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curmudgeon
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Joined: 08 Aug 2003
Posts: 1745
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 Posted: Thu Dec 23, 2010 4:37 am Post subject: Machine not seeing optical drive capabilities |
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I have on one of my machines a Teac DW-224E-A - one of those lovely "combo" drives (reads and writes CDs, reads DVDs).
On every other machine, /dev is populated with links representing all of the capabiliities of the optical drives (/dev/cdrom, /dev/cdrw, /dev/dvd, /dev/dvdrw).
On this machine, I have nothing but /dev/cdrom.
Does anyone know why (and how to fix it)? |
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sebaro
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Joined: 03 Jul 2006
Posts: 1141
Location: Romania
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| Posted: Thu Dec 23, 2010 5:32 am Post subject: |
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You need an udev rule for that.
Run "/lib/udev/write_cd_rules", or make it yourself
/etc/udev/rules.d/70-persistent-cd.rules:
| Code: | ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:07.1-scsi-1:0:0:0", SYMLINK+="cdrom", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:07.1-scsi-1:0:0:0", SYMLINK+="cdrw", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:07.1-scsi-1:0:0:0", SYMLINK+="dvd", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:07.1-scsi-1:0:0:0", SYMLINK+="dvdrw", ENV{GENERATED}="1" |
Replace "ENV{ID_PATH}" with yours, see "udevadm info -q path -n /dev/sr0". |
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curmudgeon
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Joined: 08 Aug 2003
Posts: 1745
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| Posted: Thu Dec 23, 2010 7:40 am Post subject: |
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| sebaro wrote: | You need an udev rule for that.
Run "/lib/udev/write_cd_rules", |
Well, that didn't quite work. I get:
| Code: |
# /lib/udev/write_cd_rules
Missing $DEVPATH.
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| sebaro wrote: | or make it yourself
/etc/udev/rules.d/70-persistent-cd.rules:
| Code: | ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:07.1-scsi-1:0:0:0", SYMLINK+="cdrom", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:07.1-scsi-1:0:0:0", SYMLINK+="cdrw", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:07.1-scsi-1:0:0:0", SYMLINK+="dvd", ENV{GENERATED}="1"
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:07.1-scsi-1:0:0:0", SYMLINK+="dvdrw", ENV{GENERATED}="1" |
Replace "ENV{ID_PATH}" with yours, see "udevadm info -q path -n /dev/sr0". |
I can certainly fix it that way. :) I do wonder why this never got (automatically) update. That file still shows the old cdrom (which I replaced with the combo drive over a year ago):
| Code: |
$ dog /etc/udev/rules.d/70-persistent-cd.rules
# This file was automatically generated by the /lib/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.
# CD-ROM_CRN-8245B (pci-0000:00:1f.1-scsi-1:0:0:0)
ENV{ID_CDROM}=="?*", ENV{ID_PATH}=="pci-0000:00:1f.1-scsi-1:0:0:0", SYMLINK+="cdrom", ENV{GENERATED}="1"
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Thank you for your help. |
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