Red Hat Bugzilla – Bug 441980
No /dev/dvd created on T61
Last modified: 2009-01-09 01:22:13 EST
I have a new ThinkPad T61 laptop running F8+updates. Most things are
working just fine. I have a CDRW and DVD device on the notebook.
Udev creates /dev/cdrom1 and /dev/cdrw1 devices but not /dev/dvd
device, so when I try to use mplayer, xine etc to watch a dvd the device
As a temporary solution I used /dev/udev/devices directory and put
in there a link from dvd--->sr0. This then creates the device and it
works fine except I get an error message during boot to use makedev.d
instead. When I add "dvd" into the file in that directory no device is
I am not sure what info is needed but here is some:
ThinkPad BIOS 7LETB2WW (2.12 ), EC 7KHT24WW-1.08
Lenovo ThinkPad T61, model 7662CTO
kernel: ata4.00: ATAPI: HL-DT-STCD-RW/DVD DRIVE GCC-M10N, 1.02, max UDMA/33
kernel: udev: renamed network interface ath0 to wlan0
kernel: firewire_core: created device fw0: GUID 00016c00005a5b19, S400
kernel: ata4.00: configured for UDMA/33
kernel: scsi 3:0:0:0: CD-ROM HL-DT-ST RW/DVD GCC-M10N 1.02 PQ: 0 ANSI: 5
kernel: scsi 3:0:0:0: Attached scsi generic sg1 type 5
kernel: ACPI: PCI Interrupt 0000:00:1b.0[B] -> GSI 17 (level, low) -> IRQ 17
ata4.00: ATAPI: HL-DT-STCD-RW/DVD DRIVE GCC-M10N, 1.02, max UDMA/33
scsi 3:0:0:0: CD-ROM HL-DT-ST RW/DVD GCC-M10N 1.02 PQ: 0 ANSI: 5
scsi 3:0:0:0: Attached scsi generic sg1 type 5
ACPI: PCI Interrupt 0000:00:1b.0[B] -> GSI 17 (level, low) -> IRQ 17
hda_intel: probe_mask set to 0x1 for device 17aa:20ac
PCI: Setting latency timer of device 0000:00:1b.0 to 64
Driver 'sr' needs updating - please use bus_type methods
sr0: scsi3-mmc drive: 24x/24x writer cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr 3:0:0:0: Attached scsi CD-ROM sr0
Some more info:
Host: scsi3 Channel: 00 Id: 00 Lun: 00
Vendor: HL-DT-ST Model: RW/DVD GCC-M10N Rev: 1.02
Type: CD-ROM ANSI SCSI revision: 05
# wodim -scanbus
3,0,0 300) 'HL-DT-ST' 'RW/DVD GCC-M10N ' '1.02' Removable CD-ROM
# /lib/udev/cdrom_id /dev/sr0
run in one terminal:
# udevcontrol --log_priority=debug
and in another:
# echo 1 > /sys/class/block/sr0/uevent
and attach the output of udevmonitor and the output of:
# grep udev /var/log/messages
There was no /sys/class/block/sr0/uevent but /sys/block/sr0/uevent
so I used that. Messages from udevmonitor on console is below and I will
attach the stuff from /var/log/messages.
udevmonitor will print the received events for:
UDEV the event which udev sends out after rule processing
UEVENT the kernel uevent
UEVENT[1208989634.937943] add /block/sr0 (block)
UDEV [1208989635.114812] add /block/sr0 (block)
Created attachment 303559 [details]
and then remove it. This file should be regenerated.
Hopefully after that you should have /dev/dvd
Created attachment 303709 [details]
old persistent rules file
Removing this file solved it.
I disk duplicated from my desktop to my laptop over the network
and this file came from the desktop version.
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