1  /dev/sda   /dev/sg0 
[1:0:0:0]    cd/dvd  HL-DT-ST BDDVDRW UH12NS29 1.00  /dev/sr0   /dev/sg1 
[2:0:0:0]    disk    ATA      ST1000LM024 HN-M 2AR1  /dev/sdb   /dev/sg2 
[3:0:0:0]    disk    ATA      ST1000LM024 HN-M 2AR1  /dev/sdc   /dev/sg3 
[4:0:0:0]    disk    ATA      ST1000LM024 HN-M 2AR1  /dev/sdd   /dev/sg4 
[5:0:0:0]    disk    ATA      ST1000LM024 HN-M 2BA3  /dev/sde   /dev/sg5 
[6:0:0:0]    disk    ATA      ST1000LM024 HN-M 0001  /dev/sdf   /dev/sg6 
[6:0:1:0]    cd/dvd  HL-DT-ST BDDVDRW UH12NS29 1.00  /dev/sr1   /dev/sg7 
[6:0:2:0]    disk    ATA      OCZ-ONYX         1.7   /dev/sdg   /dev/sg8 
[6:0:3:0]    disk    ATA      ST1000LM024 HN-M 0002  /dev/sdh   /dev/sg9 
[6:0:4:0]    disk    ATA      ST1000LM024 HN-M 0001  /dev/sdi   /dev/sg10
[6:0:5:0]    disk    ATA      ST1000LM024 HN-M 0001  /dev/sdj   /dev/sg11

[spl147]

i'm at a loss here too. i've tried everything posted in this thread.

i'm on unraid 6.3.5.

can you take a look, mike?

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root@Tower:~# ls -la /dev/sg*
crw-rw---- 1 root cdrom 21, 3 Jan 31 06:56 /dev/sg3

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root@Tower:~# ls -la /dev/sr*
brw-rw---- 1 root cdrom 11, 0 Jan 31 06:56 /dev/sr0

you answered your own question

in the extra parameters section of the makemkv docker container put this:

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--device /dev/sr0 --device /dev/sg3

the directions are in the docker container itself

[mike admin]

Still waiting for "mike admin" to provide detailed instructions on his "simple fix".

Download 1.12.0

p.s. You do realize that "simple fix" were never my words?

it's a very simple fix,

[spl147]

Still waiting for "mike admin" to provide detailed instructions on his "simple fix".

Download 1.12.0

p.s. You do realize that "simple fix" were never my words?

it's a very simple fix,

yes sir, i did not realize i quoted you as such.

[alexsd]

Are you running MakeMKV inside a docker container? If yes, then I recommend that you post your issue on the support thread (unRAID forum) of the container . An incorrect container configuration can prevent the detection.

this got me working. thank you.

[alexsd]

i'm at a loss here too. i've tried everything posted in this thread.

i'm on unraid 6.3.5.

can you take a look, mike?

Code: Select all

root@Tower:~# ls -la /dev/sg*
crw-rw---- 1 root cdrom 21, 3 Jan 31 06:56 /dev/sg3

Code: Select all

root@Tower:~# ls -la /dev/sr*
brw-rw---- 1 root cdrom 11, 0 Jan 31 06:56 /dev/sr0

you answered your own question

in the extra parameters section of the makemkv docker container put this:

Code: Select all

--device /dev/sr0 --device /dev/sg3

the directions are in the docker container itself

correct. that's what got me going. thank you.

[nickjpg]

Is there a solution for a non "docker container makemkv" ?

[JohnJasonJordan]

I just installed 1.12.0 on Xubuntu 14.04.5 and the problem with not seeing the optical drives has been resolved. Thanks to all!

[nickjpg]

Just confirmed that 1.12.0 installed on Arch linux 3.16.0-4-amd64 works. Thank you!

[beandog]

Just a heads up, if you're using Gentoo, you'll need SCSI generic support in your kernel built-in or as a module (sg). Look for CONFIG_CHR_DEV_SG

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Device drivers -->
  SCSI device support -->
    <*> SCSI generic support

[jw.slackware]

Hi, guys.
Thanks for the information on this problem.
I'm using makemkv-1.12.0 on slackware64-current (14.2).
On my case, I was able to solve this problem by modifying /etc/rc.d/rc.modules.local.

#/sbin/modprobe sg
--> /sbin/modprobe sg

[elParaguayo]

Using "modprobe sg" works for me. Thank you.

I know we can load the sg module at boot by including it in /etc/modules-load.d however the arch wiki seems to suggest that udev rules should be used for handling module loading. Can someone provide an example of this?

[elParaguayo]

I'll answer my own question. This is the udev rule that works for me:

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SUBSYSTEMS=="scsi", DRIVERS=="sr", ATTRS{type}=="4|5", GROUP="optical", RUN="/sbin/modprobe -bv sg"

[archlinuxgogo]

I'll answer my own question. This is the udev rule that works for me:

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SUBSYSTEMS=="scsi", DRIVERS=="sr", ATTRS{type}=="4|5", GROUP="optical", RUN="/sbin/modprobe -bv sg"

I registered for the site just to say
"Thank You!!"

Worked like a champ.