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ballsystemlord
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Joined: 26 Feb 2013
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PostPosted: Mon Feb 16, 2015 8:36 pm    Post subject: /dev/dvd missing Reply with quote

I found a simmilar thread on this issue but and I corected a mistake I made in my kernel's config but my dvd drive is still not showing up as /dev/dvd.
The config is located at: http://dpaste.com/3PENA37
lspci output is located here: http://dpaste.com/25Z2TJ9
Thanks
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Ant P.
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PostPosted: Mon Feb 16, 2015 8:40 pm    Post subject: Reply with quote

udev creates the /dev/dvd symlink. Do you have it running correctly?
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VoidMage
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PostPosted: Tue Feb 17, 2015 5:09 am    Post subject: Reply with quote

Ant P. wrote:
udev creates the /dev/dvd symlink. Do you have it running correctly?


...actually, udev has stopped doing that quite awhile ago.
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ballsystemlord
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PostPosted: Wed Feb 18, 2015 11:54 pm    Post subject: Reply with quote

I'm using eudev version 1.10-r2
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Jaglover
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PostPosted: Wed Feb 18, 2015 11:58 pm    Post subject: Reply with quote

There is a number of ways to create it for you automatically, but do you really need it?
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ballsystemlord
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PostPosted: Mon Feb 23, 2015 12:02 am    Post subject: Reply with quote

Jaglover wrote:
There is a number of ways to create it for you automatically, but do you really need it?

I think so.
How do I create it, just symlink?
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netfab
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PostPosted: Wed Feb 25, 2015 10:40 am    Post subject: Reply with quote

Here how I do :
Code:

$ cat /etc/udev/rules.d/99-cdrom_id.rules

# udevadm info --query=property --name=/dev/sr0
# udevadm control --reload-rules

# Optiarc_DVD_RW_AD-5200A
KERNEL=="sr0", ENV{ID_MODEL}=="Optiarc_DVD_RW_AD-5200A", SYMLINK+="cdrom2 cdrw2 dvd2 dvdrw2 dvd_noir"

You run first udevadm command to get the correct ID_MODEL value.
Second command to reload rules, and probably create the symlinks.
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pietinger
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Joined: 17 Oct 2006
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PostPosted: Wed Feb 25, 2015 9:32 pm    Post subject: Reply with quote

Due to this thread I looked into my /etc/udev/rules.dir and into /dev. I found only ONE symlink (cdrom). The content of my "70-persistent-cd.rules" is:

# This file was automatically generated by the /lib64/udev/write_cd_rules
# program, run by the cd-aliases-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and set the $GENERATED variable.

# DVD-ROM_GDR8164B (pci-0000:03:00.1-scsi-0:0:0:0)
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:03:00.1-scsi-0:0:0:0", SYMLINK+="cdrom", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:03:00.1-scsi-0:0:0:0", SYMLINK+="dvd", ENV{GENERATED}="1"
# DVDRAM_GSA-H10N (pci-0000:03:00.1-scsi-0:0:1:0)
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:03:00.1-scsi-0:0:1:0", SYMLINK+="cdrom1", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:03:00.1-scsi-0:0:1:0", SYMLINK+="cdrw1", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:03:00.1-scsi-0:0:1:0", SYMLINK+="dvd1", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:03:00.1-scsi-0:0:1:0", SYMLINK+="dvdrw1", ENV{GENERATED}="1"


So, for me it looks like udev reads only the first line ... is it a bug or a feauture ... ?


(I have no eudev; my udev version is 216 (stable tree))
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netfab
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PostPosted: Thu Feb 26, 2015 3:09 pm    Post subject: Reply with quote

pietinger wrote:

I found only ONE symlink (cdrom)

So, for me it looks like udev reads only the first line ... is it a bug or a feauture ... ?

Your file seems really old, I think you could remove it since these rules are ignored.
The /dev/cdrom symlink you found is created by an udev rule into /lib/udev/rules.d/60-cdrom_id.rules.
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pietinger
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PostPosted: Thu Feb 26, 2015 8:28 pm    Post subject: Reply with quote

Thanks a lot.

netfab wrote:
Your file seems really old, I think you could remove it since these rules are ignored.
The /dev/cdrom symlink you found is created by an udev rule into /lib/udev/rules.d/60-cdrom_id.rules.


Your guess was right - but I have no 60-x-file (first installation of this pc was 2006). I have only these:

-rw-r--r-- 1 root root 972 10. Nov 2009 70-persistent-cd.rules
-rw-r--r-- 1 root root 421 8. Dez 2012 70-persistent-net.rules
-rw-r--r-- 1 root root 1820 8. Feb 2013 80-net-name-slot.rules
-rw-r--r-- 1 root root 1820 10. Sep 12:47 80-net-setup-link.rules

I will make no change - the system is running stable.
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